Protein Information

Name glutamine transaminase K
Synonyms CCBL 1; CCBL1; CCBL1 protein; Cysteine conjugate beta lyase; Cysteine S conjugate beta lyase; GTK; Glutamine phenylpyruvate aminotransferase; Glutamine transaminase K…

Compound Information

Name sulfur
CAS sulfur

Reference List

PubMed Abstract RScore(About this table)
20306345 Cooper AJ, Krasnikov BF, Niatsetskaya ZV, Pinto JT, Callery PS, Villar MT, Artigues A, Bruschi SA: Cysteine S-conjugate beta-lyases: important roles in the metabolism of naturally occurring sulfur and selenium-containing compounds, xenobiotics and anticancer agents. Amino Acids. 2010 Mar 22.
87(1,1,1,7) Details
19572755 Barshteyn N, Elfarra AA: Cysteine conjugate beta-lyase activity of rat erythrocytes and formation of beta-lyase-derived globin monoadducts and cross-links after in vitro exposure of erythrocytes to S-(1,2-dichlorovinyl)-L-cysteine. Chem Res Toxicol. 2009 Jul;22(7):1351-8.

Adducts and cross-links in which the sulfur atom of the reactive sulfur intermediates were replaced by oxygen have also been detected.
2(0,0,0,2) Details
19584079 Lee JI, Nian H, Cooper AJ, Sinha R, Dai J, Bisson WH, Dashwood RH, Pinto JT: Alpha-keto acid metabolites of naturally occurring organoselenium compounds as inhibitors of histone deacetylase in human prostate cancer cells. Cancer Prev Res (Phila Pa). 2009 Jul;2(7):683-93.

In a cell-free system, glutamine transaminase K (GTK) and L-amino acid oxidase convert MSC to the corresponding alpha-keto acid, beta-methylselenopyruvate (MSP), and L-amino acid oxidase converts selenomethionine to its corresponding alpha-keto acid, alpha-keto-gamma-methylselenobutyrate (KMSB).
Although methionine (sulfur analogue of selenomethionine) is an excellent substrate for GTK, selenomethionine is poorly metabolized.
1(0,0,0,1) Details