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| | <StructureSection load='1snn' size='340' side='right'caption='[[1snn]], [[Resolution|resolution]] 1.55Å' scene=''> | | <StructureSection load='1snn' size='340' side='right'caption='[[1snn]], [[Resolution|resolution]] 1.55Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1snn]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_43067 Atcc 43067]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SNN OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1SNN FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1snn]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SNN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SNN FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5RP:RIBULOSE-5-PHOSPHATE'>5RP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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]] 1.55Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1pvw|1pvw]], [[1pvy|1pvy]]</div></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5RP:RIBULOSE-5-PHOSPHATE'>5RP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MJ0055 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2190 ATCC 43067])</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=1snn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1snn OCA], [https://pdbe.org/1snn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1snn RCSB], [https://www.ebi.ac.uk/pdbsum/1snn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1snn ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1snn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1snn OCA], [http://pdbe.org/1snn PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1snn RCSB], [http://www.ebi.ac.uk/pdbsum/1snn PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1snn ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/RIBB_METJA RIBB_METJA]] Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate.<ref>PMID:12200440</ref> | + | [https://www.uniprot.org/uniprot/RIBB_METJA RIBB_METJA] Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate.<ref>PMID:12200440</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Atcc 43067]] | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Bacher, A]] | + | [[Category: Methanocaldococcus jannaschii]] |
| - | [[Category: Fischer, M]] | + | [[Category: Bacher A]] |
| - | [[Category: Huber, R]] | + | [[Category: Fischer M]] |
| - | [[Category: Schiffmann, S]] | + | [[Category: Huber R]] |
| - | [[Category: Steinbacher, S]] | + | [[Category: Schiffmann S]] |
| - | [[Category: Isomerase]]
| + | [[Category: Steinbacher S]] |
| - | [[Category: Riboflavin biosynthesis]]
| + | |
| Structural highlights
Function
RIBB_METJA Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate.[1]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The crystal structure of Methanococcus jannaschii 3,4-dihydroxy-2-butanone 4-phosphate synthase in complex with the substrate ribulose 5-phosphate at a dimetal centre has recently been determined at 1.7 A resolution. The enzyme converts ribulose 5-phosphate into 3,4-dihydroxy-2-butanone 4-phosphate, while its C4 atom is released as formate. The resulting four-carbon body supplies all eight C atoms for the xylene moiety of riboflavin. Three of the four hydroxyl groups of ribulose 5-phosphate were coordinated by the metal ions. Based on crystallographic refinement, the metals were assigned as zinc and calcium, which were present in the crystallization buffer. Neither metal supports the enzymatic reaction. In the present study, the correctness of this assignment is assessed using anomalous diffraction data collected at the high-energy side of the zinc absorption edge (lambda = 1.2823 A). Only the three tentative zinc ions give strong peaks in an anomalous difference Fourier map (>20sigma), whereas the four tentative calcium ions do not show anomalous signals above the noise level. These results confirm the initial assignment. In addition, the resolution was improved to 1.55 A.
Metal sites in 3,4-dihydroxy-2-butanone 4-phosphate synthase from Methanococcus jannaschii in complex with the substrate ribulose 5-phosphate.,Steinbacher S, Schiffmann S, Bacher A, Fischer M Acta Crystallogr D Biol Crystallogr. 2004 Jul;60(Pt 7):1338-40. Epub 2004, Jun 22. PMID:15213409[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Fischer M, Romisch W, Schiffmann S, Kelly M, Oschkinat H, Steinbacher S, Huber R, Eisenreich W, Richter G, Bacher A. Biosynthesis of riboflavin in archaea studies on the mechanism of 3,4-dihydroxy-2-butanone-4-phosphate synthase of Methanococcus jannaschii. J Biol Chem. 2002 Nov 1;277(44):41410-6. Epub 2002 Aug 27. PMID:12200440 doi:http://dx.doi.org/10.1074/jbc.M206863200
- ↑ Steinbacher S, Schiffmann S, Bacher A, Fischer M. Metal sites in 3,4-dihydroxy-2-butanone 4-phosphate synthase from Methanococcus jannaschii in complex with the substrate ribulose 5-phosphate. Acta Crystallogr D Biol Crystallogr. 2004 Jul;60(Pt 7):1338-40. Epub 2004, Jun 22. PMID:15213409 doi:10.1107/S0907444904009862
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