1xo5: Difference between revisions

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-[[Image:1xo5.jpg|left|200px]]
-<!--
+==Crystal structure of CIB1, an EF-hand, integrin and kinase-binding protein==
-The line below this paragraph, containing "STRUCTURE_1xo5", creates the "Structure Box" on the page.
+<StructureSection load='1xo5' size='340' side='right'caption='[[1xo5]], [[Resolution|resolution]] 1.99&Aring;' scene=''>
-You may change the PDB parameter (which sets the PDB file loaded into the applet)
+== Structural highlights ==
-or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
+<table><tr><td colspan='2'>[[1xo5]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XO5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XO5 FirstGlance]. <br>
-or leave the SCENE parameter empty for the default display.
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.99&#8491;</td></tr>
--->
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
-{{STRUCTURE_1xo5|  PDB=1xo5  |  SCENE=  }}
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1xo5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xo5 OCA], [https://pdbe.org/1xo5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xo5 RCSB], [https://www.ebi.ac.uk/pdbsum/1xo5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xo5 ProSAT]</span></td></tr>
+</table>
-'''Crystal structure of CIB1, an EF-hand, integrin and kinase-binding protein'''
+== Function ==
+[https://www.uniprot.org/uniprot/CIB1_HUMAN CIB1_HUMAN] May convert the inactive conformation of integrin alpha-IIb/beta3 to an active form through binding to the integrin cytoplasmic domain. Induces cell migration and spreading mediated through integrin (possibly via focal adhesion complexes). Functions as a negative regulator of stress activated MAP kinase (MAPK) signaling pathways. May play a role in regulation of apoptosis. Interacts with and up-regulates PTK2/FAK1 activity. Down regulates inositol 1,4,5-trisphosphate receptor-dependent calcium signaling. Participates in endomitotic cell cycle, a form of mitosis in which both karyokinesis and cytokinesis are interrupted and is a hallmark of megakaryocyte differentiation.<ref>PMID:12714504</ref> <ref>PMID:12881299</ref> <ref>PMID:15685448</ref> <ref>PMID:18627437</ref> <ref>PMID:19805025</ref> <ref>PMID:21264284</ref>
+== Evolutionary Conservation ==
-==Overview==
+[[Image:Consurf_key_small.gif|200px|right]]
-CIB1 (CIB) is an EF-hand-containing protein that binds multiple effector proteins, including the platelet alphaIIbbeta3 integrin and several serine/threonine kinases and potentially modulates their function. The crystal structure for Ca(2+)-bound CIB1 has been determined at 2.0 A resolution and reveals a compact alpha-helical protein containing four EF-hands, the last two of which bind calcium ions in the standard fashion seen in many other EF-hand proteins. CIB1 shares high structural similarity with calcineurin B and the neuronal calcium sensor (NCS) family of EF-hand-containing proteins. Most importantly, like calcineurin B and NCS proteins, which possess a large hydrophobic pocket necessary for ligand binding, CIB1 contains a hydrophobic pocket that has been implicated in ligand binding by previous mutational analysis. However, unlike several NCS proteins, Ca(2+)-bound CIB1 is largely monomeric whether bound to a relevant peptide ligand or ligand-free. Differences in structure, oligomeric state, and phylogeny define a new family of CIB1-related proteins that extends from arthropods to humans.
+Check<jmol>
+  <jmolCheckbox>
-==About this Structure==
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/xo/1xo5_consurf.spt"</scriptWhenChecked>
-XO5 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XO5 OCA].
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <text>to colour the structure by Evolutionary Conservation</text>
-==Reference==
+  </jmolCheckbox>
-Structural and biochemical characterization of CIB1 delineates a new family of EF-hand-containing proteins., Gentry HR, Singer AU, Betts L, Yang C, Ferrara JD, Sondek J, Parise LV, J Biol Chem. 2005 Mar 4;280(9):8407-15. Epub 2004 Dec 1. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15574431 15574431]
+</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1xo5 ConSurf].
+<div style="clear:both"></div>
+== References ==
+<references/>
+__TOC__
+</StructureSection>
 [[Category: Homo sapiens]]
-[[Category: Single protein]]
+[[Category: Large Structures]]
-[[Category: Betts, L.]]
+[[Category: Betts L]]
-[[Category: Ferrara, J D.]]
+[[Category: Ferrara JD]]
-[[Category: Gentry, H R.]]
+[[Category: Gentry HR]]
-[[Category: Parise, L V.]]
+[[Category: Parise LV]]
-[[Category: Singer, A U.]]
+[[Category: Singer AU]]
-[[Category: Sondek, J.]]
+[[Category: Sondek J]]
-[[Category: Yang, C.]]
+[[Category: Yang C]]
-[[Category: Calcium and integrin binding]]
-[[Category: Calmyrin]]
-[[Category: Ef-hand]]
-[[Category: Kinase interacting protein]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 15:17:11 2008''