What is Rink-Amide resin?

Rink-Amide resin is originally developed for SPS of peptide amides. Now the ambit of its appliance is continued from carboxylic amides to the apathy of amines, commissioned amides. Libaries of primary amines accept been actinic by the analysis of Rink amine adhesive with aldehyde to anatomy aldimines, which are after reacted with Grignard reagents or lithium reagents to crop amines that are not commercially accessible. These amines are appear from adhesive by treatmnet with TFA-water-DCM (5:5:90) for 5 h at allowance temperature. N-Substituted amides are acquired by abbreviation the above-mentioned aldimines with Na(CN)BH3 to the agnate amines, followed by acylation with acerbic chlorides or balanced anhydrides. The produts are broken with TFA-water-DCM (5:1:94) for 20 min at allowance temperature. Direct functionalization of Rink amide adhesive with nucleophiles has aswell been appear. The Fmoc attention accumulation can be readly removed with 20% piperidine in DMF above-mentioned to the aloft manipulation.
Rink-Amide resin are the accepted supports for the assembly of primary carboxamides and sulfonamides by solid appearance synthesis. Following abatement of the Fmoc accumulation (if present), the resin-bound amino accumulation can be acylated application accepted methods of amide band formation. The consistent amide accumulation is abiding to a advanced ambit of acknowledgment altitude but is calmly broken from the adhesive by analysis with 95% TFA.
Two types of Rink amide adhesive are available: in the aboriginal the benzhydrylamine handle is affiliated anon to the polystyrene abject cast via an ether band (Rink amide resin); in the additional the Rink amide linker is absorbed to an adapted amino-functionalized adhesive via an amide band (Rink AM resin, Rink MBHA resin, and NovaSyn® TGR). The closing resins are about admired as the added robust, decidedly beneath acerb conditions, as they do not accommodate a potentially acerbic acute benzylic ether linkage.
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What is Macrophage?

Macrophages are beef produced by the adverse of monocytes in tissues. Animal macrophages are about 21 micrometres (0.00083 in) in diameter. Monocytes and macrophages are phagocytes. Macrophages activity in both non-specific aegis (innate immunity) as able-bodied as advice admit specific aegis mechanisms of bearcat animals. Their role is to phagocytose (engulf and again digest) cellular bits and pathogens, either as anchored or as adaptable cells. They aswell activate lymphocytes and added allowed beef to acknowledge to pathogens. They are specialized phagocytic beef that advance adopted substances, communicable bacilli and blight beef through abolition and ingestion. Macrophages can be articular by specific announcement of a amount of proteins including CD14, CD11b, F4/80 (mice)/EMR1 (human), lysozyme M, MAC-1/MAC-3 and CD68 by breeze cytometry or immunohistochemical staining. They move by activity of amoeboid movement.
Function
One important role of the Macrophage is the abatement of baleful cellular bits in the lungs. Removing asleep corpuscle actual is important in abiding inflammation, as the aboriginal stages of deepening are bedeviled by neutrophil granulocytes, which are ingested by macrophages if they appear of age (see CD-31 for a description of this process.)
The abatement of baleful tissue is, to a greater extent, handled by anchored macrophages, which will break at cardinal locations such as the lungs, liver, neural tissue, bone, annoyance and affiliation tissue, ingesting adopted abstracts such as bacilli and recruiting added macrophages if needed.
Macrophages are able beef that play abounding roles. As scavengers, they rid the physique of exhausted beef and added debris. Forth with blooming cells, they are foremost a part of the beef that "present" antigen, a acute role in initiating an allowed response. As secretory cells, monocytes and macrophages are basic to the adjustment of allowed responses and the development of inflammation; they aftermath a advanced arrangement of able actinic substances (monokines) including enzymes, accompaniment proteins, and authoritative factors such as interleukin-1. At the aforementioned time, they backpack receptors for lymphokines that acquiesce them to be "activated" into committed afterward of bacilli and tumour cells.
The aboriginal footfall to compassionate the accent of macrophages in beef repair, growth, and about-face is that there are two “waves” of macrophages with the access of damageable beef use – subpopulations that do and do not anon accept an access on acclimation muscle. The antecedent beachcomber is a phagocytic citizenry that comes forth during periods of added beef use that are acceptable to could cause beef film lysis and film inflammation, which can access and abase the capacity of afflicted beef fibers. These early-invading, phagocytic macrophages ability their accomplished absorption about 24 hours afterward the access of some anatomy of beef corpuscle abrasion or reloading. Their absorption rapidly declines afterwards 48 hours. The additional accumulation is the non-phagocytic types that are broadcast abreast adorning fibers. These aiguille amid two and four canicule and abide animated for several canicule during the hopeful beef rebuilding. The aboriginal subpopulation has no absolute account to acclimation muscle, while the additional non-phagocytic accumulation does.
It is anticipation that macrophages absolution acrid substances that access the proliferation, differentiation, growth, repair, and about-face of muscle, but at this time the agency that is produced to arbitrate these furnishings is unknown. It is accepted that macrophages' captivation in announcement tissue adjustment is not beef specific; they accrue in abundant tissues during the healing action appearance afterward injury.
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Specifications of (H-Cys-OMe)2•2HCl

(H-Cys-OMe)2•2HCl
Synonyms: Dimethyl L-cystinate dihydrochloride
CAS: 32854-09-4
MF: C8H18Cl2N2O4S2
MW: 341.28
Description of (H-Cys-OMe)2•2HCl
EINECS: 251-261-4
mp:  182-183 °C (dec.)(lit.)
storage temp.:  Store at RT.
Specification:Purum
Usage:Biochemical Research
Amino acids are the building blocks of proteins. They band together in chains to form the stuff from which your life is born. Think of amino acids as Legos for your life.
It's a two-step process: Amino acids get together and form peptides or polypeptides. It is from these groupings that proteins are made. And there's not just one kind of amino acid.
Amino acids make up 75% of the human body. They are essential to nearly every bodily function. Every chemical react
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What is HIV-1 gp120 used for?

HIV-1 gp120
Synonyms HIV-1 gp120, HIV1gp120, HIV-I gp120, HIVIgp120.
Human immunodeficiency virus (HIV) is a retrovirusthat can lead to a condition in which the immune systembegins to fail, leading to opportunistic infections. HIV primarily infects vital cells in the humanimmune systemsuch as helper T cells(specifically CD4+ T cells), macrophagesand dendritic cells. HIV infection leads to low levels of CD4+ T cells through three main mechanisms: firstly, direct viral killing of infected cells; secondly, increased rates of apoptosisin infected cells; and thirdly, killing of infected CD4+ T cells by CD8 cytotoxic lymphocytesthat recognize infected cells. When CD4+ T cell numbers decline below a critical level, cell-mediated immunityis lost, and the body becomes progressively more susceptible to opportunistic infections. HIV was classified as a member of the genus Lentivirus, part of the family of Retroviridae. Lentiviruses have many common morphologies and biological properties. Many species are infected by lentiviruses, which are characteristically responsible for long-duration illnesses with a long incubation period. Lentiviruses are transmitted as single-stranded, positive-sense, enveloped RNA viruses. Upon entry of the target cell, the viral RNA genomeis converted to double-stranded DNAby a virally encoded reverse transcriptasethat is present in the virus particle. This viral DNA is then integrated into the cellular DNA by a virally encoded integraseso that the genome can be transcribed. Once the virus has infected the cell, two pathways are possible: either the virus becomes latentand the infected cell continues to function, or the virus becomes active and replicates, and a large number of virus particles are liberated that can then infect other cells.
Immunogen    
Recombinant HIV-1 gp120 produced in baculovirus expression system.
Stability    
Stable for 2 yeas at -20o C. Avoid freeze/thaw cycles.
Applications of HIV-1 gp120
Binds to recombinant HIV-1 gp120 ELISA and Western Blot Optimal dilutions should be determined by the customer, based on titration. Suggested starting dilutions are listed belowWestern Blot: 1-500 to 1-1000.
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Specifications of Streptavidin from Streptomyces avidinii

Streptavidin from Streptomyces avidinii
CAS：9013-20-1
MW：60kD
Grade：Biotechnology grade
Vility：≥17 units/mg protein
Dnase,Rnase&protease activity：None detected
Electrophoresis (One Band)：Pass
Storage temp.: 2～8℃
Properties:Powder
Specification:BR
Usage:Biochemical research.
Streptomyces avidinii A 60kD tetrameric protein that exhibits high binding affinity for biotin.Able to bind one molecule of biotin with each subunit,streptavidin is useful in affinity chromatography,immunohistochemical,ELISA,and western blotting procedures using biotin-labeled antibodies and enzymes.
Streptavidin is a 60000 dalton protein antiseptic from the bacillus Streptomyces avidinii. Streptavidin homo-tetramers accept an abnormally top affection for biotin (also accepted as vitamin B7). With a break connected (Kd) on the adjustment of ≈10-14 mol/L, the bounden of biotin to streptavidin is one of the arch non-covalent interactions accepted in nature. Streptavidin is acclimated abundantly in atomic analysis and bionanotechnology due to the streptavidin-biotin complex's attrition to amoebic solvents, denaturants (e.g. guanidinium chloride), detergents (e.g. SDS, Triton), proteolytic enzymes, and extremes of temperature and pH.
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What is Novobiocin Sodium Salt?

Novobiocin Sodium Salt
CAS：1476-53-5
MF:C31H35NaO11
MW: 634.61
Content：≥90.0%
Titer：≥850mcg/mg
Properties:Powder
Storage temp.:2～8℃
Specification;BR
Novobiocin, also known as albamycin or cathomycin, is an aminocoumarin antibiotic that is produced by the actinomycete Streptomyces niveus, which has recently been identified as a subjective synonym for S. spheroides a member of the order Actinobacteria . Other aminocoumarin antibiotics include clorobiocin and coumermycin A1. Novobiocin was first reported in the mid-1950s (then called streptonivicin).
Clinical Use
Novobiocin is active against Staphylococcus epidermidis and may be used to differentiate it from the other coagulase-negative Staphylococcus saprophyticus, which is resistant to novobiocin, in culture.
Novobiocin was licenced for clinical use under the tradename Albamycin (Pharmacia And Upjohn) in the 1960s. Its efficacy has been demonstrated in preclinical and clinical trials. It has since been withdrawn from the market. Novobiocin is effective antistaphylococcal agent used in the treatment of MRSA
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What is 9-Fluorenone used for?

9-Fluorenone
CAS No.:486-25-9
Purity(HPLC):99%min (GC)
Appearance:Yellow crystal powder
Boiling point: 341.5 ℃
Melting point:82-85℃
Application:
9-Fluorenone is mainly used for making synthetic resins, dyes, pesticides, preservatives, etc.
Fluorenone is an aromatic organic compound with the chemical formula C13H8O. It is used to make antimalaria drugs. It can be produced from fluorene via oxidation (by common oxidizers or even atmospheric oxygen).
Fluorenone can be produced by catalytic oxidation of fluorene, or of fluorene fractions in the presence of a quarternary ammonium salt, or by catalytic oxidative cracking (oxicracking) of a suitable aromatic.
Fluorenone's production and use as an intermediate or reagent may result in its release to the environment through various waste streams. Fluorenone is also found in fly ash from municipal incinerators, and in wood smoke and fossil fuel combustion products. If released to the atmosphere, fluorenone will exist in both the vapor and particulate phases in the ambient atmosphere based on an estimated vapor pressure of 5.7X10-5 mm Hg at 25 deg C. Vapor-phase fluorenone is degraded in the atmosphere by reaction with photochemically produced hydroxyl radicals with an estimated half-life of about 3 days.
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What is Amyloid Precursor Protein(APP)?

Amyloid Precursor Protein(APP) is an integral membrane protein expressed in many tissues and concentrated in the synapses of neurons. Its primary function is not known, though it has been implicated as a regulator of synapse formation, neural plasticity and iron export. APP is best known and most commonly studied as the precursor molecule whose proteolysis generates beta amyloid (Aβ), a 39- to 42-amino acid peptide whose amyloid fibrillar form is the primary component of amyloid plaques found in the brains of Alzheimer's disease patients.
Amyloid Precursor Protein(APP) undergoes extensive post-translational modification including glycosylation, phosphorylation, and tyrosine sulfation, as well as many types of proteolytic processing to generate peptide fragments. It is commonly cleaved by proteases in the secretase family; alpha secretase and beta secretase both remove nearly the entire extracellular domain to release membrane-anchored carboxy-terminal fragments that may be associated with apoptosis. Cleavage by gamma secretase within the membrane-spanning domain generates the amyloid-beta fragment; gamma secretase is a large multi-subunit complex whose components have not yet been fully characterized, but include presenilin, whose gene has been identified as a major genetic risk factor for Alzheimer's.
Structure
A number of distinct, largely independently-folding structural domains have been identified in the APP sequence. The extracellular region, much larger than the intracellular region, is divided into the E1 and E2 domains, linked by an acidic domain (AcD); E1 contains two subdomains including a growth factor-like domain (GFLD) and a copper-binding domain (CuBD) interacting tightly together. A serine protease inhibitor domain, absent from the isoform differentially expressed in the brain, is found between acidic region and E2 domain. The complete crystal structure of APP has not yet been solved; however, individual domains have been successfully crystallized, the growth factor-like domain, the copper-binding domain, the complete E1 domain and the E2 domain.
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What is CD14/CD86(human)?

Cluster of differentiation 14 also known as CD14 is a human gene.
The protein encoded by this gene is a component of the innate immune system. CD14 exists in two forms. Either it is anchored into the membrane by a glycosylphosphatidylinositol tail (mCD14) or it appears in a soluble form (sCD14). Soluble CD14 either appears after shedding of mCD14 (48 kDa) or is directly secreted from intracellular vesicles (56 kDa).
CD14 takes its name from its inclusion in the cluster of differentiation group of cell surface marker proteins.
CD14 was the first described pattern recognition receptor.
Function
CD14 acts as a co-receptor (along with the Toll-like receptor TLR 4 and MD-2) for the detection of bacterial lipopolysaccharide (LPS). CD14 can bind LPS only in the presence of lipopolysaccharide-binding protein (LBP). Although LPS is considered its main ligand, CD14 also recognizes other pathogen-associated molecular patterns.
Cluster of Differentiation 86 (also known as CD86 and B7-2) is a protein expressed on antigen-presenting cells that provides costimulatory signals necessary for T cell activation and survival. It is the ligand for two different proteins on the T cell surface: CD28 (for autoregulation and intercellular association) and CTLA-4 (for attenuation of regulation and cellular disassociation). CD86 works in tandem with CD80 to prime T cells.
The CD86 gene encodes a type I membrane protein that is a member of the immunoglobulin superfamily. Alternative splicing results in two transcript variants encoding different isoforms. Additional transcript variants have been described, but their full-length sequences have not been determined.
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Specifications of Apramycin sulfate

Apramycin sulfate
Synonyms Apramycin sulfate salt
Molecular Formula C21H41N5O11.H2SO4
Molecular Weight 637.66
CAS Registry Number 65710-07-8
Specification of Apramycin sulfate
MW: 637.66
Content：～95%
Moistrue content:≤10.0%
Properties:Powder
Storage temp.:RT
Specification: High purity grade
Apramycin sulfate is used for biochemical research.
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What is Diphtheria Toxin?

Diphtheria Toxin is an exotoxin secreted by Corynebacterium diphtheriae, the pathogen bacterium that causes diphtheria. Unusually, the toxin gene is encoded by a bacteriophage (a virus that infects bacteria). The toxin causes the disease diphtheria in humans by gaining entry into the cell cytoplasm and inhibiting protein synthesis.
Diphtheria toxin is a single polypeptide chain of 535 amino acids consisting of two subunits linked by disulfide bridges. Binding to the cell surface of the less stable of these two subunits allows the more stable part of the protein to penetrate the host cell.
The crystal structure of the diphtheria toxin homodimer has been determined to 2.5A resolution. The structure reveals a Y-shaped molecule consisting of 3 domains. Fragment A contains the catalytic C domain, and fragment B consists of the T and R domains.
Diphtheria Toxin is extraordinarily potent. The lethal dose for humans is about 0.1 μg of toxin per kg of bodyweight. A massive release of toxin into the body will likely cause lethal necrosis of the heart and liver.
The drug denileukin diftitox uses diphtheria toxin as an antineoplastic agent.
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What is Adiponectin used for?

Adiponectin (also referred to as GBP-28, apM1, AdipoQ and Acrp30) is a protein which in humans is encoded by the ADIPOQ gene.
Structure
Adiponectin is a 244-amino-acid-long polypeptide. There are four audible regions of adiponectin. The aboriginal is a abbreviate arresting arrangement that targets the hormone for beard alfresco the cell; next is a abbreviate arena that varies amid species; the third is a 65-amino acerbic arena with affinity to collagenous proteins; the endure is a annular domain. Overall this gene shows affinity to the accompaniment 1Q factors (C1Q). However, if the 3-dimensional anatomy of the annular arena was determined, a arresting affinity to TNFα was observed, admitting different protein sequences.
Function
Adiponectin is a protein hormone that modulates a number of metabolic processes, including glucose regulation and fatty acid catabolism. Adiponectin is exclusively secreted from adipose tissue (and also from the placenta in pregnancy) into the bloodstream and is very abundant in plasma relative to many hormones. Levels of the hormone are inversely correlated with body fat percentage in adults, while the association in infants and young children is less clear. Transgenic mice with increased adiponectin show impaired adipocyte differentiation and increased energy expenditure associated with protein uncoupling. The hormone plays a role in the suppression of the metabolic derangements that may result in type 2 diabetes, obesity, atherosclerosis, non-alcoholic fatty liver disease (NAFLD) and an independent risk factor for metabolic syndrome. Adiponectin in combination with leptin has been shown to completely reverse insulin resistance in mice.
Adiponectin is secreted into the bloodstream where it accounts for approximately 0.01% of all plasma protein at around 5-10 μg/mL. Plasma concentrations reveal a sexual dimorphism, with females having higher levels than males. Levels of adiponectin are reduced in diabetics compared to non-diabetics. Weight reduction significantly increases circulating levels.
Adiponectin automatically self-associates into larger structures. Initially, three adiponectin molecules bind together to form a homotrimer. The trimers continue to self-associate and form hexamers or dodecamers. Like the plasma concentration, the relative levels of the higher-order structures are sexually dimorphic, where females have increased proportions of the high-molecular weight forms. Recent studies showed that the high-molecular weight form may be the most biologically active form regarding glucose homeostasis. High-molecular-weight adiponectin was further found to be associated with a lower risk of diabetes with similar magnitude of association as total adiponectin.
Adiponectin exerts some of its weight reduction effects via the brain. This is similar to the action of leptin, but the two hormones perform complementary actions, and can have additive effects.
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How to get L-Hydroxyproline?

L-Hydroxyproline, also accepted as oxaceprol, is a biologic acclimated for the administration of osteoarthritis. Based on a abstraction appear in October 2003 by the "Aging Clinical and Experimental Research," osteoarthritis is the a lot of accepted anatomy of debilitating degenerative collective ache that causes anatomic crime and bargain ability in earlier adults. In a abstraction appear by "Clinical Rheumatology" in 2000, the advisers acclaimed the absolute aftereffect of oxaceprol in attention the collective action and inhibiting the deepening aural the collective abridged that causes the astringent affliction in osteoarthritis.
Allergic Reaction
The New Dietary Ingredient Notification by Kyowa Hakko U.S.A Inc. also mentioned that less than 1 percent of the population taking oxaceprol can sometimes develop symptoms of allergic reaction even with a minimal daily dose of 600 mg. This may include reddening of the skin and reddish skin patches. According to the paper by Chepasaar Chem.-Pharm., other manifestations of allergic reaction may also include loss of hair, joint pains, inflammation of blood vessels and severe itchiness. Abrupt cessation of intake of this medication is necessary to stop these symptoms.
Drug Interaction with Other Medications
As stated in the reference paper by Chepasaar Chem.-Pharm., L-Hydroxyproline can sometimes interact with drugs such as vitamin K antagonist, the blood-thinning medication. Thus, the pharmaceutical company recommended that patients taking oxaceprol simultaneously with vitamin K antagonist medication undergo regular blood tests such as prothrombin to monitor the possible counter-effect of oxaceprol with that medication.
Physiological Role
Cells of the human body use proline and 19 other amino acids as building blocks in protein synthesis. Subsequent to its incorporation into proteins, a chemical reaction sometimes changes proline into L-hydroxyproline. This change commonly occurs in a protein called collagen, the chief component of the connective tissue that forms the extracellular matrix of such tissues as bone, cartilage and skin. So a paramount benefit of L-hydroxyproline is its physiological role as a component of the protein collagen.
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What is Streptavidin from Streptomyces avidinii?

Streptavidin is a 60000 dalton protein purified from the bacterium Streptomyces avidinii. Streptavidin homo-tetramers have an extraordinarily high affinity for biotin (also known as vitamin B7). With a dissociation constant (Kd) on the order of ≈10-14 mol/L, the binding of biotin to streptavidin is one of the strongest non-covalent interactions known in nature. Streptavidin is used extensively in molecular biology and bionanotechnology due to the streptavidin-biotin complex's resistance to organic solvents, denaturants (e.g. guanidinium chloride), detergents (e.g. SDS, Triton), proteolytic enzymes, and extremes of temperature and pH.
Structure
The crystal structure of streptavidin with biotin bound was first solved in 1989 by Hendrickson et al. and as of February 2012, there are 135 structures deposited in the Protein Data Bank. See this link for a complete list. The N and C termini of the 159 residue full-length protein are processed to give a shorter ‘core’ streptavidin, usually composed of residues 13 - 139; removal of the N and C termini is necessary for the high biotin-binding affinity. The secondary structure of a streptavidin monomer is composed of eight antiparallel β-strands, which fold to give an antiparallel beta barrel tertiary structure. A biotin binding-site is located at one end of each β-barrel. Four identical Streptavidin monomers (i.e. four identical β-barrels) associate to give streptavidin’s tetrameric quaternary structure. The biotin binding-site in each barrel consists of residues from the interior of the barrel, together with a conserved Trp120 from neighbouring subunit. In this way, each subunit contributes to the binding site on the neighbouring subunit, and so the tetramer can also be considered a dimer of functional dimers.
Uses in Biotechnology
Among the most common uses are the purification or detection of various biomolecules. The strong streptavidin-biotin bond can be used to attach various biomolecules to one another or onto a solid support. Harsh conditions are needed to break the streptavidin-biotin interaction, which often denatures the protein of interest being purified. However, it has been shown that a short incubation in water above 70°C will reversibly break the interaction without denaturing streptavidin, allowing re-use of the streptavidin solid support. A further application is the so called Strep-tag, which is an optimized system for the purification and detection of proteins. Streptavidin is widely used in Western blotting and immunoassays conjugated to some reporter molecule, such as horseradish peroxidase.
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How to find Myoglobin from equine skeletal muscle?

Myoglobin from equine skeletal muscle
Quality Level  PREMIUM
assay 95-100%
form essentially salt-free, lyophilized powder
mol wt mol wt ~17 kDa(lit.)
Iron content ~0.30%
storage temp. −20°C
Biochem/physiol Actions
Myoglobin is critical to skeletal muscle O2 supply at near-maximum oxygen demand, and prevents anoxia by maintaining PO2 above levels needed to support mitochondrial function.
Application
Myoglobin is used as a molecular weight marker and a standard for Mass Spectroscopy and X-Ray crystallography.
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What is Creatinase?

In enzymology, a Creatinase (EC 3.5.3.3) is an enzyme that catalyzes the chemical reaction
creatine + H2O \rightleftharpoons sarcosine + urea
Thus, the two substrates of this enzyme are creatine and H2O, whereas its two products are sarcosine and urea.
The native enzyme was shown to be made up of two subunit monomers via SDS-polyacrylamide gel electrophoresis. The molecular weights of these subunits was estimated to be 47,000 g/mol. The enzyme works as a homodimer, and is induced by choline chloride. Each monomer of creatinase has two clearly defined domains, a small N-terminal domain, and a large C-terminal domain. Each of the two active sites is made by residues of the large domain of one monomer and some residues of the small domain of the other monomer. It's been suggested that a sulfhydryl group is located on or near the active site of the enzyme following inhibition experiments. Creatinase has been found to be most active at pH 8 and is most stable between ph 6-8 for 24 hrs. at 37 degrees.
This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in linear amidines. The systematic name of this enzyme class is creatine amidinohydrolase. This enzyme participates in arginine and proline metabolism.
Creatinase or creatine amidinohydrolase catalyses the conversion of creatine and water to sarcosine and urea. The enzyme works as a homodimer, and is induced by choline chloride. Each monomer of creatinase has two clearly defined domains, a small N-terminal domain, and a large C-terminal domain.
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Functions of GLUT-1 (glucose transporter protein-1)

Glucose transporter 1 (GLUT1), also known as solute carrier family 2, facilitated glucose transporter member 1 (SLC2A1) is a protein that in humans is encoded by the SLC2A1 gene. GLUT1 facilitates the transport of glucose across the plasma membranes of mammalian cells.
Structure
GLUT1 behaves as a Michaelis-Menten enzyme and contains 12 membrane-spanning alpha helices, each containing 20 amino acid residues. A helical wheel analysis shows that the membrane spanning alpha helices are amphipathic, with one side being polar and the other side hydrophobic. Six of these membrane spanning helices are believed to bind together in the membrane to create a polar channel in the center through which glucose can traverse, with the hydrophobic regions on the outside of the channel adjacent to the fatty acid tails of the membrane.
Function
Energy-yielding metabolism in erythrocytes depends on a constant supply of glucose from the blood plasma, where the glucose concentration is maintained at about 5mM. Glucose enters the erythrocyte by facilitated diffusion via a specific glucose transporter, at a rate about 50,000 times greater than uncatalyzed transmembrane diffusion. The glucose transporter of erythrocytes (called GLUT1 to distinguish it from related glucose transporters in other tissues) is a type III integral protein with 12 hydrophobic segments, each of which is believed to form a membrane-spanning helix. The detailed structure of GLUT1 is not known yet, but one plausible model suggests that the side-by-side assembly of several helices produces a transmembrane channel lined with hydrophilic residues that can hydrogen-bond with glucose as it moves through the channel.
GLUT-1 (glucose transporter protein-1) is responsible for the low-level of basal glucose uptake required to sustain respiration in all cells. Expression levels of GLUT1 in cell membranes are increased by reduced glucose levels and decreased by increased glucose levels.
GLUT1 is also a major receptor for uptake of Vitamin C as well as glucose, especially in non vitamin C producing mammals as part of an adaptation to compensate by participating in a Vitamin C recycling process. In mammals that do produce Vitamin C, GLUT4 is often expressed instead of GLUT1.
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Where to find Equine antibody?

Equine is a genus of animals in the family Equidae that includes horses, donkeys, and zebras. Within Equidae, Equus is the only extant genus. Like Equidae more broadly, Equus has numerous extinct species known only from fossils. This article deals primarily with the extant species.
Characteristics
Equines are medium to large mammals, with long heads, and necks with a mane. Their legs are slender and end in a single, unguligrade toe, protected by a horny hoof. They have long, slender tails, either ending in a tuft, or entirely covered in flowing hair. They are adapted to generally open terrain, from plains and savannas, to mountains or deserts.
The range of equine monocular vision. Shaded areas represent blind spots.
The pinnae (outer ears) of equines are mobile, enabling them to easily localise the origin of sounds. They have two-color, or dichromatic vision. Their eyes are set back far on the head, giving them a wide angle of view, without entirely losing binocular vision. Equines also have a vomeronasal organ, that allows males to use the flehmen, or 'lip-curling' response to assess the sexual state of potential mates. Equines are one of only two mammals (the other is the human) capable of producing copious sweat perspiration for thermoregulatory cooling, enabling fast running over long distances.
Equines are herbivores, and feed predominantly on tough, fibrous food, such as grasses and sedges. When in need, they will also eat other vegetable matter, such as leaves, fruits, or bark, but are normally grazers, not browsers. Unlike ruminants, with their complex stomachs, equines break down cellulose in the "hindgut" or caecum, a part of the colon. Their dentition is almost complete, with cutting incisors to crop food, and grinding molars set well back behind a diastema.
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What is PEP-carboxylase?

Phosphoenolpyruvate carboxylase (also known as PEP carboxylase, PEPCase, or PEPC; EC 4.1.1.31) is an enzyme in the family of carboxy-lyases that catalyzes the addition of bicarbonate to phosphoenolpyruvate (PEP) to form the four-carbon compound oxaloacetate: PEP + HCO3- → oxaloacetate + Pi
This reaction is used for carbon fixation in so-called "CAM" and "C4" plants where it plays a key role in photosynthesis. The enzyme is also found in some bacteria, but not in animals or fungi.
PEP-carboxylase in photosynthesis
After conversion of CO2 to bicarbonate by carbonic anhydrase, PEP carboxylase assimilates the available bicarbonate into a four-carbon compound (oxaloacetate, which is further converted to malate) that can be stored or shuttled between plant cells. This allows for a separation of initial carbon fixation by contact with air and secondary carbon fixation into sugars by RuBisCO during the light-independent reactions of photosynthesis.
In succulent CAM plants adapted for growth in very dry conditions, PEP carboxylase fixes bicarbonate during the night when the plant opens its stomata to allow for gas exchange. During the day time, the plant closes the stomata to preserve water and releases CO2 inside the leaf from the storage compounds produced during the night. This allows the plants to thrive in dry climates by conducting photosynthesis without losing water through open stomata during the day.
In C4 plants, for example maize, PEP carboxylase fixes bicarbonate in the mesophyll cells of the leaf and the resulting four-carbon compound, malate, is shuttled into the bundle sheath cells where it releases CO2 for fixation by RuBisCO. Thus, the two processes are separated spatially, allowing for RuBisCO to operate in a low-oxygen environment to circumvent photorespiration. Photorespiration occurs due to the inherent oxygenase activity of RuBisCO in which the enzyme uses oxygen instead of carbon dioxide without incorporating carbon into sugars or generating ATP. As such, it is a wasteful reaction for the plant. By comparison, C4 carbon fixation via PEP carboxylase is more efficient.
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What is Glutathione Peroxidase/Catalase?

Glutathione Peroxidase/Catalase (GPx) is the general name of an enzyme family with peroxidase activity whose main biological role is to protect the organism from oxidative damage. The biochemical function of glutathione peroxidase is to reduce lipid hydroperoxides to their corresponding alcohols and to reduce free hydrogen peroxide to water.
Structure
Mammalian GPx1, GPx2, GPx3, and GPx4 have been shown to be selenium-containing enzymes, whereas GPx6 is a selenoprotein in humans with cysteine-containing homologues in rodents. GPx1, GPx2, and GPx3 are homotetrameric proteins, whereas GPx4 has a monomeric structure. As the integrity of the cellular and subcellular membranes depends heavily on glutathione peroxidase, the antioxidative protective system of glutathione peroxidase itself depends heavily on the presence of selenium.
Reaction mechanism
The mechanism is at the selenocysteine site, which is in a Se(-) form as resting state. This is oxidized by the peroxide to SeOH, which then reacts with a GSH molecule to form GS-Se and water, and then by another GSH molecule to from Se(-) again, releasing GS-SG as the by-product.
Role in disease
Genetic polymorphisms in Glutathione Peroxidase enzymes and their altered expressions and activities are associated with oxidative DNA damage and, as a result, the individual’s risk of cancer susceptibility.
Catalase is a common enzyme found in nearly all living organisms exposed to oxygen. It catalyzes the decomposition of hydrogen peroxide to water and oxygen. It is a very important enzyme in reproductive reactions. Likewise, catalase has one of the highest turnover numbers of all enzymes; one catalase molecule can convert millions of molecules of hydrogen peroxide to water and oxygen each second.
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Specifications of Anti-American Hamster Antibody

Anti-American Hamster Antibody
Specification: 96T 48T 0.1ml 0.2ml 1ml
Product Description:
Anti-American Hamster Antibody; Anti-mouse Secondary Antibody
IgG（γ）（Human Adsorbed）; IgGa; IgGb; IgGc; Goat Secondary Antibodies
Bovine Secondary Antibodies; Canine Secondary Antibodies
M2aFPT; M3F2aP1T; Mouse IgG2a-FITC/Mouse IgG2b-PE; M1FP Mouse IgG1-FITC/Mouse IgG1-PE; GIC201-50; M1PGF; M2aF1P; Rat IgM; Rat IgM，k
American Hamster IgG; Rat IgG2a; Rat IgG2a，k; Mouse IgG3; Mouse IgM，k
Rat IgG1; Rat IgG1，k; Mouse IgG2a，k
CD3/CD4/CD8（human）; CD3/CD16/CD56（human）; CD3/CD（16+56）/CD45（human）; CD3/CD79a/Myeloperoxidase（human; CD4/CD8/CD25（human）
CD19/IgA/IgM（human）; CD19/IgG/IgD（human）; CD19/IgM/IgD（human）
CD19/Kappa/Lambda（human）; CD45/CD14/HLA-DR（human）; CD45/CD55/CD59（human）; CD55/CD59/Glycophorin A（human）; CD8/HLA-DR（human）
B Lymphocyte subpopulation; B+T subpopulations
Basophils，CD4+T subpopulation; Granulocytes; Leukocyte（Pan）
Lymphocyte（Pan), Lymphocyte＆Macrophages, MHC class Ⅰ, MHC class Ⅱ, T Lymphocytes, T Lymphocytes+Neutrophils
Anti-American Hamster Antibody is a available form stock
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Where to get 2-Chlorotrityl chloride resin?

2-Chlorotrityl chloride resin adhesive is an acerbic labile adhesive for peptide amalgam application Fmoc amino acids. The steric aggregate and balmy acerbic altitude for break accomplish 2-chlorotrityl resins advantageous in abounding applications. The steric aggregate of the 2-chlorotrityl adhesive prevents diketopiperazide accumulation during the adapter of the aboriginal two Fmoc amino acids, a austere botheration in the amalgam of Fmoc-Pro C-terminal and Fmoc-Pro-Xxx C-terminal peptides. Additionally, Fmoc-amino acids can be absorbed to 2-chlorotrityl chloride adhesive with about no racemization. Amino acerbic 2-chlorotrityl resins can be alternatives to Fmoc amino acerbic Wang resins area racemization of the aboriginal Fmoc amino acerbic is accepted as with Cys and His. Since peptide articles can be broken from the adhesive with actual balmy acerbic treatment, 2-chlorotrityl chloride adhesive can be acclimated to adapt adequate peptide bits for fragment abstract amalgam of ample peptides and proteins.
2-Chlorotrityl chloride resin is damp sensitive. It have to be stored in a deeply closed alembic or dessicator. If 2-chlorotrityl chloride adhesive is stored at low temperatures, the alembic have to be accustomed to balmy to allowance temperature afore opening. Depending on the admeasurement of the alembic and the bulk of 2 chlorotrityl chloride resin, this could yield up to two hours. For abiding storage, the 2-chlorotrityl chloride adhesive alembic should be ablaze with nitrogen or argon afore sealing, again the 2-chlorotrityl chloride adhesive should be stored at -20°C.
2-Chlorotrity chloride resin is slightly less acid-labile than Trityl Resin and thus more widely used in solid phase peptide synthesis. This resin has been also widely used in solid phase organic synthesis by immobilizing carboxylic acid, alcohols, phenols, amines, imidazoles, hydroxylamines, and thiols on it. Cleavage is achieved using AcOH/TFE/DCM, 0.5% TFA or HFIP in DCM, or 1-5% TFA in DCM containing 5% TIS. Trityl linkers have certain advantages in comparison to the alkoxybenzyl alcohol (eg. Wang resin), especially in the area of peptide chemistry. First, the problem of racemization during the loading of the first amino acid (using DIPEA) is avoided with trityl linkers. Second, due to steric factors, no diketopiperazine formation is observed.
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Side effects of 5-Fluorouracil

5-Fluorouracil is an anti-cancer ("antineoplastic" or "cytotoxic") chemotherapy drug.  5-fluorouracil is classified as an "antimetabolite."
Use
Colon and rectal cancer.
Breast cancer.
Gastrointestinal cancers including: anal, esphageal, pancreas and gastric (stomach).
Head and neck cancer
Hepatoma (liver cancer).
Ovarian cancer.
Topical use (cream or solution) in basal cell cancer of the skin and actinic keratoses. -see document fluorouracil(cream).
Side effects of 5-Fluorouracil
Important things to remember about the side effects of fluorouracil:
Most people do not experience all of the side effects listed.
Side effects are often predictable in terms of their onset and duration.
Side effects are almost always reversible and will go away after treatment is complete.
There are many options to help minimize or prevent side effects.
There is no relationship between the presence or severity of side effects and the effectiveness of the medication.
The side effects of fluorouracil and their severity depend a variety of factors including dosage, the individual's metabolism, other drugs given as part of a combination therapy, and/or the schedule and duration of treatment.
Fluorouracil (5-FU or f5U) (sold beneath the cast names Adrucil, Carac, Efudix, Efudex and Fluoroplex) is a biologic that is a pyrimidine analog which is acclimated in the analysis of cancer. It is a suicide inhibitor and works through irreversible inhibition of thymidylate synthase. It belongs to the ancestors of drugs alleged antimetabolites. It is about administered with leucovorin.
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What is Pullulanase?

Pullulanase is a specific affectionate of glucanase, an amylolytic exoenzyme, that degrades pullulan. It is produced as an extracellular, corpuscle surface-anchored lipoprotein by Gram-negative bacilli of the brand Klebsiella. Blazon I pullulanases accurately advance α-1,6 linkages, while blazon II pullulanases are aswell able to hydrolyse α-1,4 linkages. It is aswell produced by some added bacilli and archaea. Pullulanase is acclimated as a processing aid in atom processing biotechnology (production of booze and sweeteners).
Pullulanase is aswell accepted as pullulan-6-glucanohydrolase (Debranching enzyme). Its substrate, pullulan, is admired as a alternation of maltotriose units affiliated by alpha-1,6-glycosidic bonds. Pullulanase will hydrolytically carve pullulan (alpha-glucan polysaccharides).
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What is Myoglobin from equine skeletal muscle?

Biochem/physiol Actions of Myoglobin from equine skeletal muscle
Myoglobin is analytical to ashen beef O2 accumulation at near-maximum oxygen demand, and prevents anoxia by advancement PO2 aloft levels bare to abutment mitochondrial function.
Application
Myoglobin is acclimated as a atomic weight brand and a accepted for Mass Spectroscopy and X-Ray crystallography.
Biochem/physiol Actions
Myoglobin is analytical to ashen beef O2 accumulation at near-maximum oxygen demand, and prevents anoxia by advancement PO2 aloft levels bare to abutment mitochondrial function.
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What is Influenza B (Hemagglutinin)?

Influenza (flu) is a respiratory infection in mammals and birds. This virus is disconnected into three capital types (A, B and C). Affliction A is begin in a advanced array of bird and mammal species. Affliction B is abundantly bedfast to bodies and is an important could cause of morbidity. Affliction C infects humans, dogs and pigs, sometimes causing both astringent affliction and bounded epidemics. Affliction A is added disconnected into subtypes based on differences in the film proteins hemagglutinin (HA) and neuraminidase (NA). The characters HhNn is acclimated to accredit to the subtype absolute the hth apparent HA protein and the nth apparent NA protein. The HA is a trimer with a receptor bounden abridged on the annular arch of anniversary monomer. Subtypes are added disconnected into strains. Anniversary genetically audible virus abstract is usually advised to be a abstracted strain. Affliction B bacilli are alone accepted to affect bodies and seals, giving them influenza. This bound host ambit is allegedly amenable for the abridgement of Affliction virus B acquired affliction pandemics in adverse with those acquired by the morphologically agnate Affliction virus A as both adapt by both abiogenetic alluvion and reassortment. Affliction B bacilli advance slower than A bacilli and faster than C viruses. Affliction B virus mutates at a amount 2 to 3 times lower than blazon A. However, affliction B mutates abundant that abiding amnesty is not possible.
Influenzavirus B is a brand in the virus ancestors Orthomyxoviridae. The alone breed in this brand is alleged "Influenza B virus".
Influenza B (Hemagglutinin) bacilli are alone accepted to affect bodies and seals, giving them influenza. This bound host ambit is allegedly amenable for the abridgement of Influenzavirus B-caused affliction pandemics in adverse with those acquired by the morphologically agnate Influenzavirus A as both adapt by both abiogenetic alluvion and reassortment.
The Affliction B virus genome is 14648 nucleotides continued and consists of eight segments of beeline negative-sense, single-stranded RNA. The multipartite genome is encapsidated, anniversary articulation in a abstracted nucleocapsid, and the nucleocapsids are amidst by one envelope.
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Functions of Adiponectin

Adiponectin (also referred to as GBP-28, apM1, AdipoQ and Acrp30) is a protein which in humans is encoded by the ADIPOQ gene.
Structure
Adiponectin is a 244-amino-acid-long polypeptide. There are four distinct regions of adiponectin. The first is a short signal sequence that targets the hormone for secretion outside the cell; next is a short region that varies between species; the third is a 65-amino acid region with similarity to collagenous proteins; the last is a globular domain. Overall this gene shows similarity to the complement 1Q factors (C1Q). However, when the 3-dimensional structure of the globular region was determined, a striking similarity to TNFα was observed, despite unrelated protein sequences.
Function
Adiponectin is a protein hormone that modulates a number of metabolic processes, including glucose regulation and fatty acid catabolism. Adiponectin is exclusively secreted from adipose tissue (and also from the placenta in pregnancy) into the bloodstream and is very abundant in plasma relative to many hormones. Levels of the hormone are inversely correlated with body fat percentage in adults, while the association in infants and young children is less clear. Transgenic mice with increased adiponectin show impaired adipocyte differentiation and increased energy expenditure associated with protein uncoupling. The hormone plays a role in the suppression of the metabolic derangements that may result in type 2 diabetes, obesity, atherosclerosis, non-alcoholic fatty liver disease (NAFLD) and an independent risk factor for metabolic syndrome. Adiponectin in combination with leptin has been shown to completely reverse insulin resistance in mice.
Adiponectin is secreted into the bloodstream where it accounts for approximately 0.01% of all plasma protein at around 5-10 μg/mL. Plasma concentrations reveal a sexual dimorphism, with females having higher levels than males. Levels of adiponectin are reduced in diabetics compared to non-diabetics. Weight reduction significantly increases circulating levels.
Adiponectin automatically self-associates into larger structures. Initially, three adiponectin molecules bind together to form a homotrimer. The trimers continue to self-associate and form hexamers or dodecamers. Like the plasma concentration, the relative levels of the higher-order structures are sexually dimorphic, where females have increased proportions of the high-molecular weight forms. Recent studies showed that the high-molecular weight form may be the most biologically active form regarding glucose homeostasis. High-molecular-weight adiponectin was further found to be associated with a lower risk of diabetes with similar magnitude of association as total adiponectin.
Adiponectin exerts some of its weight reduction effects via the brain. This is similar to the action of leptin, but the two hormones perform complementary actions, and can have additive effects.
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Uses of ConA

 

Concanavalin A (ConA) is a lectin (carbohydrate-binding protein) originally extracted from the jack-bean, Canavalia ensiformis. It is a member of the legume lectin family. It binds specifically to certain structures found in various sugars, glycoproteins, and glycolipids, mainly internal and nonreducing terminal α-D-mannosyl and α-D-glucosyl groups. ConA is a plant mitogen, and is known for its ability to stimulate mouse T-cell subsets giving rise to four functionally distinct T cell populations, including precursors to suppressor T-cell; one subset of human suppressor T-cells as well is sensitive to ConA. ConA was the first lectin to be available on a commercial basis, and is widely used in biology and biochemistry to characterize glycoproteins and other sugar-containing entities on the surface of various cells. It is also used to purify glycosylated macromolecules in lectin affinity chromatography, as well as to study immune regulation by various immune cells.
Properties of ConA
As most lectins, the ConA is a homotetramer: each sub-unit (26.5KDa, 235 amino-acids, heavily glycated) binds a metallic atom (usually Mn2+ and a Ca2+). Its tertiary structure has been elucidated, and molecular basis of its interactions with metals, its affinity for the mannose and glucose are well known.
ConA binds specifically α-D-mannosyl and α-D-glucosyl residues (two hexoses differing only by the alcohol on carbon 2) in terminal position of ramified structures from B-Glycans (reach in α-mannose, or hybrid and bi-antennary glycanes complexes). It has 4 binding sites, corresponding to the 4 sub-units. The molecular weight is 104-112KDa and the isoelectric point (pI) is in the range of 4.5-5.5.
Concanavalin A has a low-frequency wave number of 20 cm−1 in its Raman spectra. This emission has been assigned to the breathing motion of the beta barrel consisting of 14 beta-strands in the concanavalin A molecule.
ConA can also initiate cell division (mitogenesis) principally acting on T-lymphocytes, by stimulating the energy metabolism of thymocytes within seconds of exposure.
Biological activity
Concanavalin A interacts with diverse receptors containing mannose carbohydrates, notably rhodopsin, blood group markers, insulin-receptor[12] the Immunoglobulins and the carcino-embryonary antigen (CEA). It also interacts with lipoproteins.
ConA agglutinates strongly erythrocytes irrespective of blood-groups, and various cancerous cells. It was demonstrated that transformed cells and trypsin-treated normal cells do not agglutinate at 4°C, thereby initiate suggesting that there is a temperature-sensitive step involved in ConA-mediated agglutination.
ConA-mediated agglutination of other cell types has been reported, including muscle cells (myocytes), B-lymphocytes (through surface Immunoglobulins), fibroblasts, rat thymocytes, human fetal (but not adult) intestinal epithelial cells, and adipocytes. ConA is a also a lymphocyte mitogen.
ConA interacts with the surface mannose residues of many microbes, like the bacteria E. coli, and Bacillus subtilis and the protist Dictyostelium discoideum.
It has also been shown as a stimulator of several matrix metalloproteinases (MMPs).
ConA has proven useful in applications requiring solid-phase immobilization of glycoenzymes, especially those have proved difficult to immobilize by the traditional covalent coupling. Using ConA-couple matrices, such enzymes may be immobilized in high quantities without a concurrent loss of activity and/or stability. Such noncovalent ConA-glycoenzyme couplings may be relatively easily reversed by competition with sugars or at acidic pH. If necessary for certain applications, these couplings can be converted to covalent bindings by chemical manipulation.
A recent (2009) report from Taiwan demonstrated potent therapeutic effect of ConA against experimental hepatoma (liver cancer); in the study by Lei and Chang, ConA was found to be sequestered more by hepatic tumor cells, in preference to surrounding normal hepatocytes. Internalization of ConA occurs preferentially to the mitochondria after binding to cell membrane glycoproteins, which triggers an autophagic cell death. ConA was found to partially inhibit tumor nodule growth independent of its lymphocyte activation; the eradication of the tumor in the murine in situ hepatoma model in this study was additionally attributed to the mitogenic/lymphoproliferative action of ConA that may have activated a CD8+ T-cell-mediated, as well as NK- and NK-T cell-mediated, immune response in the liver.
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What is Bialophos?

Bialophos is a tripeptide antibiotic and herbicide naturally produced by a few species of the soil bacteria, Streptomyces. It is made up of two alanine residues and the glutamic acid analog phosphinothricin and is commonly used as a gene sector in plants.  Resistance plasmids include: pGreenII 0229 and pGreenII 0229 62-SK. pGreenII 0229 is derived from pGreenII 0000, a nos-bar cassette has been inserted into the HpaI site of the Left Border, providing resistance to bialaphos or phosphinothricin during plant transformation selection. pGreenII 0229 62-SK is derived from pGreenII 0229, the LacZ blue/white cloning selection has been replaced with a 35S-MCS-CaMV cassette that allows the insertion of a gene of interest into a 35S over-expression cassette.
Bialophos is a linear tripeptide produced as a secondary metabolite by Streptomyces hygroscopicus. The structure is PT-Ala-Ala, where PT is the glutamate analog, phosphinothricin. After hydrolysis of bialaphos by intracellular nonspecific peptidases, PT acts as an inhibitor of glutamate-ammonia ligase (glutamine synthetase), and thereby derives herbicide and antibiotic activities.
Bialaphos (L-alanyl-L-ALANYL-phosphinothricin) is consisting a natural Tripeptid of the amino acids alanine and Phosphinothricin. Bialaphos was isolated as product from two different Streptomyceten living in the soil (Streptomyces hygroscopicus and Streptomyces of viridochromogenes). Bialaphos has herbicides characteristics, which decrease/go back to the biologically active Phosphinothricin group.
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