Annotations: 4XWH

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	NAGLU_C	e4xwhA2	A: alpha bundles	X: Hyaluronidase domain-like	H: Hyaluronidase post-catalytic domain-like (From Topology)	T: Hyaluronidase post-catalytic domain-like	F: NAGLU_C	ECOD (1.6)
A	NAGLU	e4xwhA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: NAGLU	ECOD (1.6)
A	NAGLU_N	e4xwhA3	A: mixed a+b and a/b	X: Zincin-like	H: beta-N-acetylhexosaminidase-like domain (From Topology)	T: beta-N-acetylhexosaminidase-like domain	F: NAGLU_N	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF12972	Alpha-N-acetylglucosaminidase (NAGLU) C-terminal domain (NAGLU_C)	Alpha-N-acetylglucosaminidase (NAGLU) C-terminal domain	Alpha-N-acetylglucosaminidase, a lysosomal enzyme required for the stepwise degradation of heparan sulfate [1]. Mutations on the alpha-N-acetylglucosaminidase (NAGLU) gene can lead to Mucopolysaccharidosis type IIIB (MPS IIIB; or Sanfilippo syndrome ...	Alpha-N-acetylglucosaminidase, a lysosomal enzyme required for the stepwise degradation of heparan sulfate [1]. Mutations on the alpha-N-acetylglucosaminidase (NAGLU) gene can lead to Mucopolysaccharidosis type IIIB (MPS IIIB; or Sanfilippo syndrome type B) characterised by neurological dysfunction but relatively mild somatic manifestations [2]. The structure shows that the enzyme is composed of three domains. This C-terminal domain has an all alpha helical fold [3].	Domain
A	PF12971	Alpha-N-acetylglucosaminidase (NAGLU) N-terminal domain (NAGLU_N)	Alpha-N-acetylglucosaminidase (NAGLU) N-terminal domain	Alpha-N-acetylglucosaminidase, a lysosomal enzyme required for the stepwise degradation of heparan sulfate [1]. Mutations on the alpha-N-acetylglucosaminidase (NAGLU) gene can lead to Mucopolysaccharidosis type IIIB (MPS IIIB; or Sanfilippo syndrome ...	Alpha-N-acetylglucosaminidase, a lysosomal enzyme required for the stepwise degradation of heparan sulfate [1]. Mutations on the alpha-N-acetylglucosaminidase (NAGLU) gene can lead to Mucopolysaccharidosis type IIIB (MPS IIIB; or Sanfilippo syndrome type B) characterised by neurological dysfunction but relatively mild somatic manifestations [2]. The structure shows that the enzyme is composed of three domains. This N-terminal domain has an alpha-beta fold [3].	Domain
A	PF05089	Alpha-N-acetylglucosaminidase (NAGLU) tim-barrel domain (NAGLU)	Alpha-N-acetylglucosaminidase (NAGLU) tim-barrel domain	Alpha-N-acetylglucosaminidase, a lysosomal enzyme required for the stepwise degradation of heparan sulfate [1]. Mutations on the alpha-N-acetylglucosaminidase (NAGLU) gene can lead to Mucopolysaccharidosis type IIIB (MPS IIIB; or Sanfilippo syndrome ...	Alpha-N-acetylglucosaminidase, a lysosomal enzyme required for the stepwise degradation of heparan sulfate [1]. Mutations on the alpha-N-acetylglucosaminidase (NAGLU) gene can lead to Mucopolysaccharidosis type IIIB (MPS IIIB; or Sanfilippo syndrome type B) characterised by neurological dysfunction but relatively mild somatic manifestations [2]. The structure shows that the enzyme is composed of three domains. This central domain has a tim barrel fold [3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Alpha-N-acetylglucosaminidase	hydrolase activity, acting on glycosyl bonds hexosaminidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity alpha-N-acetylglucosaminidase activity catalytic activity	response to carbohydrate response to stimulus response to disaccharide response to chemical response to oxygen-containing compound behavior multicellular organismal process exploration behavior rod bipolar cell differentiation cellular developmental process sensory organ development retina development in camera-type eye visual system development neural retina development response to carbohydrate response to stimulus response to disaccharide response to chemical response to oxygen-containing compound behavior multicellular organismal process exploration behavior rod bipolar cell differentiation cellular developmental process sensory organ development retina development in camera-type eye visual system development neural retina development neurogenesis multicellular organism development eye morphogenesis neuron differentiation cell differentiation anatomical structure development animal organ morphogenesis sensory system development system development developmental process camera-type eye morphogenesis eye development animal organ development nervous system development retinal bipolar neuron differentiation glutamatergic neuron differentiation generation of neurons retina morphogenesis in camera-type eye anatomical structure morphogenesis sensory organ morphogenesis camera-type eye development cellular process cellular response to stimulus cell surface receptor signaling pathway via STAT regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling biological regulation cell communication signal transduction catabolic process autophagy metabolic process process utilizing autophagic mechanism multicellular organismal-level iron ion homeostasis inorganic ion homeostasis multicellular organismal-level homeostasis chemical homeostasis homeostatic process multicellular organismal-level chemical homeostasis monoatomic ion homeostasis monoatomic cation homeostasis mechanoreceptor differentiation inner ear receptor cell development ear development cell development inner ear receptor cell differentiation inner ear development neuron development epithelium development epidermis development molting cycle process hair cycle epidermis morphogenesis morphogenesis of an epithelium tissue development tissue morphogenesis skin development skin epidermis development hair follicle development molting cycle hair cycle process hair follicle morphogenesis response to oxidative stress cellular response to chemical stimulus cellular response to stress response to stress cellular response to oxidative stress cellular response to chemical stress head development brain development cerebellar cortex development cerebellar Purkinje cell layer development cerebellum development central nervous system development metencephalon development hindbrain development limb development appendage development astrocyte differentiation astrocyte activation glial cell development astrocyte development gliogenesis defense response cell activation glial cell differentiation glial cell activation inflammatory response neuroinflammatory response endothelium development response to wounding primary metabolic process protein metabolic process macromolecule metabolic process amyloid precursor protein metabolic process rhythmic process circadian behavior locomotory behavior rhythmic behavior circadian rhythm locomotor rhythm vesicle localization establishment of organelle localization cellular localization transport establishment of vesicle localization establishment of localization vesicle targeting vesicle-mediated transport cellular component organization localization organelle localization establishment of localization in cell cellular component organization or biogenesis vesicle tethering nerve development heart development atrioventricular valve development heart valve development mitral valve morphogenesis circulatory system development heart valve morphogenesis mitral valve development atrioventricular valve morphogenesis heparan sulfate proteoglycan metabolic process carbohydrate derivative metabolic process proteoglycan metabolic process glycoprotein metabolic process myeloid leukocyte activation leukocyte activation macrophage activation immune system process leukocyte activation involved in inflammatory response microglial cell activation cellular response to organic cyclic compound response to organic cyclic compound hepaticobiliary system development gland development liver development ear morphogenesis embryonic organ morphogenesis middle ear morphogenesis embryonic morphogenesis embryo development embryonic organ development positive regulation of response to biotic stimulus immune response-regulating cell surface receptor signaling pathway pattern recognition receptor signaling pathway response to biotic stimulus immune response-activating signaling pathway positive regulation of immune response regulation of immune system process positive regulation of immune system process cell surface toll-like receptor signaling pathway innate immune response-activating signaling pathway immune response response to other organism immune response-activating cell surface receptor signaling pathway regulation of innate immune response response to external stimulus regulation of response to stimulus defense response to other organism positive regulation of defense response activation of innate immune response regulation of immune response activation of immune response regulation of defense response regulation of response to biotic stimulus biological process involved in interspecies interaction between organisms regulation of response to external stimulus positive regulation of biological process innate immune response activating cell surface receptor signaling pathway positive regulation of response to stimulus positive regulation of response to external stimulus immune response-regulating signaling pathway regulation of response to stress innate immune response response to external biotic stimulus cell surface pattern recognition receptor signaling pathway positive regulation of innate immune response defense response to symbiont toll-like receptor 4 signaling pathway aorta morphogenesis blood vessel morphogenesis tube development artery development aorta development vasculature development tube morphogenesis artery morphogenesis blood vessel development superoxide metabolic process reactive oxygen species metabolic process adult behavior regulation of hormone levels regulation of biological quality hormone metabolic process ventricular cardiac muscle tissue morphogenesis heart morphogenesis striated muscle tissue development muscle structure development left ventricular cardiac muscle tissue morphogenesis ventricular cardiac muscle tissue development cardiac chamber development muscle tissue development muscle organ development cardiac chamber morphogenesis cardiac muscle tissue development muscle tissue morphogenesis cardiac ventricle morphogenesis cardiac muscle tissue morphogenesis cardiac left ventricle morphogenesis cardiac ventricle development muscle organ morphogenesis gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing ceramide metabolic process membrane lipid metabolic process glycosphingolipid metabolic process glycolipid metabolic process liposaccharide metabolic process sphingolipid metabolic process amide metabolic process ganglioside metabolic process lipid metabolic process proteolysis involved in protein catabolic process proteasomal protein catabolic process protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process ubiquitin-dependent protein catabolic process lysosome organization organelle organization vacuole organization lytic vacuole organization sequestering of metal ion maintenance of location in cell maintenance of location intracellular iron ion homeostasis cellular homeostasis sequestering of iron ion intracellular monoatomic cation homeostasis intracellular chemical homeostasis intracellular monoatomic ion homeostasis myeloid leukocyte differentiation hemopoiesis macrophage differentiation mononuclear cell differentiation myeloid cell differentiation microglia differentiation leukocyte differentiation photoreceptor cell differentiation retinal rod cell development eye photoreceptor cell differentiation photoreceptor cell development eye photoreceptor cell development camera-type eye photoreceptor cell differentiation retinal rod cell differentiation determination of adult lifespan collagen metabolic process cone retinal bipolar cell differentiation cardiac muscle cell development muscle cell differentiation striated muscle cell development muscle cell development cardiac cell development cardiac muscle cell differentiation cardiocyte differentiation striated muscle cell differentiation carbohydrate derivative catabolic process glycoprotein catabolic process cellular catabolic process sulfur compound catabolic process heparan sulfate proteoglycan catabolic process sulfur compound metabolic process proteoglycan catabolic process maintenance of blood-brain barrier anatomical structure homeostasis tissue homeostasis motor behavior cytoplasm organization response to lipid response to lipopolysaccharide response to bacterium response to molecule of bacterial origin Golgi organization endomembrane system organization mucopolysaccharide metabolic process heparin metabolic process glycosaminoglycan metabolic process aminoglycan metabolic process	extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure lytic vacuole membrane-enclosed lumen vacuolar lumen extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure lytic vacuole membrane-enclosed lumen vacuolar lumen vacuole intracellular membrane-bounded organelle lysosomal lumen intracellular organelle lumen intracellular organelle organelle lumen cytoplasm lysosome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR007781	Alpha-N-acetylglucosaminidase	Family
A	IPR024733	Alpha-N-acetylglucosaminidase, tim-barrel domain	Domain
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A	IPR024240	Alpha-N-acetylglucosaminidase, N-terminal	Domain
A	IPR024732	Alpha-N-acetylglucosaminidase, C-terminal	Domain
A	IPR029018	Beta-hexosaminidase-like, domain 2	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P54802	mucopolysaccharidosis type 3 Sanfilippo syndrome type B Charcot-Marie-Tooth disease Charcot-Marie-Tooth disease axonal type 2V intellectual disability Sanfilippo syndrome type A Sanfilippo syndrome type D prostate cancer peripheral neuropathy Sanfilippo syndrome type C mucopolysaccharidosis Ataxias, Hereditary lysosomal storage disease metabolic syndrome X peripheral nervous system disease mucopolysaccharidosis type 3 Sanfilippo syndrome type B Charcot-Marie-Tooth disease Charcot-Marie-Tooth disease axonal type 2V intellectual disability Sanfilippo syndrome type A Sanfilippo syndrome type D prostate cancer peripheral neuropathy Sanfilippo syndrome type C mucopolysaccharidosis Ataxias, Hereditary lysosomal storage disease metabolic syndrome X peripheral nervous system disease subependymal giant cell astrocytoma inborn errors of metabolism motor peripheral neuropathy neurodegenerative disease

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	NEP	Parent Component: HIS RESID: AA0035 PSI-MOD : 1'-phospho-L-histidine MOD:00044

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.