2jaq

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[[Image:2jaq.png|left|200px]]
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==STRUCTURE OF DEOXYADENOSINE KINASE FROM M. MYCOIDES WITH BOUND DCTP==
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<StructureSection load='2jaq' size='340' side='right' caption='[[2jaq]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2jaq]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycoplasma_mycoides_subsp._mycoides_sc Mycoplasma mycoides subsp. mycoides sc]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JAQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2JAQ FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DCP:2-DEOXYCYTIDINE-5-TRIPHOSPHATE'>DCP</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2jas|2jas]], [[2jat|2jat]]</td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2jaq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2jaq OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2jaq RCSB], [http://www.ebi.ac.uk/pdbsum/2jaq PDBsum]</span></td></tr>
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<table>
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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/ja/2jaq_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/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Deoxyribonucleoside kinases (dNKs) catalyze the transfer of a phosphoryl group from ATP to a deoxyribonucleoside (dN), a key step in DNA precursor synthesis. Recently structural information concerning dNKs has been obtained, but no structure of a bacterial dCK/dGK enzyme is known. Here we report the structure of such an enzyme, represented by deoxyadenosine kinase from Mycoplasma mycoides subsp. mycoides small colony type (Mm-dAK). Superposition of Mm-dAK with its human counterpart's deoxyguanosine kinase (dGK) and deoxycytidine kinase (dCK) reveals that the overall structures are very similar with a few amino acid alterations in the proximity of the active site. To investigate the substrate specificity, Mm-dAK has been crystallized in complex with dATP and dCTP, as well as the products dCMP and dCDP. Both dATP and dCTP bind to the enzyme in a feedback-inhibitory manner with the dN part in the deoxyribonucleoside binding site and the triphosphates in the P-loop. Substrate specificity studies with clinically important nucleoside analogs as well as several phosphate donors were performed. Thus, in this study we combine structural and kinetic data to gain a better understanding of the substrate specificity of the dCK/dGK family of enzymes. The structure of Mm-dAK provides a starting point for making new anti bacterial agents against pathogenic bacteria.
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{{STRUCTURE_2jaq| PDB=2jaq | SCENE= }}
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Structure-function analysis of a bacterial deoxyadenosine kinase reveals the basis for substrate specificity.,Welin M, Wang L, Eriksson S, Eklund H J Mol Biol. 2007 Mar 9;366(5):1615-23. Epub 2006 Dec 8. PMID:17229440<ref>PMID:17229440</ref>
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===STRUCTURE OF DEOXYADENOSINE KINASE FROM M. MYCOIDES WITH BOUND DCTP===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_17229440}}
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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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[[2jaq]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycoplasma_mycoides_subsp._mycoides_sc Mycoplasma mycoides subsp. mycoides sc]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JAQ OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:017229440</ref><references group="xtra"/>
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[[Category: Mycoplasma mycoides subsp. mycoides sc]]
[[Category: Mycoplasma mycoides subsp. mycoides sc]]
[[Category: Eklund, H.]]
[[Category: Eklund, H.]]

Revision as of 09:16, 30 September 2014

STRUCTURE OF DEOXYADENOSINE KINASE FROM M. MYCOIDES WITH BOUND DCTP

2jaq, resolution 2.30Å

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