4C79

Crystal structure of the Smoothened CRD, native

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	Frizzled cysteine-rich domain	8100329	4002966	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Frizzled domain-like	8100330	3001950	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Fz	e4c79A1	A: few secondary structure elements	X: Frizzled cysteine-rich domain-related (From Topology)	H: Frizzled cysteine-rich domain-related (From Topology)	T: Frizzled cysteine-rich domain-related	F: Fz	ECOD (1.6)
B	Fz	e4c79B1	A: few secondary structure elements	X: Frizzled cysteine-rich domain-related (From Topology)	H: Frizzled cysteine-rich domain-related (From Topology)	T: Frizzled cysteine-rich domain-related	F: Fz	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.2000.10	Mainly Alpha	Orthogonal Bundle	Frizzled cysteine-rich domain	Frizzled cysteine-rich domain	CATH (4.3.0)
B	1.10.2000.10	Mainly Alpha	Orthogonal Bundle	Frizzled cysteine-rich domain	Frizzled cysteine-rich domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01392	Fz domain (Fz)	Fz domain	Also known as the CRD (cysteine rich domain), the C6 box in MuSK receptor. This domain of unknown function has been independently identified by several groups [1,2,3,4]. The domain contains 10 conserved cysteines.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	SMOOTHENED	patched binding protein binding binding signaling receptor binding molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity molecular sequestering activity protein sequestering activity sterol binding oxysterol binding organic cyclic compound binding steroid binding patched binding protein binding binding signaling receptor binding molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity molecular sequestering activity protein sequestering activity sterol binding oxysterol binding organic cyclic compound binding steroid binding lipid binding protein kinase A catalytic subunit binding protein kinase A binding kinase binding enzyme binding protein kinase binding	developmental process multicellular organism development multicellular organismal process skeletal system development connective tissue development anatomical structure development animal organ development tissue development cartilage development system development cellular developmental process cell differentiation in spinal cord nervous system development generation of neurons developmental process multicellular organism development multicellular organismal process skeletal system development connective tissue development anatomical structure development animal organ development tissue development cartilage development system development cellular developmental process cell differentiation in spinal cord nervous system development generation of neurons central nervous system neuron differentiation neurogenesis spinal cord development central nervous system development neuron differentiation cell differentiation somatic motor neuron differentiation ventral spinal cord development cellular process spinal cord motor neuron differentiation anatomical structure morphogenesis animal organ morphogenesis swim bladder development swim bladder morphogenesis head development forebrain development endocrine system development pituitary gland development gland development brain development diencephalon development adenohypophysis development pattern specification process hindbrain development neural crest cell differentiation mesenchyme development stem cell differentiation mesenchymal cell differentiation heart development cardiocyte differentiation circulatory system development cardioblast differentiation embryonic organ morphogenesis embryonic viscerocranium morphogenesis embryonic cranial skeleton morphogenesis chordate embryonic development embryonic morphogenesis embryo development embryo development ending in birth or egg hatching cranial skeletal system development embryonic skeletal system development skeletal system morphogenesis embryonic organ development embryonic skeletal system morphogenesis cell development glial cell development gliogenesis glial cell differentiation habenula development epithalamus development sensory organ development eye development retina development in camera-type eye visual system development camera-type eye development sensory system development ear development inner ear development floor plate formation epithelium development floor plate development neural tube development tube development floor plate morphogenesis ventral midline development tissue morphogenesis anatomical structure formation involved in morphogenesis regulation of cellular process regulation of protein modification process regulation of protein phosphorylation negative regulation of biological process negative regulation of phosphate metabolic process negative regulation of cellular metabolic process regulation of primary metabolic process regulation of phosphate metabolic process phosphate-containing compound metabolic process negative regulation of protein modification process negative regulation of cellular process protein metabolic process protein modification process phosphorus metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of biological process protein phosphorylation phosphorylation regulation of protein metabolic process cellular metabolic process negative regulation of metabolic process biological regulation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process negative regulation of protein phosphorylation macromolecule modification negative regulation of phosphorus metabolic process metabolic process regulation of phosphorylation regulation of phosphorus metabolic process macromolecule metabolic process negative regulation of phosphorylation regulation of metabolic process fin development caudal fin morphogenesis fin morphogenesis medial fin morphogenesis appendage development appendage morphogenesis medial fin development caudal fin development muscle structure development muscle organ development digestive system development exocrine pancreas development pancreas development exocrine system development morphogenesis of embryonic epithelium morphogenesis of an epithelium neural plate development neural plate morphogenesis muscle cell fate commitment muscle cell differentiation cell fate commitment ear morphogenesis otolith development sensory organ morphogenesis inner ear morphogenesis otolith morphogenesis protein localization localization cellular localization receptor clustering cellular macromolecule localization macromolecule localization localization within membrane protein localization to membrane heart morphogenesis embryonic heart tube development tube morphogenesis embryonic heart tube morphogenesis heart looping determination of bilateral symmetry epithelial tube morphogenesis determination of left/right symmetry specification of symmetry determination of heart left/right asymmetry regionalization left/right pattern formation neural plate pattern specification cellular response to stimulus cell surface receptor signaling pathway response to stimulus signaling smoothened signaling pathway cell communication signal transduction tube formation epithelial tube formation myotube cell development skeletal muscle fiber development skeletal muscle tissue development myotube differentiation striated muscle tissue development skeletal muscle organ development striated muscle cell development muscle cell development muscle tissue development striated muscle cell differentiation neuron fate specification neuron fate commitment cell fate specification spinal cord motor neuron cell fate specification 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 retinal ganglion cell axon guidance cerebellum morphogenesis hindbrain morphogenesis cerebellum development metencephalon development positive regulation of cell communication positive regulation of signal transduction positive regulation of biological process regulation of signal transduction positive regulation of response to stimulus positive regulation of smoothened signaling pathway positive regulation of cellular process regulation of smoothened signaling pathway regulation of signaling regulation of response to stimulus regulation of cell communication positive regulation of signaling endothelial cell fate commitment endothelium development epithelial cell fate commitment arterial endothelial cell fate commitment epithelial cell differentiation blood vessel endothelial cell differentiation blood vessel endothelial cell fate commitment blood vessel development endothelial cell differentiation vasculature development arterial endothelial cell differentiation commissural neuron axon guidance cardiac chamber development cardiac ventricle development endocrine pancreas development oligodendrocyte development oligodendrocyte differentiation telencephalon development semicircular canal morphogenesis semicircular canal development blood vessel morphogenesis vasculogenesis forebrain dorsal/ventral pattern formation dorsal/ventral pattern formation forebrain regionalization embryonic neurocranium morphogenesis embryonic digestive tract morphogenesis digestive tract development digestive tract morphogenesis embryonic digestive tract development embryonic camera-type eye development smooth muscle tissue development embryonic pattern specification cellular component assembly involved in morphogenesis non-membrane-bounded organelle assembly cellular component biogenesis cellular anatomical entity morphogenesis cellular component assembly actin filament-based process actomyosin structure organization actin cytoskeleton organization organelle assembly myofibril assembly organelle organization supramolecular fiber organization cytoskeleton organization cardiac endothelial cell differentiation endocardium development endocardial cell differentiation anterior/posterior pattern specification aorta morphogenesis artery development aorta development dorsal aorta morphogenesis artery morphogenesis dorsal aorta development angioblast cell migration from lateral mesoderm to midline angioblast cell migration cell migration cell motility somite development	somatodendritic compartment cell projection dendrite dendritic tree neuron projection cellular anatomical entity plasma membrane bounded cell projection membrane-bounded organelle organelle cilium cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036790	Frizzled cysteine-rich domain superfamily	Homologous Superfamily
A, B	IPR041771	Smoothened, cysteine-rich domain	Domain
A, B	IPR017981	GPCR, family 2-like, 7TM	Domain
A, B	IPR000539	Frizzled/Smoothened, 7TM	Domain
A, B	IPR020067	Frizzled domain	Domain
A, B	IPR035683	Smoothened, 7TM	Domain
A, B	IPR015526	Frizzled/secreted frizzled-related protein	Family

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.