ID 3.5.1.43 DE peptidyl-glutaminase. AN peptidoglutaminase I. CA [protein]-C-terminal-L-glutamine + H2O = [protein]-C-terminal-L-glutamate CA + NH4(+). CC -!- Specific for the hydrolysis of the gamma-amide of glutamine CC substituted at the alpha-amino group, e.g., glycyl-L-glutamine, CC N-acetyl-L-glutamine and L-leucylglycyl-L-glutamine. //