View source for 3cgw


==Crystal structure of 2-phospho-(S)-lactate transferase from Methanosarcina mazei. Northeast Structural Genomics Consortium target MaR46==
<StructureSection load='3cgw' size='340' side='right'caption='[[3cgw]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3cgw]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Metma Metma]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=2ffe 2ffe]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CGW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3CGW FirstGlance]. <br>
</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3c3d|3c3d]], [[3c3e|3c3e]]</div></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">cofD, MM_1874 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=192952 METMA])</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3cgw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cgw OCA], [https://pdbe.org/3cgw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3cgw RCSB], [https://www.ebi.ac.uk/pdbsum/3cgw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3cgw ProSAT], [https://www.topsan.org/Proteins/NESGC/3cgw TOPSAN]</span></td></tr>
</table>
== Function ==
[[https://www.uniprot.org/uniprot/COFD_METMA COFD_METMA]] Catalyzes the transfer of the 2-phospholactate moiety from lactyl (2) diphospho-(5')guanosine (LPPG) to 7,8-didemethyl-8-hydroxy-5-deazariboflavin (FO) with the formation of the L-lactyl phosphodiester of 7,8-didemethyl-8-hydroxy-5-deazariboflavin (F420-0) and GMP (By similarity). 
== 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/cg/3cgw_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/main_output.php?pdb_ID=3cgw ConSurf].
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== Publication Abstract from PubMed ==
Coenzyme F(420), a hydride carrier, is found in Archaea and some bacteria and has crucial roles in methanogenesis, antibiotic biosynthesis, DNA repair, and activation of antitubercular compounds. CofD, 2-phospho-l-lactate transferase, catalyzes the last step in the biosynthesis of F(420)-0 (F(420) without polyglutamate), by transferring the lactyl phosphate moiety of lactyl(2)diphospho-(5')guanosine to 7,8-didemethyl-8-hydroxy-5-deazariboflavin ribitol (Fo). CofD is highly conserved among F(420)-producing organisms, and weak sequence homologs are also found in non-F(420)-producing organisms. This superfamily does not share any recognizable sequence conservation with other proteins. Here we report the first crystal structures of CofD, the free enzyme and two ternary complexes, with Fo and P(i) or with Fo and GDP, from Methanosarcina mazei. The active site is located at the C-terminal end of a Rossmann fold core, and three large insertions make significant contributions to the active site and dimer formation. The observed binding modes of Fo and GDP can explain known biochemical properties of CofD and are also supported by our binding assays. The structures provide significant molecular insights into the biosynthesis of the F(420) coenzyme. Large structural differences in the active site region of the non-F(420)-producing CofD homologs suggest that they catalyze a different biochemical reaction.

Molecular insights into the biosynthesis of the F420 coenzyme.,Forouhar F, Abashidze M, Xu H, Grochowski LL, Seetharaman J, Hussain M, Kuzin A, Chen Y, Zhou W, Xiao R, Acton TB, Montelione GT, Galinier A, White RH, Tong L J Biol Chem. 2008 Apr 25;283(17):11832-40. Epub 2008 Feb 5. PMID:18252724<ref>PMID:18252724</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Metma]]
[[Category: Abashidze, M]]
[[Category: Acton, T B]]
[[Category: Ciao, M]]
[[Category: Forouhar, F]]
[[Category: Hunt, J F]]
[[Category: Janjua, H]]
[[Category: Montelione, G T]]
[[Category: Structural genomic]]
[[Category: Seetharaman, J]]
[[Category: Tong, L]]
[[Category: Vorobiev, S M]]
[[Category: Xiao, R]]
[[Category: Alpha-beta protein]]
[[Category: Magnesium]]
[[Category: Nesg]]
[[Category: PSI, Protein structure initiative]]
[[Category: Transferase]]