Annotations: 8X5Y

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth B]	SCOP2B Superfamily	G protein-coupled receptor-like	8091202	3000473	SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B]	PF00001	7 transmembrane receptor (rhodopsin family) (7tm_1)	7 transmembrane receptor (rhodopsin family)	This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GC ...	This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GCPRs of the rhodopsin superfamily. All opsins bind a chromophore, such as 11-cis-retinal. The function of most opsins other than the photoisomerases is split into two steps: light absorption and G-protein activation. Photoisomerases, on the other hand, are not coupled to G-proteins - they are thought to generate and supply the chromophore that is used by visual opsins [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B]	Histamine H1 receptor,Soluble cytochrome b562	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 G protein-coupled amine receptor activity molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity 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 G protein-coupled amine receptor activity molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity histamine receptor activity	electron transport chain metabolic process cellular process generation of precursor metabolites and energy regulation of tube diameter multicellular organismal process regulation of biological process system process regulation of tube size regulation of system process biological regulation positive regulation of biological process positive regulation of vasoconstriction circulatory system process electron transport chain metabolic process cellular process generation of precursor metabolites and energy regulation of tube diameter multicellular organismal process regulation of biological process system process regulation of tube size regulation of system process biological regulation positive regulation of biological process positive regulation of vasoconstriction circulatory system process regulation of blood circulation vascular process in circulatory system regulation of vasoconstriction positive regulation of multicellular organismal process regulation of multicellular organismal process blood vessel diameter maintenance regulation of biological quality vasoconstriction blood circulation regulation of anatomical structure size cellular response to stimulus regulation of cellular process response to stimulus signaling phospholipase C-activating G protein-coupled receptor signaling pathway cell communication G protein-coupled receptor signaling pathway signal transduction trans-synaptic signaling synaptic signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission regulation of synaptic plasticity regulation of signaling modulation of chemical synaptic transmission regulation of trans-synaptic signaling regulation of cell communication cellular response to nitrogen compound cellular response to chemical stimulus response to histamine response to chemical cellular response to histamine response to nitrogen compound defense response response to stress inflammatory response regulation of vascular permeability behavior learning or memory nervous system process cognition memory response to light stimulus learning visual learning visual behavior associative learning response to radiation response to abiotic stimulus G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger	cellular anatomical structure periplasmic space synapse cell junction intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane somatodendritic compartment cell projection dendrite dendritic tree cellular anatomical structure periplasmic space synapse cell junction intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B]	IPR010980	Cytochrome c/b562	Homologous Superfamily
A [auth B]	IPR009155	Cytochrome b562	Family
A [auth B]	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
A [auth B]	IPR000921	Histamine H1 receptor	Family
A [auth B]	IPR017452	GPCR, rhodopsin-like, 7TM	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth B]	Pharos: P35367	allergic rhinitis rhinitis schizophrenia Pain atherosclerosis substance withdrawal syndrome pancreatic intraductal papillary-mucinous carcinoma perennial allergic rhinitis hypotensive disorder invasive ductal breast carcinoma angioedema malignant glioma motion sickness atopic eczema vasomotor rhinitis allergic rhinitis rhinitis schizophrenia Pain atherosclerosis substance withdrawal syndrome pancreatic intraductal papillary-mucinous carcinoma perennial allergic rhinitis hypotensive disorder invasive ductal breast carcinoma angioedema malignant glioma motion sickness atopic eczema vasomotor rhinitis chronic kidney disease osteoarthritis pancreatic intraductal papillary-mucinous neoplasm pilocytic astrocytoma acute myeloid leukemia seasonal allergic rhinitis allergic urticaria lung cancer malignant pancreatic neoplasm tuberculosis bipolar disorder colorectal cancer osteosarcoma depressive disorder familial dermatographia glioblastoma insomnia allergic disease malignant ependymoma arteriosclerosis disorder medulloblastoma atopic conjunctivitis urticaria common cold ovarian cancer

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth B]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A [auth B]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth B]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	Histamine H₁ receptor, apo state, local refinement

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.