1ezw

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[[Image:1ezw.jpg|left|200px]]
 
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{{Structure
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==STRUCTURE OF COENZYME F420 DEPENDENT TETRAHYDROMETHANOPTERIN REDUCTASE FROM METHANOPYRUS KANDLERI==
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|PDB= 1ezw |SIZE=350|CAPTION= <scene name='initialview01'>1ezw</scene>, resolution 1.65&Aring;
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<StructureSection load='1ezw' size='340' side='right'caption='[[1ezw]], [[Resolution|resolution]] 1.65&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>
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<table><tr><td colspan='2'>[[1ezw]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanopyrus_kandleri Methanopyrus kandleri]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EZW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1EZW FirstGlance]. <br>
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|ACTIVITY=
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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]] 1.65&#8491;</td></tr>
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|GENE=
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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|DOMAIN=
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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=1ezw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ezw OCA], [https://pdbe.org/1ezw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ezw RCSB], [https://www.ebi.ac.uk/pdbsum/1ezw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ezw ProSAT]</span></td></tr>
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|RELATEDENTRY=[[1f07|1F07]]
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</table>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ezw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ezw OCA], [http://www.ebi.ac.uk/pdbsum/1ezw PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1ezw RCSB]</span>
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== Function ==
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}}
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[https://www.uniprot.org/uniprot/MER_METKA MER_METKA] Catalyzes the reversible reduction of methylene-H(4)MPT to methyl-H(4)MPT.[HAMAP-Rule:MF_01091]
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== Evolutionary Conservation ==
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'''STRUCTURE OF COENZYME F420 DEPENDENT TETRAHYDROMETHANOPTERIN REDUCTASE FROM METHANOPYRUS KANDLERI'''
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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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==Overview==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ez/1ezw_consurf.spt"</scriptWhenChecked>
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Coenzyme F(420)-dependent methylenetetrahydromethanopterin reductase (Mer) is an enzyme of the Cl metabolism in methanogenic and sulfate reducing archaea. It is composed of identical 35-40 kDa subunits and lacks a prosthetic group. The crystal structure of Mer from Methanopyrus kandleri (kMer) revealed in one crystal form a dimeric and in another a tetrameric oligomerisation state and that from Methanobacterium thermoautotrophicum (tMer) a dimeric state. Each monomer is primarily composed of a TIM-barrel fold enlarged by three insertion regions. Insertion regions 1 and 2 contribute to intersubunit interactions. Insertion regions 2 and 3 together with the C-terminal end of the TIM-barrel core form a cleft where the binding sites of coenzyme F(420) and methylene-tetrahydromethanopterin are postulated. Close to the coenzyme F(420)-binding site lies a rarely observed non-prolyl cis-peptide bond. It is surprising that Mer is structurally most similar to a bacterial FMN-dependent luciferase which contains a non-prolyl cis-peptide bond at the equivalent position. The structure of Mer is also related to that of NADP-dependent FAD-harbouring methylenetetrahydrofolate reductase (MetF). However, Mer and MetF do not show sequence similarities although they bind related substrates and catalyze an analogous reaction.
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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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==About this Structure==
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</jmolCheckbox>
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1EZW is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Methanopyrus_kandleri Methanopyrus kandleri]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EZW OCA].
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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=1ezw ConSurf].
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<div style="clear:both"></div>
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==Reference==
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__TOC__
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Structure of coenzyme F(420) dependent methylenetetrahydromethanopterin reductase from two methanogenic archaea., Shima S, Warkentin E, Grabarse W, Sordel M, Wicke M, Thauer RK, Ermler U, J Mol Biol. 2000 Jul 21;300(4):935-50. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10891279 10891279]
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Methanopyrus kandleri]]
[[Category: Methanopyrus kandleri]]
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[[Category: Single protein]]
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[[Category: Ermler U]]
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[[Category: Ermler, U.]]
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[[Category: Grabarse W]]
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[[Category: Grabarse, W.]]
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[[Category: Shima S]]
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[[Category: Shima, S.]]
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[[Category: Thauer RK]]
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[[Category: Thauer, R K.]]
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[[Category: Warkentin E]]
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[[Category: Warkentin, E.]]
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[[Category: (beta]]
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[[Category: alpha)8 barrel]]
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[[Category: tim barrel]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:12:59 2008''
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Current revision

STRUCTURE OF COENZYME F420 DEPENDENT TETRAHYDROMETHANOPTERIN REDUCTASE FROM METHANOPYRUS KANDLERI

PDB ID 1ezw

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