1j7o Summary

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Solution structure of Calcium-calmodulin N-terminal domain

The structure was published by Chou, J.J., Li, S., Klee, C.B., and Bax, A., in 2001 in a paper entitled "Solution structure of Ca(2+)-calmodulin reveals flexible hand-like properties of its domains." (abstract).

The structure was determined using NMR spectroscopy and deposited in 2001.

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

The PDB entry contains the structure of Calmodulin. This molecule has the UniProt identifier P62158 (CALM_HUMAN)search. The sample contained 76 residues which is < 90% of the natural sequence. Out of 76 residues 76 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 Calmodulin P62158 (2-77) (CALM_HUMAN)search Homo sapienssearch 97% 76 100%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P62158 (2 - 77) Calmodulin Homo sapiens

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A (P62158) Calmodulin-likesearch EF-handsearch PF13499: EF-hand domain pairsearch, PF13833: EF-hand domain pairsearch

Chain ID Molecular function (GO)
A (P62158) calcium ion bindingsearch

Chain InterPro annotation
A EF-hand domainsearch EF-hand domain pairsearch EF-Hand 1, calcium-binding sitesearch