3dcj
From Proteopedia
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| - | [[ | + | ==Crystal structure of glycinamide formyltransferase (PurN) from Mycobacterium tuberculosis in complex with 5-methyl-5,6,7,8-tetrahydrofolic acid derivative== |
| + | <StructureSection load='3dcj' size='340' side='right' caption='[[3dcj]], [[Resolution|resolution]] 2.20Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3dcj]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DCJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3DCJ FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NO3:NITRATE+ION'>NO3</scene>, <scene name='pdbligand=THH:N-[4-({[(6S)-2-AMINO-4-HYDROXY-5-METHYL-5,6,7,8-TETRAHYDROPTERIDIN-6-YL]METHYL}AMINO)BENZOYL]-L-GLUTAMIC+ACID'>THH</scene></td></tr> | ||
| + | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3da8|3da8]]</td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">purN, MT0983, Rv0956 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1773 Mycobacterium tuberculosis])</td></tr> | ||
| + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Phosphoribosylglycinamide_formyltransferase Phosphoribosylglycinamide formyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.2.2 2.1.2.2] </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=3dcj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3dcj OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3dcj RCSB], [http://www.ebi.ac.uk/pdbsum/3dcj 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/dc/3dcj_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 == | ||
| + | Enzymes from the de novo purine biosynthetic pathway have been exploited for the development of anti-cancer drugs, and represent novel targets for anti-bacterial drug development. In Mycobacterium tuberculosis, the cause of tuberculosis, this pathway has been identified as essential for growth and survival. The structure of M. tuberculosis PurN (MtPurN) has been determined in complex with magnesium and iodide at 1.30 A resolution, and with cofactor analogue, 5-methyltetrahydrofolate (5MTHF) at 2.2 A resolution. The structure shows a Rossmann-type fold that is very similar to the known structures of the human and E. coli PurN proteins. In contrast, MtPurN forms a dimer that is quite different from that formed by the Escherichia coli PurN, and which suggests a mechanism whereby communication could take place between the two active sites. Differences are seen in two active site loops and in the binding mode of the 5MTHF cofactor analogue between the two MtPurN molecules of the dimer. A binding site for halide ions is found in the dimer interface, and bound magnesium and iodide ions in the active site suggest sites that might be exploited in potential drug discovery strategies. | ||
| - | + | Structures of glycinamide ribonucleotide transformylase (PurN) from Mycobacterium tuberculosis reveal a novel dimer with relevance to drug discovery.,Zhang Z, Caradoc-Davies TT, Dickson JM, Baker EN, Squire CJ J Mol Biol. 2009 Jun 19;389(4):722-33. Epub 2009 Apr 24. PMID:19394344<ref>PMID:19394344</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | == References == | |
| - | + | <references/> | |
| - | + | __TOC__ | |
| - | + | </StructureSection> | |
| - | + | ||
| - | == | + | |
| - | < | + | |
[[Category: Mycobacterium tuberculosis]] | [[Category: Mycobacterium tuberculosis]] | ||
[[Category: Phosphoribosylglycinamide formyltransferase]] | [[Category: Phosphoribosylglycinamide formyltransferase]] | ||
| - | [[Category: Baker, E N | + | [[Category: Baker, E N]] |
| - | [[Category: Squire, C J | + | [[Category: Squire, C J]] |
| - | [[Category: Zhang, Z | + | [[Category: Zhang, Z]] |
[[Category: Glycinamide formyltransferase]] | [[Category: Glycinamide formyltransferase]] | ||
[[Category: Purn]] | [[Category: Purn]] | ||
[[Category: Transferase]] | [[Category: Transferase]] | ||
Revision as of 07:55, 12 November 2014
Crystal structure of glycinamide formyltransferase (PurN) from Mycobacterium tuberculosis in complex with 5-methyl-5,6,7,8-tetrahydrofolic acid derivative
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