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2fto

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[[Image:2fto.gif|left|200px]]
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==Y94F mutant of thymidylate synthase bound to thymidine-5'-phosphate and 10-propargyl-5,8-dideazafolid acid==
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<StructureSection load='2fto' size='340' side='right' caption='[[2fto]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2fto]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FTO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2FTO FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CB3:10-PROPARGYL-5,8-DIDEAZAFOLIC+ACID'>CB3</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=TMP:THYMIDINE-5-PHOSPHATE'>TMP</scene></td></tr>
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<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CXM:N-CARBOXYMETHIONINE'>CXM</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2ftn|2ftn]], [[2ftq|2ftq]]</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">thyA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 "Bacillus coli" Migula 1895])</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Thymidylate_synthase Thymidylate synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.45 2.1.1.45] </span></td></tr>
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<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=2fto FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2fto OCA], [http://pdbe.org/2fto PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2fto RCSB], [http://www.ebi.ac.uk/pdbsum/2fto PDBsum]</span></td></tr>
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</table>
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== Function ==
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[[http://www.uniprot.org/uniprot/TYSY_ECOLI TYSY_ECOLI]] Provides the sole de novo source of dTMP for DNA biosynthesis. This protein also binds to its mRNA thus repressing its own translation.
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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/ft/2fto_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=2fto 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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Tyr94 of Escherichia coli thymidylate synthase is thought to be involved, either directly or by activation of a water molecule, in the abstraction of a proton from C5 of the 2'-deoxyuridine 5'-monophosphate (dUMP) substrate. Mutation of Tyr94 leads to a 400-fold loss in catalytic activity. The structure of the Y94F mutant has been determined in the native state and as a ternary complex with thymidine 5'-monophosphate (dTMP) and 10-propargyl 5,8-dideazafolate (PDDF). There are no structural changes ascribable to the mutation other than loss of a water molecule hydrogen bonded to the tyrosine OH, which is consistent with a catalytic role for the phenolic OH.
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{{Structure
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Structure of the Y94F mutant of Escherichia coli thymidylate synthase.,Roberts SA, Hyatt DC, Honts JE, Changchien L, Maley GF, Maley F, Montfort WR Acta Crystallogr Sect F Struct Biol Cryst Commun. 2006 Sep 1;62(Pt, 9):840-3. Epub 2006 Aug 18. PMID:16946460<ref>PMID:16946460</ref>
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|PDB= 2fto |SIZE=350|CAPTION= <scene name='initialview01'>2fto</scene>, resolution 2.00&Aring;
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|SITE=
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|LIGAND= <scene name='pdbligand=CB3:10-PROPARGYL-5,8-DIDEAZAFOLIC+ACID'>CB3</scene>, <scene name='pdbligand=CXM:N-CARBOXYMETHIONINE'>CXM</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=TMP:THYMIDINE-5&#39;-PHOSPHATE'>TMP</scene>
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Thymidylate_synthase Thymidylate synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.45 2.1.1.45] </span>
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|GENE= thyA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])
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|DOMAIN=
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|RELATEDENTRY=[[2ftn|2FTN]], [[2ftq|2FTQ]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2fto FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2fto OCA], [http://www.ebi.ac.uk/pdbsum/2fto PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2fto RCSB]</span>
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}}
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'''Y94F mutant of thymidylate synthase bound to thymidine-5'-phosphate and 10-propargyl-5,8-dideazafolid acid'''
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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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<div class="pdbe-citations 2fto" style="background-color:#fffaf0;"></div>
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==See Also==
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==Overview==
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*[[Thymidylate synthase|Thymidylate synthase]]
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Tyr94 of Escherichia coli thymidylate synthase is thought to be involved, either directly or by activation of a water molecule, in the abstraction of a proton from C5 of the 2'-deoxyuridine 5'-monophosphate (dUMP) substrate. Mutation of Tyr94 leads to a 400-fold loss in catalytic activity. The structure of the Y94F mutant has been determined in the native state and as a ternary complex with thymidine 5'-monophosphate (dTMP) and 10-propargyl 5,8-dideazafolate (PDDF). There are no structural changes ascribable to the mutation other than loss of a water molecule hydrogen bonded to the tyrosine OH, which is consistent with a catalytic role for the phenolic OH.
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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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2FTO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FTO OCA].
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</StructureSection>
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[[Category: Bacillus coli migula 1895]]
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==Reference==
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Structure of the Y94F mutant of Escherichia coli thymidylate synthase., Roberts SA, Hyatt DC, Honts JE, Changchien L, Maley GF, Maley F, Montfort WR, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2006 Sep 1;62(Pt, 9):840-3. Epub 2006 Aug 18. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16946460 16946460]
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[[Category: Escherichia coli]]
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[[Category: Single protein]]
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[[Category: Thymidylate synthase]]
[[Category: Thymidylate synthase]]
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[[Category: Montfort, W R.]]
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[[Category: Montfort, W R]]
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[[Category: Roberts, S A.]]
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[[Category: Roberts, S A]]
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[[Category: methyltransferase]]
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[[Category: Methyltransferase]]
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[[Category: Transferase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:07:31 2008''
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Current revision

Y94F mutant of thymidylate synthase bound to thymidine-5'-phosphate and 10-propargyl-5,8-dideazafolid acid

2fto, resolution 2.00Å

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