RCSB PDB

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species
A	d2prua_	All alpha proteins	EF Hand-like	EF-hand	S100 proteins	Calcyclin (S100)	human (Homo sapiens ) [TaxId: 9606 ]
B	d2prub_	All alpha proteins	EF Hand-like	EF-hand	S100 proteins	Calcyclin (S100)	human (Homo sapiens ) [TaxId: 9606 ]

Chains

Domain Info

Class

Fold

Superfamily

Family

Domain

Species

d2prua_

human (Homo sapiens ) [TaxId: 9606 ]

d2prub_

human (Homo sapiens ) [TaxId: 9606 ]

Chain	Domain	Class	Architecture	Topology	Homology
A	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1
B	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1

Chain

Domain

Class

Architecture

Topology

Homology

1.10.238.10

1.10.238.10

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Identifier	Description	Comments	Source
A, B	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, B	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

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Protein S100-B	binding calcium ion binding ion binding cation binding metal ion binding protein binding calcium-dependent protein binding identical protein binding protein homodimerization activity protein dimerization activity signaling receptor binding RAGE receptor binding S100 protein binding cytoskeletal protein binding tau protein binding zinc ion binding transition metal ion binding	cell population proliferation positive regulation of cell population proliferation cellular process regulation of cell population proliferation positive regulation of biological process positive regulation of cellular process regulation of biological process regulation of cellular process biological regulation response to endogenous stimulus response to hormone response to organic substance response to organic cyclic compound response to corticosteroid response to lipid response to chemical response to steroid hormone response to stimulus response to glucocorticoid response to methylmercury	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol extracellular region extracellular space organelle membrane-bounded organelle intracellular organelle intracellular membrane-bounded organelle somatodendritic compartment neuronal cell body cell body nucleus nucleoplasm membrane-enclosed lumen nuclear lumen organelle lumen intracellular organelle lumen perinuclear region of cytoplasm

Chains

Polymer

Molecular Function

Biological Process

Cellular Component

A, B

Protein S100-B

176528 Biological Macromolecular Structures Enabling Breakthroughs in Research and Education

2PRU

NMR Structure of Human apoS100B at 10C

Domain Annotation: SCOP Classification SCOP Database (version: 2.0) Homepage

Domain Annotation: CATH CATH Database (version 4.2.0) Homepage

Protein Family Annotation Pfam Database Homepage

Gene Product Annotation Gene Product Annotation

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176528 Biological Macromolecular Structures Enabling Breakthroughs in Research and Education

2PRU

NMR Structure of Human apoS100B at 10C

Domain Annotation: SCOP Classification SCOP Database (version: 2.0) Homepage

Domain Annotation: CATH CATH Database (version 4.2.0) Homepage

Protein Family Annotation Pfam Database Homepage

Gene Product Annotation Gene Product Annotation