1y1a: Difference between revisions

From Proteopedia
Jump to navigationJump to search
← Older edit
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,330,058 edits
No edit summary
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,330,058 edits
No edit summary
 
(22 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[Image:1y1a.gif|left|200px]]<br />
<applet load="1y1a" size="450" color="white" frame="true" align="right" spinBox="true"
caption="1y1a, resolution 2.30&Aring;" />
'''CRYSTAL STRUCTURE OF CALCIUM AND INTEGRIN BINDING PROTEIN'''<br />


==Overview==
==CRYSTAL STRUCTURE OF CALCIUM AND INTEGRIN BINDING PROTEIN==
Calcium- and integrin-binding protein 1 (CIB1) is involved in the process, of platelet aggregation by binding the cytoplasmic tail of the alpha(IIb), subunit of the platelet-specific integrin alpha(Iib)beta(3). Although, poorly understood, it is widely believed that CIB1 acts as a global, signaling regulator because it is expressed in many tissues that do not, express integrin alpha(Iib)beta(3). We report the structure of human CIB1, to a resolution of 2.3 A, crystallized as a dimer. The dimer interface, includes an extensive hydrophobic patch in a crystal form with 80% solvent, content. Although the dimer form of CIB1 may not be physiologically, relevant, this intersub-unit surface is likely to be linked to alpha(IIb), binding and to the binding of other signaling partner proteins. The, ... [[http://ispc.weizmann.ac.il/pmbin/getpm?15840829 (full description)]]
<StructureSection load='1y1a' size='340' side='right'caption='[[1y1a]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
 
== Structural highlights ==
==About this Structure==
<table><tr><td colspan='2'>[[1y1a]] 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=1Y1A OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Y1A FirstGlance]. <br>
1Y1A is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]] with CA and GSH as [[http://en.wikipedia.org/wiki/ligands ligands]]. Structure known Active Sites: CA1, CA2, CA3 and CA4. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1Y1A OCA]].  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#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>, <scene name='pdbligand=GSH:GLUTATHIONE'>GSH</scene></td></tr>
==Reference==
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1y1a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1y1a OCA], [https://pdbe.org/1y1a PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1y1a RCSB], [https://www.ebi.ac.uk/pdbsum/1y1a PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1y1a ProSAT]</span></td></tr>
The crystal structure of calcium- and integrin-binding protein 1: insights into redox regulated functions., Blamey CJ, Ceccarelli C, Naik UP, Bahnson BJ, Protein Sci. 2005 May;14(5):1214-21. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=15840829 15840829]
</table>
== 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 ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/y1/1y1a_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1y1a ConSurf].
<div style="clear:both"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Bahnson, B.J.]]
[[Category: Bahnson BJ]]
[[Category: Blamey, C.J.]]
[[Category: Blamey CJ]]
[[Category: Ceccarelli, C.]]
[[Category: Ceccarelli C]]
[[Category: Naik, U.P.]]
[[Category: Naik UP]]
[[Category: CA]]
[[Category: GSH]]
[[Category: calcium]]
[[Category: calcium-binding protein]]
[[Category: ef-hand]]
[[Category: glutathiolation]]
[[Category: glutathione]]
[[Category: integrin]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Oct 30 12:17:19 2007''
Retrieved from "https://proteopedia.org/1y1a"