1f38

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[[Image:1f38.png|left|200px]]
 
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{{STRUCTURE_1f38| PDB=1f38 | SCENE= }}
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==X-RAY CRYSTALLOGRAPHIC STRUCTURE OF PRECORRIN 8W DECARBOXYLASE, THE PRODUCT OF GENE MT0146 IN THE METHANOBACTERIUM THERMOAUTOTROPHICUM GENOME==
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<StructureSection load='1f38' size='340' side='right'caption='[[1f38]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1f38]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanothermobacter_thermautotrophicus Methanothermobacter thermautotrophicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F38 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1F38 FirstGlance]. <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]] 2.4&#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=MSE:SELENOMETHIONINE'>MSE</scene></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=1f38 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f38 OCA], [https://pdbe.org/1f38 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1f38 RCSB], [https://www.ebi.ac.uk/pdbsum/1f38 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1f38 ProSAT], [https://www.topsan.org/Proteins/NESGC/1f38 TOPSAN]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CBIT_METTH CBIT_METTH] Catalyzes the methylation of C-15 in cobalt-precorrin-6B followed by the decarboxylation of C-12 to form cobalt-precorrin-7 (Probable).<ref>PMID:12429089</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/f3/1f38_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1f38 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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The CbiT and CbiE enzymes participate in the biosynthesis of vitamin B12. They are fused together in some organisms to form a protein called CobL, which catalyzes two methylations and one decarboxylation on a precorrin intermediate. Because CbiE has sequence homology to canonical precorrin methyltransferases, CbiT was hypothesized to catalyze the decarboxylation. We herein present the crystal structure of MT0146, the CbiT homolog from Methanobacterium thermoautotrophicum. The protein shows structural similarity to Rossmann-like S-adenosyl-methionine-dependent methyltransferases, and our 1.9 A cocrystal structure shows that it binds S-adenosyl-methionine in standard geometry near a binding pocket that could accommodate a precorrin substrate. Therefore, MT0146/CbiT probably functions as a precorrin methyltransferase and represents the first enzyme identified with this activity that does not have the canonical precorrin methyltransferase fold.
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===X-RAY CRYSTALLOGRAPHIC STRUCTURE OF PRECORRIN 8W DECARBOXYLASE, THE PRODUCT OF GENE MT0146 IN THE METHANOBACTERIUM THERMOAUTOTROPHICUM GENOME===
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The crystal structure of MT0146/CbiT suggests that the putative precorrin-8w decarboxylase is a methyltransferase.,Keller JP, Smith PM, Benach J, Christendat D, deTitta GT, Hunt JF Structure. 2002 Nov;10(11):1475-87. PMID:12429089<ref>PMID:12429089</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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==About this Structure==
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</div>
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[[1f38]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Methanothermobacter_thermautotrophicus Methanothermobacter thermautotrophicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F38 OCA].
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<div class="pdbe-citations 1f38" style="background-color:#fffaf0;"></div>
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:012429089</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Methanothermobacter thermautotrophicus]]
[[Category: Methanothermobacter thermautotrophicus]]
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[[Category: Hunt, J F.]]
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[[Category: Hunt JF]]
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[[Category: Keller, J P.]]
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[[Category: Keller JP]]
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[[Category: NESG, Northeast Structural Genomics Consortium.]]
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[[Category: Smith PM]]
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[[Category: Smith, P M.]]
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[[Category: Decarboxylase]]
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[[Category: Lyase]]
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[[Category: Nesg]]
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[[Category: Northeast structural genomics consortium]]
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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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Current revision

X-RAY CRYSTALLOGRAPHIC STRUCTURE OF PRECORRIN 8W DECARBOXYLASE, THE PRODUCT OF GENE MT0146 IN THE METHANOBACTERIUM THERMOAUTOTROPHICUM GENOME

PDB ID 1f38

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