View source for 3uig


==crystal structure of human Survivin in complex with T3 phosphorylated H3(1-15) peptide==
<StructureSection load='3uig' size='340' side='right'caption='[[3uig]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3uig]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UIG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3UIG FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=TPO:PHOSPHOTHREONINE'>TPO</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3uih|3uih]], [[3uii|3uii]], [[3uij|3uij]], [[3uik|3uik]]</div></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BIRC5, API4, IAP4 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3uig FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3uig OCA], [https://pdbe.org/3uig PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3uig RCSB], [https://www.ebi.ac.uk/pdbsum/3uig PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3uig ProSAT]</span></td></tr>
</table>
== Function ==
[[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>  
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Survivin is an inhibitor of apoptosis family protein implicated in apoptosis and mitosis. In apoptosis, it has been shown to recognize the Smac/DIABLO protein. It is also a component of the chromosomal passenger complex, a key player during mitosis. Recently, Survivin was identified in vitro and in vivo as the direct binding partner for phosphorylated Thr3 on histone H3 (H3T3ph). We have undertaken structural and binding studies to investigate the molecular basis underlying recognition of H3T3ph and Smac/DIABLO N-terminal peptides by Survivin. Our crystallographic studies establish recognition of N-terminal Ala in both complexes and identify intermolecular hydrogen-bonding interactions in the Survivin phosphate-binding pocket that contribute to H3T3ph mark recognition. In addition, our calorimetric data establish that Survivin binds tighter to the H3T3ph-containing peptide relative to the N-terminal Smac/DIABLO peptide, and this preference can be reversed through structure-guided mutations that increase the hydrophobicity of the phosphate-binding pocket.

Structural Basis for Recognition of H3T3ph and Smac/DIABLO N-terminal Peptides by Human Survivin.,Du J, Kelly AE, Funabiki H, Patel DJ Structure. 2012 Jan 11;20(1):185-95. PMID:22244766<ref>PMID:22244766</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3uig" style="background-color:#fffaf0;"></div>

==See Also==
*[[Survivin|Survivin]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Human]]
[[Category: Large Structures]]
[[Category: Du, J]]
[[Category: Patel, D J]]
[[Category: Apoptosis-apoptosis inhibitor complex]]
[[Category: Bir domain]]
[[Category: Mitosis]]
[[Category: Phosphorylation]]
[[Category: Smac/diablo binding]]
[[Category: T3 phosphorylated h3 binding]]