Annotations: 5KZZ

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Frizzled cysteine-rich domain	8086316	4002966	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Frizzled domain-like	8086317	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	e5kzzA1	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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	Smoothened	molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity patched binding protein binding binding signaling receptor binding cation binding ion binding metal ion binding small molecule binding	developmental process multicellular organism development multicellular organismal process anatomical structure development pattern specification process cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation smoothened signaling pathway cell communication developmental process multicellular organism development multicellular organismal process anatomical structure development pattern specification process cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation smoothened signaling pathway cell communication cellular process signal transduction central nervous system development nervous system development system development tissue development Wnt signaling pathway commissural neuron axon guidance axonogenesis cellular developmental process cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell morphogenesis cellular component organization neurogenesis cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation cellular component organization or biogenesis plasma membrane bounded cell projection organization axon guidance axon development cell morphogenesis involved in neuron differentiation generation of neurons anatomical structure morphogenesis neuron projection guidance neuron development	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection cell periphery plasma membrane membrane somatodendritic compartment dendrite dendritic tree neuron projection

InterPro: Protein Family Classification InterPro Database Homepage

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

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.