ISDA

Entry Detail

PDB ID:

2RAN

Keywords:

CALCIUM/PHOSPHOLIPID-BINDING PROTEIN

Title:

RAT ANNEXIN V CRYSTAL STRUCTURE: CA2+-INDUCED CONFORMATIONAL CHANGES

Biological Source:

Source Organism:

Rattus norvegicus

PDB Version:

Deposition Date:

1994-09-01

Release Date:

1994-11-30

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.89 Å

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

H 3

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:ANNEXIN V
Chain IDs:A
Chain Length:316
Number of Molecules:1
Biological Source:Rattus norvegicus

UniProt ID:P14668 Pfam ID:PF00191

Ligand Molecules

SO4

Primary Citation

Rat annexin V crystal structure: Ca(2+)-induced conformational changes.

Concha, N.O, Head, J.F, Kaetzel, M.A, Dedman, J.R, Seaton, B.A.Show

Science 261 1321 1324 (1993)

PMID: 8362244

Abstact

Annexins are a family of calcium- and phospholipid-binding proteins implicated in mediating membrane-related processes such as secretion, signal transduction, and ion channel activity. The crystal structure of rat annexin V was solved to 1.9 angstrom resolution by multiple isomorphous replacement. Unlike previously solved annexin V structures, all four domains bound calcium in this structure. Calcium binding in the third domain induced a large relocation of the calcium-binding loop regions, exposing the single tryptophan residue to the solvent. These alterations in annexin V suggest a role for domain 3 in calcium-triggered interaction with phospholipid membranes.

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Primary Citation of related structures