Annotations: 9UOK

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A	Heavy Chain	IGHV1	-	leucine-rich repeat-containing g-protein coupled receptor4	SAbDab (2026-01-23)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth C]	PF13855	Leucine rich repeat (LRR_8)	Leucine rich repeat	-	Repeat
C [auth E], D [auth F]	PF00007	Cystine-knot domain (Cys_knot)	Cystine-knot domain	The family comprises glycoprotein hormones and the C-terminal domain of various extracellular proteins. It is believed to be involved in disulfide-linked dimerisation.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	MB52	-	-	-
B [auth C]	Leucine-rich repeat-containing G-protein coupled receptor 4	molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity protein-hormone receptor activity	multicellular organismal process tissue remodeling bone remodeling developmental process epithelium development cell population proliferation tube development morphogenesis of an epithelium tissue development renal system development epithelial cell proliferation involved in renal tubule morphogenesis tissue morphogenesis anatomical structure morphogenesis multicellular organism development multicellular organismal process tissue remodeling bone remodeling developmental process epithelium development cell population proliferation tube development morphogenesis of an epithelium tissue development renal system development epithelial cell proliferation involved in renal tubule morphogenesis tissue morphogenesis anatomical structure morphogenesis multicellular organism development tube morphogenesis anatomical structure development renal tubule development cellular process epithelial tube morphogenesis epithelial cell proliferation renal tubule morphogenesis system development cellular developmental process ossification cell differentiation osteoblast differentiation cellular response to stimulus positive regulation of response to biotic stimulus regulation of cellular process pattern recognition receptor signaling pathway response to stimulus toll-like receptor signaling pathway negative regulation of biological process regulation of signal transduction response to biotic stimulus cell communication immune response-activating signaling pathway positive regulation of immune response regulation of immune system process signal transduction positive regulation of immune system process innate immune response-activating signaling pathway regulation of biological process immune response response to other organism regulation of innate immune response response to external stimulus regulation of response to stimulus defense response to other organism regulation of pattern recognition receptor signaling pathway positive regulation of defense response activation of innate immune response regulation of immune response regulation of toll-like receptor signaling pathway 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 signaling negative regulation of signaling positive regulation of biological process negative regulation of cell communication positive regulation of response to stimulus positive regulation of response to external stimulus immune response-regulating signaling pathway regulation of response to stress response to stress innate immune response negative regulation of cellular process response to external biotic stimulus regulation of signaling positive regulation of innate immune response defense response negative regulation of response to stimulus biological regulation defense response to symbiont negative regulation of signal transduction negative regulation of toll-like receptor signaling pathway negative regulation of immune system process immune system process regulation of cell communication spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation bone mineralization animal organ development biomineral tissue development mesonephric epithelium development kidney epithelium development branching morphogenesis of an epithelial tube nephron tubule morphogenesis regulation of kidney development regulation of branching involved in ureteric bud morphogenesis positive regulation of developmental process animal organ morphogenesis nephron development regulation of morphogenesis of a branching structure regulation of animal organ morphogenesis positive regulation of multicellular organismal process mesonephric tubule development regulation of developmental process nephron morphogenesis nephron epithelium morphogenesis nephron tubule development ureteric bud morphogenesis positive regulation of morphogenesis of an epithelium branching involved in ureteric bud morphogenesis regulation of morphogenesis of an epithelium regulation of multicellular organismal process regulation of anatomical structure morphogenesis nephron epithelium development ureteric bud development mesonephros development kidney morphogenesis morphogenesis of a branching structure positive regulation of branching involved in ureteric bud morphogenesis mesonephric tubule morphogenesis kidney development morphogenesis of a branching epithelium digestive system development digestive tract development epidermis development molting cycle process hair cycle skin development skin epidermis development hair follicle development molting cycle hair cycle process genitalia development reproductive system development sex differentiation male sex differentiation male genitalia development reproductive structure development multicellular organismal-level homeostasis homeostatic process homeostasis of number of cells intestinal stem cell homeostasis regulation of biosynthetic process rhythmic process circadian regulation of gene expression circadian rhythm regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression biosynthetic process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process cytokine production regulation of cytokine production negative regulation of macromolecule metabolic process negative regulation of metabolic process negative regulation of cytokine production negative regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of multicellular organismal process metanephric tubule morphogenesis metanephric epithelium development metanephros development metanephros morphogenesis metanephric nephron tubule morphogenesis metanephric nephron development metanephric nephron epithelium development metanephric nephron tubule development metanephric nephron morphogenesis metanephric tubule development cell surface receptor signaling pathway Wnt signaling pathway positive regulation of cell communication positive regulation of signal transduction regulation of canonical Wnt signaling pathway canonical Wnt signaling pathway positive regulation of Wnt signaling pathway positive regulation of cellular process positive regulation of canonical Wnt signaling pathway regulation of Wnt signaling pathway positive regulation of signaling negative regulation of cold-induced thermogenesis adaptive thermogenesis regulation of cold-induced thermogenesis cold-induced thermogenesis temperature homeostasis metanephric glomerulus development glomerulus development	cell periphery cellular anatomical structure plasma membrane membrane
C [auth E], D [auth F]	Norrin,Immunoglobulin gamma-1 heavy chain	protein binding binding signaling receptor binding G protein-coupled receptor binding frizzled binding identical protein binding protein homodimerization activity protein dimerization activity molecular function activator activity molecular function regulator activity cytokine activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	developmental process multicellular organism development multicellular organismal process nerve development cranial nerve development anatomical structure development optic nerve development nervous system development system development response to stimulus response to stress response to wounding response to axon injury behavior developmental process multicellular organism development multicellular organismal process nerve development cranial nerve development anatomical structure development optic nerve development nervous system development system development response to stimulus response to stress response to wounding response to axon injury behavior exploration behavior cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling canonical Wnt signaling pathway biological regulation cell communication cellular process signal transduction Wnt signaling pathway sensory organ development eye development animal organ development visual system development camera-type eye development sensory system development lens development in camera-type eye response to decreased oxygen levels cellular response to oxygen levels cellular response to hypoxia cellular response to decreased oxygen levels cellular response to chemical stimulus cellular response to stress response to hypoxia response to chemical response to oxygen levels response to abiotic stimulus epithelium development retinal pigment epithelium development retina development in camera-type eye tissue development primary metabolic process protein ubiquitination macromolecule modification metabolic process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal glutathione metabolic process modified amino acid metabolic process sulfur compound metabolic process amide metabolic process oxoacid metabolic process carboxylic acid metabolic process amino acid metabolic process organic acid metabolic process alpha-amino acid metabolic process glycine metabolic process proteinogenic amino acid metabolic process small molecule metabolic process dendritic spine development plasma membrane bounded cell projection organization cellular developmental process cell projection organization cell development neuron projection development cellular component organization generation of neurons neurogenesis neuron differentiation dendrite development cell differentiation neuron development cellular component organization or biogenesis cell cycle re-entry into mitotic cell cycle cell cycle process positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of transcription by RNA polymerase II regulation of macromolecule metabolic process positive regulation of transcription by RNA polymerase II nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process regulation of gene expression biosynthetic process positive regulation of RNA biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription regulation of metabolic process blood vessel morphogenesis tube development retina vasculature development in camera-type eye retina vasculature morphogenesis in camera-type eye vasculature development circulatory system development anatomical structure morphogenesis tube morphogenesis retinal blood vessel morphogenesis blood vessel development cellular response to growth factor stimulus cell surface receptor protein serine/threonine kinase signaling pathway cellular response to transforming growth factor beta stimulus response to endogenous stimulus cellular response to endogenous stimulus response to transforming growth factor beta transforming growth factor beta receptor signaling pathway response to growth factor transforming growth factor beta receptor superfamily signaling pathway enzyme-linked receptor protein signaling pathway mitotic cell cycle smoothened signaling pathway establishment of blood-brain barrier central nervous system development angiogenesis anatomical structure formation involved in morphogenesis action potential regulation of biological quality regulation of membrane potential axonogenesis plasma membrane bounded cell projection morphogenesis cell morphogenesis cell projection morphogenesis neuron projection morphogenesis axon guidance axon development cell morphogenesis involved in neuron differentiation neuron projection guidance retinal ganglion cell axon guidance positive regulation of cell communication regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of signal transduction regulation of signal transduction intracellular signal transduction positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette regulation of signaling positive regulation of intracellular signal transduction positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction regulation of response to stimulus regulation of cell communication phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of signaling import into cell ubiquitin-dependent endocytosis establishment of protein localization nitrogen compound transport transport establishment of localization vesicle-mediated transport localization establishment of protein localization to organelle protein transport macromolecule localization protein localization to organelle intracellular protein localization endocytosis endothelial cell differentiation endothelium development epithelial cell differentiation myeloid leukocyte differentiation hemopoiesis macrophage differentiation mononuclear cell differentiation gliogenesis glial cell differentiation myeloid cell differentiation microglia differentiation leukocyte differentiation aerobic respiration cellular respiration tricarboxylic acid cycle energy derivation by oxidation of organic compounds generation of precursor metabolites and energy establishment of blood-retinal barrier Norrin signaling pathway blood vessel remodeling tissue remodeling neuron apoptotic process apoptotic process cell death programmed cell death photoreceptor cell differentiation neural retina development eye morphogenesis eye photoreceptor cell differentiation animal organ morphogenesis camera-type eye morphogenesis camera-type eye photoreceptor cell differentiation retina morphogenesis in camera-type eye sensory organ morphogenesis retinal rod cell differentiation cone retinal bipolar cell differentiation retinal bipolar neuron differentiation glutamatergic neuron differentiation multi-multicellular organism process placenta development reproductive process maternal process involved in female pregnancy multicellular organismal reproductive process developmental process involved in reproduction maternal placenta development female pregnancy multi-organism reproductive process decidualization extracellular matrix-cell signaling sensory perception of light stimulus system process sensory perception nervous system process visual perception microglial cell proliferation cell population proliferation leukocyte proliferation macrophage proliferation glial cell proliferation cellular localization protein targeting establishment of protein localization to vacuole lysosomal transport protein targeting to lysosome establishment of localization in cell protein targeting to vacuole intracellular transport protein localization to vacuole protein localization to lysosome vacuolar transport intracellular protein transport defense response inflammatory response retina layer formation multicellular organismal-level homeostasis homeostatic process anatomical structure homeostasis retina blood vessel maintenance tissue homeostasis retina homeostasis organelle organization vacuole organization	cellular anatomical structure extracellular region extracellular space cell surface

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR040838	SabA, N-terminal extracellular adhesion domain	Domain
A	IPR002718	Outer membrane protein, Helicobacter	Family
B [auth C]	IPR000372	Leucine-rich repeat N-terminal domain	Domain
B [auth C]	IPR003591	Leucine-rich repeat, typical subtype	Repeat
B [auth C]	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
B [auth C]	IPR002131	Glycoprotein hormone receptor family	Family
B [auth C]	IPR017452	GPCR, rhodopsin-like, 7TM	Domain
B [auth C]	IPR001611	Leucine-rich repeat	Repeat
B [auth C]	IPR032675	Leucine-rich repeat domain superfamily	Homologous Superfamily
C [auth E], D [auth F]	IPR003064	Norrie disease protein	Family
C [auth E], D [auth F]	IPR029034	Cystine-knot cytokine	Homologous Superfamily
C [auth E], D [auth F]	IPR006208	Glycoprotein hormone subunit beta	Domain
C [auth E], D [auth F]	IPR006207	Cystine knot, C-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B [auth C]	Pharos: Q9BXB1	BONE MINERAL DENSITY QUANTITATIVE TRAIT LOCUS 17 adenoma glioblastoma lung adenocarcinoma malignant glioma obesity disorder psoriasis adrenal cortex carcinoma breast cancer interstitial cystitis lung cancer malignant mesothelioma osteoporosis spina bifida atypical teratoid rhabdoid tumor BONE MINERAL DENSITY QUANTITATIVE TRAIT LOCUS 17 adenoma glioblastoma lung adenocarcinoma malignant glioma obesity disorder psoriasis adrenal cortex carcinoma breast cancer interstitial cystitis lung cancer malignant mesothelioma osteoporosis spina bifida atypical teratoid rhabdoid tumor breast carcinoma large cell medulloblastoma lung carcinoma non-small cell lung carcinoma osteosarcoma
C [auth E], D [auth F]	Pharos: Q00604	Norrie disease exudative vitreoretinopathy Coats disease exudative vitreoretinopathy 2, X-linked persistent hyperplastic primary vitreous retinopathy of prematurity exudative vitreoretinopathy 1 adrenal cortex carcinoma intellectual disability Retinal Nonattachment, Nonsyndromic Congenital subependymal giant cell astrocytoma atypical teratoid rhabdoid tumor large cell medulloblastoma cataract medulloblastoma Norrie disease exudative vitreoretinopathy Coats disease exudative vitreoretinopathy 2, X-linked persistent hyperplastic primary vitreous retinopathy of prematurity exudative vitreoretinopathy 1 adrenal cortex carcinoma intellectual disability Retinal Nonattachment, Nonsyndromic Congenital subependymal giant cell astrocytoma atypical teratoid rhabdoid tumor large cell medulloblastoma cataract medulloblastoma primitive neuroectodermal tumor schizophrenia

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.