label: protein-glutamic acid ligase activity, elongating
label_lc: protein-glutamic acid ligase activity, elongating
description: "Catalytic reaction :(L-glutamyl)n-L-gamma-glutamyl-L-glutamyl-[protein] + ATP + L-glutamate = (L-glutamyl)n+1-L-gamma-glutamyl-L-glutamyl-[protein] + ADP + H+ + phosphate."