1rec
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(New page: 200px<br /><applet load="1rec" size="450" color="white" frame="true" align="right" spinBox="true" caption="1rec, resolution 1.9Å" /> '''THREE-DIMENSIONAL STR...)
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Revision as of 23:24, 20 November 2007
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THREE-DIMENSIONAL STRUCTURE OF RECOVERIN, A CALCIUM SENSOR IN VISION
Overview
Recoverin, a recently discovered member of the EF hand superfamily, serves, as a calcium sensor in vision. We report here the crystal structure of, recombinant unmyristoylated recoverin at 1.9 A resolution. The four EF, hands of the protein are arranged in a compact array that contrasts with, the dumbbell shape of calmodulin and troponin C. A calcium ion is bound to, EF hand 3, while EF hand 2 can bind samarium but not calcium in this, crystal form. The other two EF hands have novel structural features that, prevent or impair calcium binding. A concave hydrophobic surface formed by, EF hands 1 and 2 may participate in the read out of calcium signals by, recoverin and its homologs.
About this Structure
1REC is a Single protein structure of sequence from Bos taurus with CA as ligand. Full crystallographic information is available from OCA.
Reference
Three-dimensional structure of recoverin, a calcium sensor in vision., Flaherty KM, Zozulya S, Stryer L, McKay DB, Cell. 1993 Nov 19;75(4):709-16. PMID:8242744
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