1iku

<StructureSection load='1iku' size='340' side='right'caption='[[1iku]], [[NMR_Ensembles_of_Models | 22 NMR models]]' scene=''>

<table><tr><td colspan='2'>[[1iku]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IKU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1IKU FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MYR:MYRISTIC+ACID'>MYR</scene></td></tr>

<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1iku FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1iku OCA], [http://pdbe.org/1iku PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1iku RCSB], [http://www.ebi.ac.uk/pdbsum/1iku PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1iku ProSAT]</span></td></tr>

[[http://www.uniprot.org/uniprot/RECO_BOVIN RECO_BOVIN]] Seems to be implicated in the pathway from retinal rod guanylate cyclase to rhodopsin. May be involved in the inhibition of the phosphorylation of rhodopsin in a calcium-dependent manner. The calcium-bound recoverin prolongs the photoresponse.<ref>PMID:8097896</ref> <ref>PMID:8392055</ref>

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== Publication Abstract from PubMed ==

Recoverin, a retinal calcium-binding protein of relative molecular mass (M(r)) 23K, participates in the recovery phase of visual excitation and in adaptation to background light. The Ca(2+)-bound form of recoverin prolongs the photoresponse, probably by blocking phosphorylation of photoexcited rhodopsin. Retinal recoverin contains a covalently attached myristoyl group or related acyl group at its amino terminus and two Ca(2+)-binding sites. Ca2+ binding to myristoylated, but not unmyristoylated, recoverin induces its translocation to bilayer membranes, indicating that the myristoyl group is essential to the read-out of calcium signals (calcium-myristoyl switch). Here we present the solution structure of Ca(2+)-free, myristoylated recombinant recoverin obtained by heteronuclear multidimensional NMR spectroscopy. The myristoyl group is sequestered in a deep hydrophobic pocket formed by many aromatic and other hydrophobic residues from five flanking helices.

Sequestration of the membrane-targeting myristoyl group of recoverin in the calcium-free state.,Tanaka T, Ames JB, Harvey TS, Stryer L, Ikura M Nature. 1995 Aug 3;376(6539):444-7. PMID:7630423<ref>PMID:7630423</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

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<div class="pdbe-citations 1iku" style="background-color:#fffaf0;"></div>

[[Category: Ames, J B]]

[[Category: Harvey, T S]]

[[Category: Ikura, M]]

[[Category: Stryer, L]]

[[Category: Tanaka, T]]

[[Category: Calcuim-binding protein]]