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Gamma-glutamyl cyclotransferase

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Gamma-glutamyl cyclotransferase-like protein; part of the gene cluster that mediates the biosynthesis of gliotoxin, a member of the epipolythiodioxopiperazine (ETP) class of toxins characterized by a disulfide bridged cyclic dipeptide .

Below are the list of possible Gamma-glutamyl cyclotransferase products. If you cannot find the target and/or product is not available in our catalog, please click here to contact us and request the product or submit your request for custom elisa kit production, custom recombinant protein production or custom antibody production. Custom ELISA Kits, Recombinant Proteins and Antibodies can be designed, manufactured and produced according to the researcher's specifications.
 

Gamma-glutamyl cyclotransferase gliK

 Gamma-glutamyl cyclotransferase gliK ELISA Kit
 Gamma-glutamyl cyclotransferase gliK Recombinant
 Gamma-glutamyl cyclotransferase gliK Antibody
Also known as Gamma-glutamyl cyclotransferase gliK (GGCT gliK) (Gliotoxin biosynthesis protein K).
Gamma-glutamyl cyclotransferase-like protein; part of the gene cluster that mediates the biosynthesis of gliotoxin, a member of the epipolythiodioxopiperazine (ETP) class of toxins characterized by a disulfide bridged cyclic dipeptide (PubMed:15979823, PubMed:21612254). The first step in gliotoxin
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biosynthesis is the condensation of serine and phenylalanine to form the cyclo-L-phenylalanyl-L-serine diketopiperazine (DKP) by the NRPS gliP (PubMed:17154540, PubMed:21612254). GliP is also able to produce the DKP cyclo-L-tryptophanyl-L-serine, suggesting that the substrate specificity of the first adenylation (A) domain in gliP is sufficiently relaxed to accommodate both L-Phe and L-Trp (PubMed:23434416). The cytochrome P450 monooxygenase gliC has been shown to catalyze the subsequent hydroxylation of the alpha-carbon of L-Phe in cyclo-L-phenylalanyl-L-serine whereas the second cytochrome P450 enzyme, gliF, is presumably involved in the modification of the DKP side chain (PubMed:24039048, PubMed:23434416). The glutathione S-transferase (GST) gliG then forms a bis-glutathionylated biosynthetic intermediate which is responsible for the sulfurization of gliotoxin (PubMed:21513890, PubMed:21749092). This bis-glutathionylated intermediate is subsequently processed by the gamma-glutamyl cyclotransferase gliK to remove both gamma-glutamyl moieties (PubMed:22903976, PubMed:24039048). Subsequent processing via gliI yields a biosynthetic intermediate, which is N-methylated via the N-methyltransferase gliN, before the gliotoxin oxidoreductase gliT-mediated disulfide bridge closure (PubMed:20548963, PubMed:22936680, PubMed:24039048, PubMed:25062268). GliN-mediated amide methylation confers stability to ETP, damping the spontaneous formation of tri- and tetrasulfides (PubMed:25062268). Intracellular dithiol gliotoxin oxidized by gliT is subsequently effluxed by gliA (PubMed:26150413). Gliotoxin contributes to pathogenesis during invasive aspergillosis (PubMed:17601876, PubMed:18199036). In macrophages and neutrophils, gliotoxin showed inhibition of various different cell functions including cytokine production, antigen presentation, phagocytosis, and production of reactive oxygen species (PubMed:17601876).
 gliK ELISA Kit
 gliK Recombinant
 gliK Antibody
 AFUA_6G09700 ELISA Kit
 AFUA_6G09700 Recombinant
 AFUA_6G09700 Antibody
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