1m0e: Difference between revisions

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[[Image:1m0e.png|left|200px]]
==ZEBULARINE: A NOVEL DNA METHYLATION INHIBITOR THAT FORMS A COVALENT COMPLEX WITH DNA METHYLTRANSFERASE==
<StructureSection load='1m0e' size='340' side='right' caption='[[1m0e]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1m0e]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Haemophilus_haemolyticus Haemophilus haemolyticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M0E OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1M0E FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</scene><br>
<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=Z:1-(2-DEOXY-5-O-PHOSPHONO-BETA-D-ERYTHRO-PENTOFURANOSYL)PYRIMIDIN-2(1H)-ONE'>Z</scene></td></tr>
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[9mht|9mht]]</td></tr>
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Deleted_entry Deleted entry], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.73 2.1.1.73] </span></td></tr>
<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=1m0e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1m0e OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1m0e RCSB], [http://www.ebi.ac.uk/pdbsum/1m0e PDBsum]</span></td></tr>
<table>
== 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/m0/1m0e_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>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Mechanism-based inhibitors of enzymes, which mimic reactive intermediates in the reaction pathway, have been deployed extensively in the analysis of metabolic pathways and as candidate drugs. The inhibition of cytosine-[C5]-specific DNA methyltransferases (C5 MTases) by oligodeoxynucleotides containing 5-azadeoxycytidine (AzadC) and 5-fluorodeoxycytidine (FdC) provides a well-documented example of mechanism-based inhibition of enzymes central to nucleic acid metabolism. Here, we describe the interaction between the C5 MTase from Haemophilus haemolyticus (M.HhaI) and an oligodeoxynucleotide duplex containing 2-H pyrimidinone, an analogue often referred to as zebularine and known to give rise to high-affinity complexes with MTases. X-ray crystallography has demonstrated the formation of a covalent bond between M.HhaI and the 2-H pyrimidinone-containing oligodeoxynucleotide. This observation enables a comparison between the mechanisms of action of 2-H pyrimidinone with other mechanism-based inhibitors such as FdC. This novel complex provides a molecular explanation for the mechanism of action of the anti-cancer drug zebularine.


{{STRUCTURE_1m0e|  PDB=1m0e  |  SCENE=  }}
Zebularine: a novel DNA methylation inhibitor that forms a covalent complex with DNA methyltransferases.,Zhou L, Cheng X, Connolly BA, Dickman MJ, Hurd PJ, Hornby DP J Mol Biol. 2002 Aug 23;321(4):591-9. PMID:12206775<ref>PMID:12206775</ref>


===ZEBULARINE: A NOVEL DNA METHYLATION INHIBITOR THAT FORMS A COVALENT COMPLEX WITH DNA METHYLTRANSFERASE===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_12206775}}
 
==About this Structure==
[[1m0e]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Haemophilus_haemolyticus Haemophilus haemolyticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M0E OCA].


==See Also==
==See Also==
*[[DNA methyltransferase|DNA methyltransferase]]
*[[DNA methyltransferase|DNA methyltransferase]]
 
*[[HhaI DNA methyltransferase|HhaI DNA methyltransferase]]
==Reference==
== References ==
<ref group="xtra">PMID:012206775</ref><references group="xtra"/>
<references/>
__TOC__
</StructureSection>
[[Category: Deleted entry]]
[[Category: Deleted entry]]
[[Category: Haemophilus haemolyticus]]
[[Category: Haemophilus haemolyticus]]
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