View source for 2oxx

==Protein kinase CK2 in complex with tetrabromobenzoimidazole derivatives K17, K22 and K32==
<StructureSection load='2oxx' size='340' side='right' caption='[[2oxx]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2oxx]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Maize Maize]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OXX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2OXX FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K22:4,5,6,7-TETRABROMO-1H,3H-BENZIMIDAZOL-2-THIONE'>K22</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1j91|1j91]], [[1zoh|1zoh]], [[1zog|1zog]], [[1zoe|1zoe]], [[2oxd|2oxd]], [[2oxy|2oxy]]</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ACK2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4577 MAIZE])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1 2.7.11.1] </span></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=2oxx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2oxx OCA], [http://pdbe.org/2oxx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2oxx RCSB], [http://www.ebi.ac.uk/pdbsum/2oxx PDBsum]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/CSK2A_MAIZE CSK2A_MAIZE]] Casein kinases are operationally defined by their preferential utilization of acidic proteins such as caseins as substrates. The alpha chain contains the catalytic site. 
== 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/ox/2oxx_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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
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== Publication Abstract from PubMed ==
CK2 is a highly pleiotropic Ser/Thr protein kinase that is able to promote cell survival and enhance the tumour phenotype under specific circumstances. We have determined the crystal structure of three new complexes with tetrabromobenzimidazole derivatives that display K(i) values between 0.15 and 0.30 microM. A comparative analysis of these data with those of four other inhibitors of the same family revealed the presence of some highly conserved water molecules in the ATP-binding site. These waters reside near Lys68, in an area with a positive electrostatic potential that is able to attract and orient negatively charged ligands. The presence of this positive region and two unique bulky residues that are typical of CK2, Ile66 and Ile174, play a critical role in determining the ligand orientation and binding selectivity.

The ATP-binding site of protein kinase CK2 holds a positive electrostatic area and conserved water molecules.,Battistutta R, Mazzorana M, Cendron L, Bortolato A, Sarno S, Kazimierczuk Z, Zanotti G, Moro S, Pinna LA Chembiochem. 2007 Oct 15;8(15):1804-9. PMID:17768728<ref>PMID:17768728</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 2oxx" style="background-color:#fffaf0;"></div>

==See Also==
*[[Casein kinase|Casein kinase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Maize]]
[[Category: Non-specific serine/threonine protein kinase]]
[[Category: Battistutta, R]]
[[Category: Cendron, L]]
[[Category: Zanotti, G]]
[[Category: Inhibitor]]
[[Category: Protein kinase ck2]]
[[Category: Tetrabromobenzoimidazole derivative]]
[[Category: Transferase]]