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<StructureSection load='1vfr' size='340' side='right'caption='[[1vfr]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
<StructureSection load='1vfr' size='340' side='right'caption='[[1vfr]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1vfr]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/"achromobacter_fischeri"_(beijerinck_1889)_bergey_et_al._1930 "achromobacter fischeri" (beijerinck 1889) bergey et al. 1930]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VFR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1VFR FirstGlance]. <br>
<table><tr><td colspan='2'>[[1vfr]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Aliivibrio_fischeri Aliivibrio fischeri]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VFR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1VFR FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FMN:FLAVIN+MONONUCLEOTIDE'>FMN</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.8&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FMN:FLAVIN+MONONUCLEOTIDE'>FMN</scene></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=1vfr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vfr OCA], [https://pdbe.org/1vfr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1vfr RCSB], [https://www.ebi.ac.uk/pdbsum/1vfr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1vfr ProSAT]</span></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=1vfr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vfr OCA], [https://pdbe.org/1vfr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1vfr RCSB], [https://www.ebi.ac.uk/pdbsum/1vfr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1vfr ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/FRA1_ALIFS FRA1_ALIFS]] Involved in bioluminescence. It is a good supplier of reduced flavin mononucleotide (FMNH2) to the bioluminescence reaction. Major FMN reductase. It is capable of using both NADH and NADPH as electron donors. As electron acceptor, FMN is the most effective, FAD is considerably effective, and riboflavin is the least effective.  
[https://www.uniprot.org/uniprot/FRA1_ALIFS FRA1_ALIFS] Involved in bioluminescence. It is a good supplier of reduced flavin mononucleotide (FMNH2) to the bioluminescence reaction. Major FMN reductase. It is capable of using both NADH and NADPH as electron donors. As electron acceptor, FMN is the most effective, FAD is considerably effective, and riboflavin is the least effective.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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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=1vfr ConSurf].
</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=1vfr ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
We have solved the crystal structure of FRase I, the major NAD(P)H:FMN oxidoreductase of Vibrio fischeri, by the multiple isomorphous replacement method (MIR) at 1.8 A resolution with the conventional R factor of 0.187. The crystal structure of FRase I complexed with its competitive inhibitor, dicoumarol, has also been solved at 2.2 A resolution with the conventional R factor of 0.161. FRase I is a homodimer, having one FMN cofactor per subunit, which is situated at the interface of two subunits. The overall fold can be divided into two domains; 80% of the residues form a rigid core and the remaining, a small flexible domain. The overall core folding is similar to those of an NADPH-dependent flavin reductase of Vibrio harveyi (FRP) and the NADH oxidase of Thermus thermophilus (NOX) in spite of the very low identity in amino acid sequences (10% with FRP and 21% with NOX). 56% of alpha-carbons of FRase I core residues could be superposed onto NOX counterparts with an r.m.s. distance of 1.2 A. The remaining residues have relatively high B-values and may be essential for defining the substrate specificity. Indeed, one of them, Phe124, was found to participate in the binding of dicoumarol through stacking to one of the rings of dicoumarol. Upon binding of dicoumarol, most of the exposed re-face of the FMN cofactor is buried, which is consistent with the ping pong bi bi catalytic mechanism.
1.8 A crystal structure of the major NAD(P)H:FMN oxidoreductase of a bioluminescent bacterium, Vibrio fischeri: overall structure, cofactor and substrate-analog binding, and comparison with related flavoproteins.,Koike H, Sasaki H, Kobori T, Zenno S, Saigo K, Murphy ME, Adman ET, Tanokura M J Mol Biol. 1998 Jul 10;280(2):259-73. PMID:9654450<ref>PMID:9654450</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1vfr" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Aliivibrio fischeri]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Adman, E T]]
[[Category: Adman ET]]
[[Category: Kobori, T]]
[[Category: Kobori T]]
[[Category: Koike, H]]
[[Category: Koike H]]
[[Category: Murphy, M E.P]]
[[Category: Murphy MEP]]
[[Category: Saigo, K]]
[[Category: Saigo K]]
[[Category: Sasaki, H]]
[[Category: Sasaki H]]
[[Category: Tanokura, M]]
[[Category: Tanokura M]]
[[Category: Zenno, S]]
[[Category: Zenno S]]
[[Category: Bioluminescence]]
[[Category: Fmn]]
[[Category: Oxidoreductase]]
[[Category: Vibrio fischeri]]

Latest revision as of 08:46, 14 February 2024

THE MAJOR NAD(P)H:FMN OXIDOREDUCTASE FROM VIBRIO FISCHERI

1vfr, resolution 1.80Å

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