Annotations: 8X63

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)
A [auth B]	SCOP2B Superfamily	G protein-coupled receptor-like	8091202	3000473	SCOP2B (2022-06-29)

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 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 neurotransmitter receptor activity molecular transducer activity 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 neurotransmitter receptor activity molecular transducer activity signaling receptor activity G protein-coupled amine receptor activity G protein-coupled serotonin receptor activity G protein-coupled receptor activity transmembrane signaling receptor activity histamine receptor activity	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 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 cellular process 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 response to organic substance response to organonitrogen compound response to endogenous stimulus cellular response to organic cyclic compound response to nitrogen compound cellular response to endogenous stimulus cellular response to chemical stimulus response to histamine cellular response to organonitrogen compound response to chemical cellular response to histamine cellular response to organic substance response to organic cyclic 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	periplasmic space cellular anatomical entity synapse cell junction intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane somatodendritic compartment cell projection dendrite dendritic tree periplasmic space cellular anatomical entity 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 malignant glioma angioedema motion sickness atopic eczema chronic kidney disease allergic rhinitis rhinitis schizophrenia Pain atherosclerosis substance withdrawal syndrome pancreatic intraductal papillary-mucinous carcinoma perennial allergic rhinitis hypotensive disorder invasive ductal breast carcinoma malignant glioma angioedema motion sickness atopic eczema chronic kidney disease osteoarthritis vasomotor rhinitis pancreatic intraductal papillary-mucinous neoplasm pilocytic astrocytoma acute myeloid leukemia lung cancer seasonal allergic rhinitis allergic urticaria malignant pancreatic neoplasm tuberculosis bipolar disorder colorectal cancer osteosarcoma depressive disorder familial dermatographia glioblastoma insomnia allergic disease malignant ependymoma medulloblastoma arteriosclerosis disorder 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 R01GM133198.