3ICB

THE REFINED STRUCTURE OF VITAMIN D-DEPENDENT CALCIUM-BINDING PROTEIN FROM BOVINE INTESTINE. MOLECULAR DETAILS, ION BINDING, AND IMPLICATIONS FOR THE STRUCTURE OF OTHER CALCIUM-BINDING PROTEINS

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
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: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3icba_	All alpha proteins	EF Hand-like	EF-hand	Calbindin D9K	Calbindin D9K	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	EF-hand	8037260	3001983	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)
A	S_100	e3icbA1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: S_100	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01023	S-100/ICaBP type calcium binding domain (S_100)	S-100/ICaBP type calcium binding domain	The S-100 domain is a subfamily of the EF-hand calcium binding proteins.	Domain
A	PF00036	EF hand (EF-hand_1)	EF hand	The EF-hands can be divided into two classes: signalling proteins and buffering/transport proteins. The first group is the largest and includes the most well-known members of the family such as calmodulin, troponin C and S100B. These proteins typica ...	The EF-hands can be divided into two classes: signalling proteins and buffering/transport proteins. The first group is the largest and includes the most well-known members of the family such as calmodulin, troponin C and S100B. These proteins typically undergo a calcium-dependent conformational change which opens a target binding site. The latter group is represented by calbindin D9k and do not undergo calcium dependent conformational changes.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CALCIUM-BINDING PROTEIN	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding vitamin binding organic cyclic compound binding vitamin D binding steroid binding lipid binding calcium-dependent protein binding protein binding	-	cell periphery basal part of cell membrane plasma membrane basal plasma membrane plasma membrane region cellular anatomical entity basolateral plasma membrane intracellular anatomical structure cytoplasm apical part of cell apical plasma membrane extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR013787	S100/CaBP-9k-type, calcium binding, subdomain	Domain
A	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A	IPR001751	S100/Calcium binding protein 7/8-like, conserved site	Conserved Site
A	IPR002048	EF-hand domain	Domain
A	IPR011992	EF-hand domain pair	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.