enzyme- any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions ribonuclease,ribonucleinase,RNase- a transferase that catalyzes the hydrolysis of ribonucleic acid aminopherase,aminotransferase,transaminase- a class of transferases that catalyze tra...
γ-glutamyltranspeptidase (GGT) is a bi-substrate enzyme conserved in all three domains of life. It catalyzes the cleavage and transfer of γ-glutamyl moiety of glutathione to either water (hydrolysis) or substrates like peptides (transpeptidation). GGTs
RNA blots and analysis of enzyme activity in knockout mutants suggest that GGT1 is expressed most strongly in leaves but is found throughout the plant. A GGT1::GUS fusion construct showed expression only in vascular tissue, specifically the phloem of the mid-rib and minor veins of leaves, ...