3icb Summary

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PDB entry 3icb (supersedes 2icb)

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

The structure was published by Szebenyi, D.M. and Moffat, K., in 1986 in a paper entitled "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." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.3 Å and deposited in 1986.

The experimental data on which the structure is based was also deposited.

The PDB entry contains the structure of CALCIUM-BINDING PROTEIN. This molecule has the UniProt identifier P02633 (S100G_BOVIN)search. The sample contained 75 residues which is 95% of the natural sequence. Out of 75 residues 75 were observed and are deposited in the PDB.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule is most likely monomeric.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A CALCIUM-BINDING PROTEIN P02633 (5-79) (S100G_BOVIN)search Bos taurussearch 92% 75 100%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P02633 (5 - 79) CALCIUM-BINDING PROTEIN Bos taurus

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A (P02633) Calbindin D9Ksearch EF-handsearch PF00036: EF handsearch, PF01023: S-100/ICaBP type calcium binding domainsearch

Chain ID Molecular function (GO) Cellular component (GO)
A (P02633) calcium ion bindingsearch metal ion bindingsearch vitamin D bindingsearch apical plasma membranesearch basolateral plasma membranesearch

Chain InterPro annotation
A S100/Calbindin-D9k, conserved sitesearch EF-hand domainsearch EF-hand domain pairsearch S100/CaBP-9k-type, calcium binding, subdomainsearch EF-Hand 1, calcium-binding sitesearch Protein S100-Gsearch