Annotations: 5UN9

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	NAGidase	e5un9A1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: NAGidase	ECOD (1.6)
B	NAGidase	e5un9B1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: NAGidase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (4.3.0)
B	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF07555	beta-N-acetylglucosaminidase (NAGidase)	beta-N-acetylglucosaminidase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Protein O-GlcNAcase	hydrolase activity, acting on glycosyl bonds hexosaminidase activity beta-N-acetylhexosaminidase activity beta-N-acetylglucosaminidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity [protein]-3-O-(N-acetyl-D-glucosaminyl)-L-serine/L-threonine O-N-acetyl-alpha-D-glucosaminase activity catalytic activity, acting on a protein hyalurononglucosaminidase activity identical protein binding protein binding binding	macromolecule modification protein deglycosylation carbohydrate derivative metabolic process metabolic process primary metabolic process protein metabolic process macromolecule metabolic process protein modification process glycoprotein metabolic process carbohydrate derivative catabolic process glycoprotein catabolic process catabolic process protein catabolic process macromolecule catabolic process macromolecule modification protein deglycosylation carbohydrate derivative metabolic process metabolic process primary metabolic process protein metabolic process macromolecule metabolic process protein modification process glycoprotein metabolic process carbohydrate derivative catabolic process glycoprotein catabolic process catabolic process protein catabolic process macromolecule catabolic process carbohydrate derivative biosynthetic process cellular biosynthetic process cellular metabolic process glycoprotein biosynthetic process protein glycosylation macromolecule biosynthetic process biosynthetic process glycosylation macromolecule glycosylation protein O-linked glycosylation cellular process amino sugar metabolic process N-acetylglucosamine metabolic process glucosamine-containing compound metabolic process	membrane cellular anatomical entity intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR051822	Glycosyl Hydrolase Family 84	Family
A, B	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A, B	IPR011496	Beta-N-acetylglucosaminidase, catalytic domain	Domain
A, B	IPR016181	Acyl-CoA N-acyltransferase	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: O60502	pancreatic intraductal papillary-mucinous neoplasm subependymal giant cell astrocytoma adrenal cortex carcinoma atrial fibrillation glioblastoma large cell medulloblastoma malignant pancreatic neoplasm oligodendroglioma pancreatic ductal adenocarcinoma Pick disease tuberculosis amyotrophic lateral sclerosis dermatomyositis juvenile dermatomyositis malignant ependymoma pancreatic intraductal papillary-mucinous neoplasm subependymal giant cell astrocytoma adrenal cortex carcinoma atrial fibrillation glioblastoma large cell medulloblastoma malignant pancreatic neoplasm oligodendroglioma pancreatic ductal adenocarcinoma Pick disease tuberculosis amyotrophic lateral sclerosis dermatomyositis juvenile dermatomyositis malignant ependymoma medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous carcinoma psoriasis astrocytic tumor Emery-Dreifuss muscular dystrophy kidney disease malignant glioma myopathy ovarian cancer

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.