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Glutaminase Protein glutaminase (PG, EC 3.5.1.44) can deamidate glutamine residues in proteins to glutamate residues. This entry represents the mature PG enzyme which bears partial homology to factor XIII-like Transglutaminase (TG), especially its Cys-His-Asp catalytic triad. A similar triad (Cys-His-Asn) is also shared by some cysteine proteases such as papain and actinidin. The mature PG is a monomer enzyme consisting of 185 amino acid residues. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",