Annotations: 4YUB

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	NAPRTase_A	e4yubA2	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Nicotinate/Quinolinate PRTase N-terminal domain-like	F: NAPRTase_A	ECOD (1.6)
A	NAPRTase_1	e4yubA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: NAPRTase_1	ECOD (1.6)
A	PRK09243,NAPRTase	e4yubA3	A: few secondary structure elements	X: Rubredoxin-like	H: Nicotinate phosphoribosyltransferase C-terminal domain-related (From Topology)	T: Nicotinate phosphoribosyltransferase C-terminal domain-related	F: PRK09243,NAPRTase	ECOD (1.6)
B	NAPRTase_A	e4yubB2	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Nicotinate/Quinolinate PRTase N-terminal domain-like	F: NAPRTase_A	ECOD (1.6)
B	NAPRTase_1	e4yubB1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: NAPRTase_1	ECOD (1.6)
B	PRK09243	e4yubB3	A: few secondary structure elements	X: Rubredoxin-like	H: Nicotinate phosphoribosyltransferase C-terminal domain-related (From Topology)	T: Nicotinate phosphoribosyltransferase C-terminal domain-related	F: PRK09243	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.140.10	Alpha Beta	Alpha-Beta Barrel	nicotinate phosphoribosyltransferase	nicotinate phosphoribosyltransferase	CATH (4.3.0)
B	3.20.140.10	Alpha Beta	Alpha-Beta Barrel	nicotinate phosphoribosyltransferase	nicotinate phosphoribosyltransferase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF17956	Nicotinate phosphoribosyltransferase C-terminal domain (NAPRTase_C)	Nicotinate phosphoribosyltransferase C-terminal domain	This domain is found at the C-terminus of some Nicotinate phosphoribosyltransferase enzymes. The function of this domain is uncertain.	Domain
A, B	PF17767	Nicotinate phosphoribosyltransferase (NAPRTase) N-terminal domain (NAPRTase_N)	Nicotinate phosphoribosyltransferase (NAPRTase) N-terminal domain	Nicotinate phosphoribosyltransferase (EC:2.4.2.11) is the rate limiting enzyme that catalyses the first reaction in the NAD salvage synthesis. This is the N-terminal domain of the enzyme.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Nicotinate phosphoribosyltransferase	nicotinate phosphoribosyltransferase activity catalytic activity ligase activity, forming carbon-nitrogen bonds ligase activity cation binding ion binding binding metal ion binding small molecule binding transferase activity	pyridine nucleotide salvage nucleotide biosynthetic process organonitrogen compound biosynthetic process NAD metabolic process nucleotide salvage nucleobase-containing compound metabolic process purine nucleotide metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process purine nucleotide salvage phosphate-containing compound metabolic process pyridine-containing compound metabolic process small molecule metabolic process cellular metabolic compound salvage pyridine nucleotide salvage nucleotide biosynthetic process organonitrogen compound biosynthetic process NAD metabolic process nucleotide salvage nucleobase-containing compound metabolic process purine nucleotide metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process purine nucleotide salvage phosphate-containing compound metabolic process pyridine-containing compound metabolic process small molecule metabolic process cellular metabolic compound salvage phosphorus metabolic process pyridine nucleotide metabolic process NAD biosynthetic process pyridine nucleotide biosynthetic process nucleoside phosphate metabolic process nicotinamide nucleotide metabolic process NAD salvage organonitrogen compound metabolic process purine-containing compound salvage cellular metabolic process pyridine-containing compound biosynthetic process primary metabolic process nucleobase-containing compound biosynthetic process nucleotide metabolic process purine-containing compound metabolic process nicotinamide nucleotide biosynthetic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process metabolic process cellular process purine nucleotide biosynthetic process response to oxidative stress response to stimulus response to stress	extracellular region cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol lytic vacuole extracellular region cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol lytic vacuole intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen vacuolar lumen endomembrane system intracellular organelle lumen intracellular organelle cytoplasmic vesicle lysosome vesicle lumen azurophil granule vacuole intracellular membrane-bounded organelle secretory granule lumen azurophil granule lumen organelle lumen secretory granule primary lysosome secretory vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR040727	Nicotinate phosphoribosyltransferase, N-terminal domain	Domain
A, B	IPR007229	Nicotinate phosphoribosyltransferase family	Family
A, B	IPR013785	Aldolase-type TIM barrel	Homologous Superfamily
A, B	IPR041619	Nicotinate phosphoribosyltransferase C-terminal domain	Domain
A, B	IPR006405	Nicotinate phosphoribosyltransferase pncB-type	Family
A, B	IPR036068	Nicotinate phosphoribosyltransferase-like, C-terminal	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q6XQN6	hyperuricemia interstitial cystitis migraine disorder osteoarthritis pancreatic intraductal papillary-mucinous neoplasm Peyronie disease ankylosing spondylitis rheumatoid arthritis bursitis systemic sclerosis tinea corporis gout tuberculosis osteosarcoma adrenal cortex carcinoma hyperuricemia interstitial cystitis migraine disorder osteoarthritis pancreatic intraductal papillary-mucinous neoplasm Peyronie disease ankylosing spondylitis rheumatoid arthritis bursitis systemic sclerosis tinea corporis gout tuberculosis osteosarcoma adrenal cortex carcinoma patent ductus arteriosus scleroderma common cold tendinitis tinea pedis medulloblastoma myocardial infarction pemphigus allergic rhinitis plantar wart seborrheic dermatitis synovitis dermatomyositis tenosynovitis

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 R01GM133198.