2qfa

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[[Image:2qfa.jpg|left|200px]]
 
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==Crystal structure of a Survivin-Borealin-INCENP core complex==
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The line below this paragraph, containing "STRUCTURE_2qfa", creates the "Structure Box" on the page.
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<StructureSection load='2qfa' size='340' side='right'caption='[[2qfa]], [[Resolution|resolution]] 1.40&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2qfa]] is a 3 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=2QFA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QFA FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.4&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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{{STRUCTURE_2qfa| PDB=2qfa | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2qfa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qfa OCA], [https://pdbe.org/2qfa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qfa RCSB], [https://www.ebi.ac.uk/pdbsum/2qfa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qfa ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/BIRC5_HUMAN BIRC5_HUMAN] Multitasking protein that has dual roles in promoting cell proliferation and preventing apoptosis. Component of a chromosome passage protein complex (CPC) which is essential for chromosome alignment and segregation during mitosis and cytokinesis. Acts as an important regulator of the localization of this complex; directs CPC movement to different locations from the inner centromere during prometaphase to midbody during cytokinesis and participates in the organization of the center spindle by associating with polymerized microtubules. The complex with RAN plays a role in mitotic spindle formation by serving as a physical scaffold to help deliver the RAN effector molecule TPX2 to microtubules. May counteract a default induction of apoptosis in G2/M phase. The acetylated form represses STAT3 transactivation of target gene promoters. May play a role in neoplasia. Inhibitor of CASP3 and CASP7. Isoform 2 and isoform 3 do not appear to play vital roles in mitosis. Isoform 3 shows a marked reduction in its anti-apoptotic effects when compared with the displayed wild-type isoform.<ref>PMID:10626797</ref> <ref>PMID:9859993</ref> <ref>PMID:12773388</ref> <ref>PMID:16322459</ref> <ref>PMID:16291752</ref> <ref>PMID:18591255</ref> <ref>PMID:20826784</ref> <ref>PMID:21536684</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/qf/2qfa_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=2qfa ConSurf].
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<div style="clear:both"></div>
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'''Crystal structure of a Survivin-Borealin-INCENP core complex'''
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==See Also==
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*[[Borealin|Borealin]]
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*[[Centromere protein 3D structure|Centromere protein 3D structure]]
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==Overview==
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*[[Survivin|Survivin]]
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The chromosomal passenger complex (CPC) is a key regulator of chromosome segregation and cytokinesis. CPC functions are connected to its localization. The complex first localizes to centromeres and later associates with the central spindle and midbody. Survivin, Borealin, and INCENP are the three components of the CPC that regulate the activity and localization of its enzymatic component, the kinase Aurora B. We determined the 1.4 A resolution crystal structure of the regulatory core of the CPC, revealing that Borealin and INCENP associate with the helical domain of Survivin to form a tight three-helical bundle. We used siRNA rescue experiments with structure-based mutants to explore the requirements for CPC localization. We show that the intertwined structural interactions of the core components lead to functional interdependence. Association of the core "passenger" proteins creates a single structural unit, whose composite molecular surface presents conserved residues essential for central spindle and midbody localization.
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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2QFA is a [[Protein complex]] structure of sequences 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=2QFA OCA].
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</StructureSection>
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==Reference==
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Structure of a Survivin-Borealin-INCENP core complex reveals how chromosomal passengers travel together., Jeyaprakash AA, Klein UR, Lindner D, Ebert J, Nigg EA, Conti E, Cell. 2007 Oct 19;131(2):271-85. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17956729 17956729]
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Protein complex]]
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[[Category: Large Structures]]
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[[Category: Conti, E.]]
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[[Category: Conti E]]
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[[Category: Ebert, J.]]
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[[Category: Ebert J]]
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[[Category: Jeyaprakash, A A.]]
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[[Category: Jeyaprakash AA]]
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[[Category: Klein, U R.]]
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[[Category: Klein UR]]
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[[Category: Lindner, D.]]
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[[Category: Lindner D]]
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[[Category: Nigg, E A.]]
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[[Category: Nigg EA]]
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[[Category: Alternative splicing]]
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[[Category: Apoptosis]]
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[[Category: Cell cycle]]
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[[Category: Cell cycle/cell cycle/cell cycle complex]]
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[[Category: Cell division]]
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[[Category: Centromere]]
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[[Category: Chromosomal protein]]
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[[Category: Coiled coil]]
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[[Category: Cytoplasm]]
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[[Category: Long helix]]
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[[Category: Metal-binding]]
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[[Category: Microtubule]]
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[[Category: Mitosis]]
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[[Category: Nucleus]]
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[[Category: Phosphorylation]]
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[[Category: Polymorphism]]
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[[Category: Protease inhibitor]]
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[[Category: Protein complex]]
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[[Category: Thiol protease inhibitor]]
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[[Category: Three-helical-bundle]]
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[[Category: Zinc]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 14:51:27 2008''
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Current revision

Crystal structure of a Survivin-Borealin-INCENP core complex

PDB ID 2qfa

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