L-Asparaginase type 2-like enzymes of the NTN-hydrolase superfamily
This family includes Glycosylasparaginase, Taspase 1, and L-Asparaginase type 2 enzymes. Glycosylasparaginase catalyzes the hydrolysis of the glycosylamide bond of asparagine-linked glycoprotein. Taspase1 catalyzes the cleavage of the Mix Lineage Leukemia (MLL) nuclear protein and transcription factor TFIIA. L-Asparaginase type 2 hydrolyzes L-asparagine to L-aspartate and ammonia. The proenzymes of this family undergo autoproteolytic cleavage before a threonine to generate alpha and beta subunits. The threonine becomes the N-terminal residue of the beta subunit and is the catalytic residue. The family is circularly permuted relative to other NTN-hydrolase families.
Jiyao W et al.(2023). "The conserved domain database in 2023.",