Alexa Fluor® 488 Anti-Cystathionase/CTH antibody [EPR29620-93],Abcam,AB325378

Target data Catalyzes the last step in the trans-sulfuration pathway from L-methionine to L-cysteine in a pyridoxal-5'-phosphate (PLP)-dependent manner, which consists on cleaving the L,L-cystathionine molecule into L-cysteine, ammonia and 2-oxobutanoate. Part of the L-cysteine derived from the trans-sulfuration pathway is utilized for biosynthesis of the ubiquitous antioxidant glutathione. Besides its role in the conversion of L-cystathionine into L-cysteine, it utilizes L-cysteine and L-homocysteine as substrates (at much lower rates than L,L-cystathionine) to produce hydrogen sulfide (H2S). In vitro, it converts two L-cysteine molecules into lanthionine and H2S, and two L-homocysteine molecules to homolanthionine and H2S, which can be particularly relevant under conditions of severe hyperhomocysteinemia. Lanthionine and homolanthionine are structural homologs of L,L-cystathionine that differ by the absence or presence of an extra methylene group, respectively (By similarity). Acts as a cysteine-protein sulfhydrase by mediating sulfhydration of target proteins : sulfhydration consists of converting -SH groups into -SSH on specific cysteine residues of target proteins such as GAPDH, PTPN1 and NF-kappa-B subunit RELA, thereby regulating their function (PubMed : 19903941, PubMed : 22244329). By generating the gasotransmitter H2S, it participates in a number of physiological processes such as vasodilation, bone protection, and inflammation (By similarity) (PubMed : 18948540). Plays an essential role in myogenesis by contributing to the biogenesis of H2S in skeletal muscle tissue (PubMed : 33826201). Can also accept homoserine as substrate (By similarity). Catalyzes the elimination of selenocystathionine (which can be derived from the diet) to yield selenocysteine, ammonia and 2-oxobutanoate (By similarity). See full target information Cth Additional targets Cth