1APY
HUMAN ASPARTYLGLUCOSAMINIDASE
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
B | 3.60.20.30 | Alpha Beta | 4-Layer Sandwich | Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1 | (Glycosyl)asparaginase | CATH (4.3.0) |
D | 3.60.20.30 | Alpha Beta | 4-Layer Sandwich | Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1 | (Glycosyl)asparaginase | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF01112 | Asparaginase (Asparaginase_2) | Asparaginase | Domain | ||
PF01112 | Asparaginase (Asparaginase_2) | Asparaginase | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily | |
IPR000246 | Peptidase T2, asparaginase 2 | Family | |
IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily | |
IPR000246 | Peptidase T2, asparaginase 2 | Family |
Pharos: Disease Associations Pharos Homepage Annotation
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
N4-(beta-N-acetylglucosaminyl)-L-asparaginase M-CSA #266 | Aspartylglucosylaminidase hydrolyses the bonds connecting N-linked oligosaccharides to free (not peptide bonded) asparagine residues. This is an important lysosomal function. Aspartylglucosylaminidase is synthesised as a precursor protein which is activated by proteolytic cleavage between Asp 182 and Thr 183 to generate the required N-terminal threonine residue. The cleavage generates the alpha and beta subunits of the (alpha)2(beta)2 heterotetramer. The cleavage event is thought to be autocatalytic, and many of the residues involved in the normal glucosylaminidase are believed to be involved in the autocatalytic reaction. The Thr 183 side chain, for example, functions as a nucleophile in both [PMID:14616088]. | Defined by 6 residues: SER:A-49THR:B-1 [auth B-183]THR:B-19 [auth B-201]ARG:B-29 [auth B-211]THR:B-52 [auth B-234]GLY:B-53 [auth B-235] | EC: 3.5.1.26 (PDB Primary Data) |