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| ==Crystal structure of tm0922, a fusion of a domain of unknown function and ADP/ATP-dependent NAD(P)H-hydrate dehydratase from Thermotoga maritima in complex with ADP-ribose== | | ==Crystal structure of tm0922, a fusion of a domain of unknown function and ADP/ATP-dependent NAD(P)H-hydrate dehydratase from Thermotoga maritima in complex with ADP-ribose== |
| <StructureSection load='3rs8' size='340' side='right' caption='[[3rs8]], [[Resolution|resolution]] 2.10Å' scene=''> | | <StructureSection load='3rs8' size='340' side='right'caption='[[3rs8]], [[Resolution|resolution]] 2.10Å' scene=''> |
| == Structural highlights == | | == Structural highlights == |
| <table><tr><td colspan='2'>[[3rs8]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [http://en.wikipedia.org/wiki/Thema Thema]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3RS8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3RS8 FirstGlance]. <br> | | <table><tr><td colspan='2'>[[3rs8]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [https://en.wikipedia.org/wiki/Thermotoga_maritima_MSB8 Thermotoga maritima MSB8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3RS8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3RS8 FirstGlance]. <br> |
| </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=APR:ADENOSINE-5-DIPHOSPHORIBOSE'>APR</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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]] 2.1Å</td></tr> |
| <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2ax3|2ax3]], [[3rno|3rno]], [[3ro7|3ro7]], [[3roe|3roe]], [[3rog|3rog]], [[3rox|3rox]], [[3roz|3roz]], [[3rrb|3rrb]], [[3rre|3rre]], [[3rrf|3rrf]], [[3rrj|3rrj]], [[3rs9|3rs9]], [[3rsf|3rsf]], [[3rsg|3rsg]], [[3rsq|3rsq]], [[3rss|3rss]], [[3rt7|3rt7]], [[3rt9|3rt9]], [[3rta|3rta]], [[3rtb|3rtb]], [[3rtc|3rtc]], [[3rtd|3rtd]], [[3rte|3rte]], [[3rtg|3rtg]], [[3ru2|3ru2]], [[3ru3|3ru3]]</td></tr>
| | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=APR:ADENOSINE-5-DIPHOSPHORIBOSE'>APR</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> |
| <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">tm0922, TM_0922 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=243274 THEMA])</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=3rs8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3rs8 OCA], [https://pdbe.org/3rs8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3rs8 RCSB], [https://www.ebi.ac.uk/pdbsum/3rs8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3rs8 ProSAT]</span></td></tr> |
| <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/ATP-dependent_NAD(P)H-hydrate_dehydratase ATP-dependent NAD(P)H-hydrate dehydratase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.93 4.2.1.93] </span></td></tr> | |
| <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3rs8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3rs8 OCA], [http://pdbe.org/3rs8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3rs8 RCSB], [http://www.ebi.ac.uk/pdbsum/3rs8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3rs8 ProSAT]</span></td></tr> | |
| </table> | | </table> |
| == Function == | | == Function == |
| [[http://www.uniprot.org/uniprot/NNR_THEMA NNR_THEMA]] Bifunctional enzyme that catalyzes the epimerization of the S- and R-forms of NAD(P)HX and the dehydration of the S-form of NAD(P)HX at the expense of ADP, which is converted to AMP. This allows the repair of both epimers of NAD(P)HX, a damaged form of NAD(P)H that is a result of enzymatic or heat-dependent hydration (By similarity). | | [https://www.uniprot.org/uniprot/NNR_THEMA NNR_THEMA] Bifunctional enzyme that catalyzes the epimerization of the S- and R-forms of NAD(P)HX and the dehydration of the S-form of NAD(P)HX at the expense of ADP, which is converted to AMP. This allows the repair of both epimers of NAD(P)HX, a damaged form of NAD(P)H that is a result of enzymatic or heat-dependent hydration (By similarity). |
| <div style="background-color:#fffaf0;">
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| == Publication Abstract from PubMed ==
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| Proteins of unknown function comprise a significant fraction of sequenced genomes. Defining the roles of these proteins is vital to understanding cellular processes. Here, we describe a method to determine a protein function based on the identification of its natural ligand(s) by the crystallographic screening of the binding of a metabolite library, followed by a focused search in the metabolic space. The method was applied to two protein families with unknown function, PF01256 and YjeF_N. The PF01256 proteins, represented by YxkO from Bacillus subtilis and the C-terminal domain of Tm0922 from Thermotoga maritima, were shown to catalyze ADP/ATP-dependent NAD(P)H-hydrate dehydratation, a previously described orphan activity. The YjeF_N proteins, represented by mouse apolipoprotein A-I binding protein and the N-terminal domain of Tm0922, were found to interact with an adenosine diphosphoribose-related substrate and likely serve as ADP-ribosyltransferases. Crystallographic screening of metabolites serves as an efficient tool in functional analyses of uncharacterized proteins.
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| Identification of Unknown Protein Function Using Metabolite Cocktail Screening.,Shumilin IA, Cymborowski M, Chertihin O, Jha KN, Herr JC, Lesley SA, Joachimiak A, Minor W Structure. 2012 Aug 28. PMID:22940582<ref>PMID:22940582</ref>
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| From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| </div>
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| <div class="pdbe-citations 3rs8" style="background-color:#fffaf0;"></div>
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| == References ==
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| <references/>
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| __TOC__ | | __TOC__ |
| </StructureSection> | | </StructureSection> |
| [[Category: Escherichia coli]] | | [[Category: Escherichia coli]] |
| [[Category: Thema]] | | [[Category: Large Structures]] |
| [[Category: Cymborowski, M]] | | [[Category: Thermotoga maritima MSB8]] |
| [[Category: Lesley, S A]] | | [[Category: Cymborowski M]] |
| [[Category: Minor, W]] | | [[Category: Lesley SA]] |
| [[Category: Shumilin, I A]] | | [[Category: Minor W]] |
| [[Category: Lyase]] | | [[Category: Shumilin IA]] |
| [[Category: Unknown function]]
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