2np7

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[[Image:2np7.gif|left|200px]]
 
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{{Structure
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==Crystal structure of the adenine-specific DNA methyltransferase M.TaqI complexed with the cofactor analog AETA and a 10 bp DNA containing an abasic site analog at the target position and pyrrolo-dC at the target base partner position==
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|PDB= 2np7 |SIZE=350|CAPTION= <scene name='initialview01'>2np7</scene>, resolution 1.90&Aring;
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<StructureSection load='2np7' size='340' side='right'caption='[[2np7]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=3DR:1&#39;,2&#39;-DIDEOXYRIBOFURANOSE-5&#39;-PHOSPHATE'>3DR</scene>, <scene name='pdbligand=4PC:3-(2&#39;-DEOXY-5-O-PHOSPHONO-BETA-D-ERYTHRO-PENTOFURANOSYL)-6-METHYL-3,7-DIHYDRO-2H-PYRROLO[2,3-D]PYRIMIDIN-2-ONE'>4PC</scene>, <scene name='pdbligand=6MA:N6-METHYL-DEOXY-ADENOSINE-5&#39;-MONOPHOSPHATE'>6MA</scene>, <scene name='pdbligand=DA:2&#39;-DEOXYADENOSINE-5&#39;-MONOPHOSPHATE'>DA</scene>, <scene name='pdbligand=DC:2&#39;-DEOXYCYTIDINE-5&#39;-MONOPHOSPHATE'>DC</scene>, <scene name='pdbligand=DG:2&#39;-DEOXYGUANOSINE-5&#39;-MONOPHOSPHATE'>DG</scene>, <scene name='pdbligand=DT:THYMIDINE-5&#39;-MONOPHOSPHATE'>DT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NEA:5&#39;-DEOXY-5&#39;-[2-(AMINO)ETHYLTHIO]ADENOSINE'>NEA</scene>
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<table><tr><td colspan='2'>[[2np7]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NP7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2NP7 FirstGlance]. <br>
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Site-specific_DNA-methyltransferase_(adenine-specific) Site-specific DNA-methyltransferase (adenine-specific)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.72 2.1.1.72] </span>
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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]] 1.9&#8491;</td></tr>
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|GENE= taqIM ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=271 Thermus aquaticus])
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3DR:1,2-DIDEOXYRIBOFURANOSE-5-PHOSPHATE'>3DR</scene>, <scene name='pdbligand=4PC:3-(2-DEOXY-5-O-PHOSPHONO-BETA-D-ERYTHRO-PENTOFURANOSYL)-6-METHYL-3,7-DIHYDRO-2H-PYRROLO[2,3-D]PYRIMIDIN-2-ONE'>4PC</scene>, <scene name='pdbligand=6MA:N6-METHYL-DEOXY-ADENOSINE-5-MONOPHOSPHATE'>6MA</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NEA:5-DEOXY-5-[2-(AMINO)ETHYLTHIO]ADENOSINE'>NEA</scene></td></tr>
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|DOMAIN=
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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=2np7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2np7 OCA], [https://pdbe.org/2np7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2np7 RCSB], [https://www.ebi.ac.uk/pdbsum/2np7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2np7 ProSAT]</span></td></tr>
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|RELATEDENTRY=[[1g38|1G38]], [[2adm|2ADM]], [[1aqi|1AQI]], [[1aqj|1AQJ]], [[2ih2|2IH2]], [[2ih4|2IH4]], [[2ih5|2IH5]], [[2np6|2NP6]], [[2ibs|2IBS]], [[2ibt|2IBT]]
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</table>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2np7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2np7 OCA], [http://www.ebi.ac.uk/pdbsum/2np7 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2np7 RCSB]</span>
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== Function ==
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}}
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[https://www.uniprot.org/uniprot/MTTA_THEAQ MTTA_THEAQ] This methylase recognizes the double-stranded sequence TCGA, causes specific methylation on A-4 on both strands and protects the DNA from cleavage by the TaqI endonuclease.
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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/np/2np7_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=2np7 ConSurf].
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<div style="clear:both"></div>
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'''Crystal structure of the adenine-specific DNA methyltransferase M.TaqI complexed with the cofactor analog AETA and a 10 bp DNA containing an abasic site analog at the target position and pyrrolo-dC at the target base partner position'''
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==See Also==
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*[[DNA methyltransferase 3D structures|DNA methyltransferase 3D structures]]
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__TOC__
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==About this Structure==
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</StructureSection>
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2NP7 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NP7 OCA].
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[[Category: Large Structures]]
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[[Category: Single protein]]
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[[Category: Site-specific DNA-methyltransferase (adenine-specific)]]
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[[Category: Thermus aquaticus]]
[[Category: Thermus aquaticus]]
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[[Category: Lenz, T.]]
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[[Category: Lenz T]]
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[[Category: Scheidig, A J.]]
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[[Category: Scheidig AJ]]
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[[Category: Weinhold, E.]]
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[[Category: Weinhold E]]
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[[Category: abasic site analog]]
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[[Category: base flipping]]
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[[Category: dna]]
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[[Category: dna methyltransferase]]
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[[Category: nucleotide flipping]]
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[[Category: pyrrolo-dc]]
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[[Category: target base partner]]
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[[Category: transferase/dna complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 04:06:16 2008''
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Current revision

Crystal structure of the adenine-specific DNA methyltransferase M.TaqI complexed with the cofactor analog AETA and a 10 bp DNA containing an abasic site analog at the target position and pyrrolo-dC at the target base partner position

PDB ID 2np7

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OCA

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