Annotations: 9MS8

PTCH1 in complex with Fab6H3

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Sterol-sensing	e9ms8A01	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Sterol-sensing	ECOD (v295)
A	Ribosomal_L4	e9ms8A02	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Ribosomal_L4	ECOD (v295)
B [auth L]	Ribosomal_L4	e9ms8L01	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Ribosomal_L4	ECOD (v295)
C [auth H]	Ribosomal_L4	e9ms8H01	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Ribosomal_L4	ECOD (v295)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L]	Light Chain	IGKV4	Kappa	protein patched homolog 1	SAbDab (2026-06-26)
C [auth H]	Heavy Chain	IGHV5	-	protein patched homolog 1	SAbDab (2026-06-26)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF12349	Sterol-sensing domain of SREBP cleavage-activation (Sterol-sensing)	Sterol-sensing domain of SREBP cleavage-activation	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Protein patched homolog 1	molecular transducer activity transmembrane signaling receptor activity signaling receptor activity hedgehog receptor activity protein-containing complex binding binding patched binding protein binding signaling receptor binding sterol binding alcohol binding steroid binding lipid binding cholesterol binding molecular transducer activity transmembrane signaling receptor activity signaling receptor activity hedgehog receptor activity protein-containing complex binding binding patched binding protein binding signaling receptor binding sterol binding alcohol binding steroid binding lipid binding cholesterol binding small molecule binding cyclin binding hedgehog family protein binding heparin binding glycosaminoglycan binding carbohydrate derivative binding sulfur compound binding smoothened binding G protein-coupled receptor binding	positive regulation of cholesterol efflux regulation of localization transport positive regulation of sterol transport positive regulation of biological process regulation of lipid transport organic hydroxy compound transport localization regulation of cholesterol efflux sterol transport regulation of cholesterol transport positive regulation of cholesterol transport regulation of sterol transport regulation of biological process positive regulation of cholesterol efflux regulation of localization transport positive regulation of sterol transport positive regulation of biological process regulation of lipid transport organic hydroxy compound transport localization regulation of cholesterol efflux sterol transport regulation of cholesterol transport positive regulation of cholesterol transport regulation of sterol transport regulation of biological process regulation of transport biological regulation lipid localization lipid transport positive regulation of lipid localization establishment of localization positive regulation of lipid transport positive regulation of transport regulation of lipid localization macromolecule localization cholesterol transport cholesterol efflux response to stimulus response to chemical response to xenobiotic stimulus cellular response to stimulus response to sterol response to lipid response to alcohol response to oxygen-containing compound response to cholesterol cellular response to oxygen-containing compound cellular response to chemical stimulus cellular response to alcohol cellular response to lipid cellular process cellular response to sterol cellular response to cholesterol developmental process multicellular organism development multicellular organismal process head development central nervous system development anatomical structure development animal organ development brain development nervous system development system development reproductive system development prostate gland development reproductive process gland development urogenital system development developmental process involved in reproduction reproductive structure development dorsal/ventral pattern formation pattern specification process regionalization protein localization to cell periphery cellular localization protein localization to plasma membrane intracellular protein localization localization within membrane protein localization to membrane embryonic epithelial tube formation chordate embryonic development tube formation embryo development epithelial tube formation tube morphogenesis embryo development ending in birth or egg hatching epithelial tube morphogenesis morphogenesis of embryonic epithelium epithelium development neural tube development tube development embryonic morphogenesis morphogenesis of an epithelium tissue development tissue morphogenesis anatomical structure morphogenesis neural tube formation anatomical structure formation involved in morphogenesis pharyngeal system development limb development appendage development appendage morphogenesis limb morphogenesis regulation of multicellular organism growth regulation of growth regulation of developmental growth negative regulation of multicellular organism growth regulation of developmental process developmental growth negative regulation of developmental process growth negative regulation of biological process multicellular organism growth negative regulation of developmental growth negative regulation of growth regulation of multicellular organismal process negative regulation of multicellular organismal process renal system development metanephros development collecting duct development metanephric collecting duct development kidney development spermatid development spermatid differentiation sexual reproduction cellular developmental process spermatogenesis multicellular organismal reproductive process cell development cellular process involved in reproduction in multicellular organism gamete generation male gamete generation cell differentiation germ cell development regulation of cellular process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process transcription by RNA polymerase II negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of transcription by RNA polymerase II negative regulation of DNA-templated transcription negative regulation of transcription by RNA polymerase II negative regulation of metabolic process primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process negative regulation of cell division cell division regulation of cell division animal organ morphogenesis neural tube patterning regulation of osteoblast differentiation negative regulation of osteoblast differentiation regulation of cell differentiation osteoblast differentiation ossification negative regulation of cell differentiation regulation of signaling cell surface receptor signaling pathway signaling regulation of signal transduction smoothened signaling pathway cell communication regulation of response to stimulus regulation of cell communication signal transduction regulation of smoothened signaling pathway animal organ regeneration liver development regeneration hepaticobiliary system development liver regeneration protein maturation proteolysis protein processing protein metabolic process response to retinoic acid negative regulation of signaling negative regulation of cell communication negative regulation of smoothened signaling pathway negative regulation of response to stimulus negative regulation of signal transduction commissural neuron axon guidance axonogenesis cell projection organization plasma membrane bounded cell projection morphogenesis neuron projection development cell morphogenesis cellular component organization neurogenesis cell projection morphogenesis neuron differentiation neuron projection morphogenesis cellular component organization or biogenesis plasma membrane bounded cell projection organization axon guidance axon development cell morphogenesis involved in neuron differentiation generation of neurons neuron projection guidance neuron development embryonic limb morphogenesis embryonic appendage morphogenesis response to mechanical stimulus response to abiotic stimulus response to external stimulus regulation of protein localization positive regulation of DNA-templated transcription positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process positive regulation of macromolecule metabolic process positive regulation of cellular process positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process neural plate pattern specification embryonic pattern specification embryonic axis specification neural plate development neural plate axis specification axis specification muscle tissue development smooth muscle tissue development response to nitrogen compound response to alkaloid response to estradiol somite development	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane apical part of cell dendrite terminus axon neuron projection cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane apical part of cell dendrite terminus axon neuron projection plasma membrane bounded cell projection growth cone somatodendritic compartment cell projection distal axon dendritic growth cone dendrite dendritic tree site of polarized growth membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane organelle endocytic vesicle membrane cytoplasm vesicle organelle membrane endocytic vesicle perinuclear region of cytoplasm midbody axonal growth cone membrane microdomain membrane raft plasma membrane raft caveola cilium ciliary membrane cell projection membrane
B [auth L]	6H3 Fab light chain	-	-	-
C [auth H]	6H3 Fab heavy chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000731	Sterol-sensing-like domain	Domain
A	IPR053958	HMGCR/SNAP/NPC1-like, sterol-sensing domain	Domain
A	IPR004766	Transmembrane receptor, patched	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	: Q13635	nevoid basal cell carcinoma syndrome medulloblastoma holoprosencephaly 7 rhabdomyosarcoma holoprosencephaly skin basal cell carcinoma cleft palate Craniofacial Abnormalities adult medulloblastoma medulloepithelioma monosomy 9q22.3 cleft lip ependymoblastoma HIV infectious disease skin neoplasm nevoid basal cell carcinoma syndrome medulloblastoma holoprosencephaly 7 rhabdomyosarcoma holoprosencephaly skin basal cell carcinoma cleft palate Craniofacial Abnormalities adult medulloblastoma medulloepithelioma monosomy 9q22.3 cleft lip ependymoblastoma HIV infectious disease skin neoplasm malignant pancreatic neoplasm medullomyoblastoma with myogenic differentiation cerebral primitive neuroectodermal tumor gastrointestinal stromal tumor skin cancer cancer melanotic medulloblastoma childhood medulloblastoma osteosarcoma endometriosis pancreatic neoplasm gastric cancer psoriasis semilobar holoprosencephaly skin disease basal cell carcinoma interstitial cystitis basal cell carcinoma, susceptibility to, 1 lung cancer brain disease breast cancer cataract desmoplastic/nodular medulloblastoma ovarian cancer gastric carcinoma alobar holoprosencephaly hydrocephalus invasive ductal breast carcinoma squamous cell carcinoma malignant mesothelioma breast carcinoma coloboma endogenous depression pancreatic ductal adenocarcinoma focal dermal hypoplasia primitive neuroectodermal tumor atypical teratoid rhabdoid tumor intellectual disability skin pigmented basal cell carcinoma lobar holoprosencephaly subependymal giant cell astrocytoma brain cancer

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

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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.