3hem

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==Structure of Mycobacterium tuberculosis Mycolic Acid Cyclopropane Synthase CmaA2 in Complex with Dioctylamine==
==Structure of Mycobacterium tuberculosis Mycolic Acid Cyclopropane Synthase CmaA2 in Complex with Dioctylamine==
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<StructureSection load='3hem' size='340' side='right' caption='[[3hem]], [[Resolution|resolution]] 2.39&Aring;' scene=''>
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<StructureSection load='3hem' size='340' side='right'caption='[[3hem]], [[Resolution|resolution]] 2.39&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3hem]] is a 1 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=3HEM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3HEM FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3hem]] 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=3HEM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3HEM FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CO3:CARBONATE+ION'>CO3</scene>, <scene name='pdbligand=D22:N-OCTYLOCTAN-1-AMINE'>D22</scene><br>
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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]] 2.39&#8491;</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">cma2, cmaA2, MT0524, MTCY20G9.30c, Rv0503c ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1773 Mycobacterium tuberculosis])</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=CO3:CARBONATE+ION'>CO3</scene>, <scene name='pdbligand=D22:N-OCTYLOCTAN-1-AMINE'>D22</scene></td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Cyclopropane-fatty-acyl-phospholipid_synthase Cyclopropane-fatty-acyl-phospholipid synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.79 2.1.1.79] </span></td></tr>
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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=3hem FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3hem OCA], [https://pdbe.org/3hem PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3hem RCSB], [https://www.ebi.ac.uk/pdbsum/3hem PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3hem ProSAT]</span></td></tr>
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<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=3hem FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3hem OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3hem RCSB], [http://www.ebi.ac.uk/pdbsum/3hem PDBsum]</span></td></tr>
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</table>
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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>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
<jmolCheckbox>
<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/he/3hem_consurf.spt"</scriptWhenChecked>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/he/3hem_consurf.spt"</scriptWhenChecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<text>to colour the structure by Evolutionary Conservation</text>
<text>to colour the structure by Evolutionary Conservation</text>
</jmolCheckbox>
</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/chain_selection.php?pdb_ID=2ata ConSurf].
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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=3hem ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
==See Also==
==See Also==
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*[[Fatty acid synthase|Fatty acid synthase]]
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*[[Fatty acid synthase 3D structures|Fatty acid synthase 3D structures]]
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== References ==
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<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Cyclopropane-fatty-acyl-phospholipid synthase]]
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[[Category: Large Structures]]
[[Category: Mycobacterium tuberculosis]]
[[Category: Mycobacterium tuberculosis]]
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[[Category: Liu, Z.]]
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[[Category: Liu Z]]
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[[Category: Sacchettini, J C.]]
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[[Category: Sacchettini JC]]
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[[Category: Lipid synthesis]]
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[[Category: Methyltransferase]]
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[[Category: Protein-ligand complex]]
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[[Category: S-adenosyl-l-methionine]]
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[[Category: Transferase]]
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Current revision

Structure of Mycobacterium tuberculosis Mycolic Acid Cyclopropane Synthase CmaA2 in Complex with Dioctylamine

PDB ID 3hem

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