7ZL9

Crystal structure of human GPCR Niacin receptor (HCA2)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cytochromes	8057879	3001526	SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07361	Cytochrome b562 (Cytochrom_B562)	Cytochrome b562	-	Family
A	PF00001	7 transmembrane receptor (rhodopsin family) (7tm_1)	7 transmembrane receptor (rhodopsin family)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Hydroxycarboxylic acid receptor 2,Soluble cytochrome b562	binding organic cyclic compound binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity binding organic cyclic compound binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity nicotinic acid receptor activity	myeloid cell apoptotic process multicellular organismal process homeostatic process leukocyte apoptotic process cell death neutrophil homeostasis neutrophil apoptotic process multicellular organismal-level homeostasis leukocyte homeostasis immune system process inflammatory cell apoptotic process cellular process homeostasis of number of cells apoptotic process myeloid cell apoptotic process multicellular organismal process homeostatic process leukocyte apoptotic process cell death neutrophil homeostasis neutrophil apoptotic process multicellular organismal-level homeostasis leukocyte homeostasis immune system process inflammatory cell apoptotic process cellular process homeostasis of number of cells apoptotic process myeloid cell homeostasis programmed cell death cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation G protein-coupled receptor signaling pathway signal transduction cell communication protein localization positive regulation of cell communication regulation of localization establishment of protein localization system process nitrogen compound transport regulation of adiponectin secretion positive regulation of establishment of protein localization positive regulation of adiponectin secretion localization adiponectin secretion cellular macromolecule localization regulation of biological quality regulation of hormone levels organic substance transport establishment of protein localization to extracellular region protein secretion establishment of localization regulation of protein secretion regulation of secretion endocrine hormone secretion positive regulation of protein localization positive regulation of multicellular organismal process cellular localization regulation of hormone secretion regulation of protein localization transport positive regulation of biological process positive regulation of secretion by cell hormone secretion protein localization to extracellular region positive regulation of protein transport secretion by cell regulation of secretion by cell positive regulation of hormone secretion positive regulation of secretion signal release regulation of multicellular organismal process positive regulation of cellular process regulation of signaling secretion regulation of transport regulation of establishment of protein localization export from cell cell-cell signaling regulation of protein transport positive regulation of protein secretion endocrine process positive regulation of transport protein transport regulation of cellular localization macromolecule localization hormone transport regulation of cell communication positive regulation of signaling regulation of programmed cell death regulation of neutrophil apoptotic process positive regulation of myeloid cell apoptotic process positive regulation of neutrophil apoptotic process regulation of immune system process positive regulation of leukocyte apoptotic process positive regulation of immune system process regulation of leukocyte apoptotic process positive regulation of programmed cell death regulation of apoptotic process positive regulation of apoptotic process regulation of myeloid cell apoptotic process negative regulation of catabolic process lipid catabolic process catabolic process regulation of lipid metabolic process negative regulation of metabolic process negative regulation of biological process primary metabolic process regulation of catabolic process regulation of lipid catabolic process regulation of primary metabolic process organic substance metabolic process metabolic process organic substance catabolic process regulation of metabolic process negative regulation of lipid metabolic process negative regulation of lipid catabolic process lipid metabolic process	periplasmic space cellular anatomical entity cell junction cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR010980	Cytochrome c/b562	Homologous Superfamily
A	IPR009155	Cytochrome b562	Family
A	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
A	IPR017452	GPCR, rhodopsin-like, 7TM	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q8TDS4	psoriasis squamous cell carcinoma skin neoplasm schizophrenia Flushing skin cancer acute myeloid leukemia metabolic syndrome X pustulosis palmaris et plantaris bipolar disorder familial hyperlipidemia hypertriglyceridemia lung carcinoma

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Transmembrane	Alpha-helical polytopic	Rhodopsin-like receptors and pumps	G-protein coupled receptors, family A

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	HCA2 hydroxycarboxylic acid receptor 2 (GPR109A, niacin receptor) - G_i complex with bound MK6892

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.