1kpi

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[[Image:1kpi.png|left|200px]]
 
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==Crystal Structure of mycolic acid cyclopropane synthase CmaA2 complexed with SAH and DDDMAB==
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The line below this paragraph, containing "STRUCTURE_1kpi", creates the "Structure Box" on the page.
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<StructureSection load='1kpi' size='340' side='right'caption='[[1kpi]], [[Resolution|resolution]] 2.65&Aring;' scene=''>
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1kpi]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KPI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KPI FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 2.65&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=10A:DIDECYL-DIMETHYL-AMMONIUM'>10A</scene>, <scene name='pdbligand=CO3:CARBONATE+ION'>CO3</scene>, <scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_1kpi| PDB=1kpi | SCENE= }}
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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=1kpi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kpi OCA], [https://pdbe.org/1kpi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1kpi RCSB], [https://www.ebi.ac.uk/pdbsum/1kpi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1kpi ProSAT], [https://www.topsan.org/Proteins/TBSGC/1kpi TOPSAN]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CMAS2_MYCTU CMAS2_MYCTU] Catalyzes the formation of trans cyclopropanated ketomycolate or methoxymycolate through the conversion of a double bond to a cyclopropane ring at the proximal position of an oxygenated mycolic acid via the transfer of a methylene group from S-adenosyl-L-methionine. In the absence of MmaA2, CmaA2 has a non-specific cis-cyclopropanating activity and is able to catalyze the conversion of a double bond to a cis cyclopropane ring at the distal position of an alpha mycolic acid. Cyclopropanated mycolic acids are key factors participating in cell envelope permeability, host immunomodulation and persistence.<ref>PMID:11092877</ref> <ref>PMID:7592990</ref>
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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/kp/1kpi_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=1kpi ConSurf].
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<div style="clear:both"></div>
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===Crystal Structure of mycolic acid cyclopropane synthase CmaA2 complexed with SAH and DDDMAB===
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==See Also==
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*[[Fatty acid synthase 3D structures|Fatty acid synthase 3D structures]]
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== References ==
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 11756461 is the PubMed ID number.
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</StructureSection>
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[[Category: Large Structures]]
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{{ABSTRACT_PUBMED_11756461}}
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==About this Structure==
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1KPI is a [[Single protein]] structure of 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=1KPI OCA].
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==Reference==
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Crystal structures of mycolic acid cyclopropane synthases from Mycobacterium tuberculosis., Huang CC, Smith CV, Glickman MS, Jacobs WR Jr, Sacchettini JC, J Biol Chem. 2002 Mar 29;277(13):11559-69. Epub 2001 Dec 26. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11756461 11756461]
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[[Category: Cyclopropane-fatty-acyl-phospholipid synthase]]
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[[Category: Mycobacterium tuberculosis]]
[[Category: Mycobacterium tuberculosis]]
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[[Category: Single protein]]
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[[Category: Glickman MS]]
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[[Category: Glickman, M S.]]
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[[Category: Huang C-C]]
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[[Category: Huang, C C.]]
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[[Category: Jacobs Jr WR]]
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[[Category: Jr., W R.Jacobs.]]
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[[Category: Sacchettini JC]]
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[[Category: Sacchettini, J C.]]
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[[Category: Smith CV]]
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[[Category: Smith, C V.]]
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[[Category: TBSGC, TB Structural Genomics Consortium.]]
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[[Category: Mixed alpha beta fold]]
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[[Category: Protein structure initiative]]
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[[Category: Psi]]
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[[Category: Structural genomic]]
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[[Category: Tb structural genomics consortium]]
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[[Category: Tbsgc]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 10:42:58 2008''
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Current revision

Crystal Structure of mycolic acid cyclopropane synthase CmaA2 complexed with SAH and DDDMAB

PDB ID 1kpi

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