Annotations: 8Z3A

Crystal structure of Sonic hedgehog in complex with antibody 5E1 without metals

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Hedgehog/DD-peptidase	8084197	3001458	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth L]	Fe_hyd_SSU	e8z3aL1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fe_hyd_SSU	ECOD (v295.2)
B [auth H]	Fe_hyd_SSU	e8z3aH1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fe_hyd_SSU	ECOD (v295.2)
A	Fe_hyd_SSU	e8z3aA1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fe_hyd_SSU	ECOD (v295.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L]	Light Chain	IGKV6	Kappa	sonic hedgehog protein n-product	SAbDab (2026-10-02)
B [auth H]	Heavy Chain	IGHV1	-	sonic hedgehog protein n-product	SAbDab (2026-10-02)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth L]	Light chain of antibody 5E1	-	-	-
B [auth H]	Heavy chain of antibody 5E1	-	-	-
A	Sonic hedgehog protein N-product	molecular function activator activity molecular function regulator activity signaling receptor regulator activity morphogen activity receptor ligand activity signaling receptor activator activity patched binding protein binding binding signaling receptor binding cation binding ion binding calcium ion binding metal ion binding molecular function activator activity molecular function regulator activity signaling receptor regulator activity morphogen activity receptor ligand activity signaling receptor activator activity patched binding protein binding binding signaling receptor binding cation binding ion binding calcium ion binding metal ion binding small molecule binding catalytic activity, acting on a protein cholesterol-protein transferase activity transferase activity catalytic activity peptidase activity hydrolase activity endopeptidase activity glycosaminoglycan binding carbohydrate derivative binding extracellular matrix binding laminin-1 binding laminin binding transition metal ion binding zinc ion binding	developmental process multicellular organism development multicellular organismal process anatomical structure development pattern specification process heart development animal organ development animal gross anatomical part developmental process circulatory system development system development thymic T cell selection cellular developmental process hemopoiesis cell activation developmental process multicellular organism development multicellular organismal process anatomical structure development pattern specification process heart development animal organ development animal gross anatomical part developmental process circulatory system development system development thymic T cell selection cellular developmental process hemopoiesis cell activation cell development mononuclear cell differentiation lymphocyte activation lymphocyte differentiation leukocyte activation T cell differentiation in thymus T cell activation immune system process cell differentiation negative thymic T cell selection T cell differentiation cellular process negative T cell selection T cell selection leukocyte differentiation epithelium development tube development branching morphogenesis of an epithelial tube morphogenesis of an epithelium tissue development tissue morphogenesis anatomical structure morphogenesis tube morphogenesis morphogenesis of a branching structure epithelial tube morphogenesis morphogenesis of a branching epithelium regulation of cellular process regulation of developmental process negative regulation of biological process regulation of cell differentiation neurogenesis neuron differentiation regulation of dopaminergic neuron differentiation negative regulation of cellular process negative regulation of dopaminergic neuron differentiation negative regulation of cell differentiation regulation of biological process dopaminergic neuron differentiation negative regulation of developmental process biological regulation nervous system development generation of neurons negative regulation of neuron differentiation regulation of neuron differentiation dorsal/ventral pattern formation regionalization regulation of animal organ morphogenesis regulation of odontogenesis odontogenesis animal organ morphogenesis regulation of anatomical structure morphogenesis genitalia development reproductive system development reproductive process sex differentiation developmental process involved in reproduction male sex differentiation male genitalia development reproductive structure development regulation of localization localization regulation of protein localization macromolecule localization protein localization to organelle regulation of protein localization to nucleus intracellular protein localization protein localization to nucleus renal system development metanephros development collecting duct development metanephric collecting duct development kidney development angiogenesis blood vessel development blood vessel morphogenesis vasculature development branching involved in blood vessel morphogenesis anatomical structure formation involved in morphogenesis intein-mediated protein splicing primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing metabolic process protein metabolic process macromolecule metabolic process protein splicing sclerotome development positive regulation of biological process mesenchyme development embryo development positive regulation of developmental process positive regulation of sclerotome development somite development regulation of sclerotome development negative regulation of locomotion regulation of cell motility regulation of locomotion regulation of cell migration negative regulation of cell motility cell migration cell motility negative regulation of cell migration locomotion negative regulation of sterol transport transport regulation of lipid transport negative regulation of transport organic hydroxy compound transport negative regulation of lipid localization regulation of cholesterol efflux sterol transport regulation of cholesterol transport regulation of sterol transport negative regulation of lipid transport regulation of transport lipid localization lipid transport negative regulation of cholesterol transport establishment of localization regulation of lipid localization negative regulation of cholesterol efflux cholesterol transport cholesterol efflux 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 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 regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process nucleic acid metabolic process regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process smooth muscle cell differentiation positive regulation of smooth muscle cell differentiation regulation of smooth muscle cell differentiation ureter smooth muscle development muscle cell differentiation smooth muscle tissue development muscle structure development positive regulation of cell differentiation regulation of multicellular organismal process muscle organ development muscle tissue development positive regulation of cellular process ureter smooth muscle cell differentiation ureter development regulation of ureter smooth muscle cell differentiation positive regulation of muscle cell differentiation regulation of muscle cell differentiation regulation of muscle organ development positive regulation of ureter smooth muscle cell differentiation positive regulation of multicellular organismal process regulation of leukocyte differentiation regulation of leukocyte activation regulation of alpha-beta T cell activation regulation of cell activation positive regulation of T cell differentiation regulation of cell development positive regulation of cell activation positive regulation of leukocyte activation alpha-beta T cell activation regulation of immune system process positive regulation of immune system process positive regulation of T cell activation positive regulation of cell development positive regulation of alpha-beta T cell activation regulation of leukocyte cell-cell adhesion positive regulation of alpha-beta T cell differentiation positive regulation of leukocyte cell-cell adhesion regulation of alpha-beta T cell differentiation leukocyte cell-cell adhesion positive regulation of cell-cell adhesion regulation of T cell differentiation positive regulation of lymphocyte activation cell adhesion alpha-beta T cell differentiation cell-cell adhesion positive regulation of hemopoiesis regulation of cell-cell adhesion regulation of lymphocyte differentiation regulation of multicellular organismal development positive regulation of cell adhesion regulation of cell adhesion regulation of T cell activation regulation of hemopoiesis positive regulation of leukocyte differentiation positive regulation of lymphocyte differentiation regulation of lymphocyte activation negative regulation of programmed cell death regulation of apoptotic process regulation of programmed cell death cell death negative regulation of apoptotic process apoptotic process programmed cell death positive thymic T cell selection positive T cell selection cellular response to stimulus positive regulation of cell communication positive regulation of signal transduction response to stimulus signaling regulation of signal transduction cell communication positive regulation of response to stimulus positive regulation of smoothened signaling pathway signal transduction regulation of smoothened signaling pathway regulation of signaling cell surface receptor signaling pathway smoothened signaling pathway regulation of response to stimulus regulation of cell communication positive regulation of signaling positive regulation of T cell differentiation in thymus regulation of T cell differentiation in thymus cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation head development forebrain development brain development central nervous system development vasculogenesis axonogenesis cell projection organization plasma membrane bounded cell projection morphogenesis neuron projection development cell morphogenesis cellular component organization cell projection morphogenesis neuron projection morphogenesis cellular component organization or biogenesis plasma membrane bounded cell projection organization axon guidance axon development cell morphogenesis involved in neuron differentiation neuron projection guidance neuron development apoptotic signaling pathway stem cell development stem cell differentiation negative regulation of gene expression embryonic pattern specification lateral mesoderm development determination of left/right asymmetry in lateral mesoderm determination of bilateral symmetry determination of left/right symmetry left/right pattern formation mesoderm development specification of symmetry limb development appendage development embryonic limb morphogenesis embryonic morphogenesis embryonic appendage morphogenesis appendage morphogenesis embryonic digit morphogenesis limb morphogenesis cell fate specification cell fate commitment neuroblast proliferation neural precursor cell proliferation protein autoprocessing hindbrain development negative regulation of kidney smooth muscle cell differentiation regulation of kidney smooth muscle cell differentiation negative regulation of muscle cell differentiation kidney smooth muscle cell differentiation negative regulation of smooth muscle cell differentiation cell differentiation involved in kidney development kidney smooth muscle tissue development cell-cell signaling epithelial-mesenchymal cell signaling CD4-positive or CD8-positive, alpha-beta T cell lineage commitment T cell lineage commitment prostate gland development gland development urogenital system development regulation of hormone levels steroid metabolic process androgen metabolic process regulation of biological quality hormone metabolic process lipid metabolic process regulation of protein metabolic process regulation of proteolysis kidney mesenchymal cell proliferation metanephric mesenchyme development metanephric mesenchymal cell proliferation involved in metanephros development cell proliferation involved in kidney development kidney mesenchyme development cell proliferation involved in metanephros development mesenchymal cell proliferation positive regulation of cell division cell division regulation of cell division ventral midline development cell proliferation in external granule layer cerebellar granule cell precursor proliferation cell proliferation in hindbrain negative regulation of ureter smooth muscle cell differentiation negative regulation of multicellular organismal process activin receptor signaling pathway cell surface receptor protein serine/threonine kinase signaling pathway regulation of transmembrane receptor protein serine/threonine kinase signaling pathway nodal signaling pathway regulation of nodal signaling pathway transforming growth factor beta receptor superfamily signaling pathway regulation of activin receptor signaling pathway enzyme-linked receptor protein signaling pathway lymphocyte proliferation regulation of immature T cell proliferation regulation of leukocyte proliferation positive regulation of immature T cell proliferation positive regulation of lymphocyte proliferation regulation of immature T cell proliferation in thymus positive regulation of T cell proliferation mononuclear cell proliferation positive regulation of leukocyte proliferation immature T cell proliferation in thymus leukocyte proliferation positive regulation of mononuclear cell proliferation positive regulation of immature T cell proliferation in thymus T cell proliferation regulation of lymphocyte proliferation immature T cell proliferation regulation of T cell proliferation regulation of mononuclear cell proliferation mesonephric epithelium development kidney epithelium development nephron morphogenesis nephron tubule morphogenesis nephron epithelium morphogenesis nephron tubule development ureteric bud morphogenesis branching involved in ureteric bud morphogenesis renal tubule development nephron development nephron epithelium development ureteric bud development mesonephros development kidney morphogenesis mesonephric tubule morphogenesis mesonephric tubule development renal tubule morphogenesis 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 transcription by RNA polymerase II positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process heart morphogenesis embryonic heart tube development embryonic heart tube morphogenesis heart looping embryonic organ development embryonic organ morphogenesis determination of heart left/right asymmetry midbrain development immune system development hematopoietic or lymphoid organ development thymus development gliogenesis oligodendrocyte differentiation glial cell differentiation positive regulation of mesenchymal cell proliferation involved in ureter development positive regulation of mesenchymal cell proliferation regulation of mesenchymal cell proliferation mesenchymal cell proliferation involved in ureter development respiratory tube development lung development respiratory system development neural crest cell differentiation neural crest cell development mesenchymal cell migration ameboidal-type cell migration mesenchymal cell differentiation neural crest cell migration neuron fate commitment lymphoid progenitor cell differentiation hematopoietic progenitor cell differentiation polarity specification of anterior/posterior axis specification of axis polarity anterior/posterior pattern specification anterior/posterior axis specification axis specification positive regulation of kidney smooth muscle cell differentiation	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen endoplasmic reticulum lumen intracellular organelle organelle lumen organelle endoplasmic reticulum cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen endoplasmic reticulum lumen intracellular organelle organelle lumen organelle endoplasmic reticulum Golgi membrane Golgi apparatus membrane bounding membrane of organelle organelle membrane cell surface cell periphery plasma membrane membrane microdomain membrane raft extracellular matrix external encapsulating structure extracellular region organelle subcompartment endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036844	Hint domain superfamily	Homologous Superfamily
A	IPR009045	Peptidase M74/Hedgehog-like, zinc-binding domain superfamily	Homologous Superfamily
A	IPR001657	Hedgehog protein	Family
A	IPR006141	Intein N-terminal splicing region	PTM
A	IPR003586	Hint domain C-terminal	Domain
A	IPR003587	Hint domain N-terminal	Domain
A	IPR000320	Hedgehog, N-terminal signalling domain	Domain
A	IPR001767	Hedgehog protein, Hint domain	Domain
A	IPR050387	Hedgehog Signaling	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	: Q15465	holoprosencephaly holoprosencephaly 3 microphthalmia, isolated, with coloboma 5 polydactyly of a triphalangeal thumb solitary median maxillary central incisor syndrome microphthalmia Facial Dysmorphism with Multiple Malformations schizencephaly syndactyly type 4 familial schizencephaly polydactyly coloboma secondary Parkinson disease laurin-Sandrow syndrome nevoid basal cell carcinoma syndrome holoprosencephaly holoprosencephaly 3 microphthalmia, isolated, with coloboma 5 polydactyly of a triphalangeal thumb solitary median maxillary central incisor syndrome microphthalmia Facial Dysmorphism with Multiple Malformations schizencephaly syndactyly type 4 familial schizencephaly polydactyly coloboma secondary Parkinson disease laurin-Sandrow syndrome nevoid basal cell carcinoma syndrome alobar holoprosencephaly pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia brain disease coloboma, ocular, autosomal dominant semilobar holoprosencephaly Currarino triad tibia, hypoplasia or aplasia of, with polydactyly intellectual disability microphthalmia with coloboma 1 pancreatic intraductal papillary-mucinous carcinoma cancer congenital anomaly of kidney and urinary tract skin basal cell carcinoma triphalangeal thumb-polysyndactyly syndrome interstitial cystitis lobar holoprosencephaly pancreatic intraductal papillary-mucinous neoplasm hepatocellular carcinoma hypoplastic tibiae-postaxial polydactyly syndrome