|
|
| Line 3: |
Line 3: |
| | <StructureSection load='3flk' size='340' side='right'caption='[[3flk]], [[Resolution|resolution]] 2.00Å' scene=''> | | <StructureSection load='3flk' size='340' side='right'caption='[[3flk]], [[Resolution|resolution]] 2.00Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3flk]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_fluorescens_putidus"_flugge_1886 "bacillus fluorescens putidus" flugge 1886]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FLK OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=3FLK FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3flk]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/"bacillus_fluorescens_putidus"_flugge_1886 "bacillus fluorescens putidus" flugge 1886]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FLK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FLK FirstGlance]. <br> |
| | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DTT:2,3-DIHYDROXY-1,4-DITHIOBUTANE'>DTT</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAI:1,4-DIHYDRONICOTINAMIDE+ADENINE+DINUCLEOTIDE'>NAI</scene>, <scene name='pdbligand=NH4:AMMONIUM+ION'>NH4</scene>, <scene name='pdbligand=OXL:OXALATE+ION'>OXL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DTT:2,3-DIHYDROXY-1,4-DITHIOBUTANE'>DTT</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAI:1,4-DIHYDRONICOTINAMIDE+ADENINE+DINUCLEOTIDE'>NAI</scene>, <scene name='pdbligand=NH4:AMMONIUM+ION'>NH4</scene>, <scene name='pdbligand=OXL:OXALATE+ION'>OXL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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='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='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Tartrate_dehydrogenase Tartrate dehydrogenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.93 1.1.1.93] </span></td></tr> | + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Tartrate_dehydrogenase Tartrate dehydrogenase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.93 1.1.1.93] </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=3flk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3flk OCA], [http://pdbe.org/3flk PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3flk RCSB], [http://www.ebi.ac.uk/pdbsum/3flk PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3flk 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=3flk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3flk OCA], [https://pdbe.org/3flk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3flk RCSB], [https://www.ebi.ac.uk/pdbsum/3flk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3flk ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/TTUC_PSEPU TTUC_PSEPU]] Has multiple catalytic activities. Apart from catalyzing the oxidation of (+)-tartrate to oxaloglycolate, also converts meso-tartrate to D-glycerate and catalyzes the oxidative decarboxylation of D-malate to pyruvate. | + | [[https://www.uniprot.org/uniprot/TTUC_PSEPU TTUC_PSEPU]] Has multiple catalytic activities. Apart from catalyzing the oxidation of (+)-tartrate to oxaloglycolate, also converts meso-tartrate to D-glycerate and catalyzes the oxidative decarboxylation of D-malate to pyruvate. |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
| Structural highlights
3flk is a 4 chain structure with sequence from "bacillus_fluorescens_putidus"_flugge_1886 "bacillus fluorescens putidus" flugge 1886. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Ligands: | , , , , , |
| NonStd Res: | |
| Activity: | Tartrate dehydrogenase, with EC number 1.1.1.93 |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
[TTUC_PSEPU] Has multiple catalytic activities. Apart from catalyzing the oxidation of (+)-tartrate to oxaloglycolate, also converts meso-tartrate to D-glycerate and catalyzes the oxidative decarboxylation of D-malate to pyruvate.
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 first structure of an NAD-dependent tartrate dehydrogenase (TDH) has been solved to 2 A resolution by single anomalous diffraction (SAD) phasing as a complex with the intermediate analog oxalate, Mg(2+) and NADH. This TDH structure from Pseudomonas putida has a similar overall fold and domain organization to other structurally characterized members of the hydroxy-acid dehydrogenase family. However, there are considerable differences between TDH and these functionally related enzymes in the regions connecting the core secondary structure and in the relative positioning of important loops and helices. The active site in these complexes is highly ordered, allowing the identification of the substrate-binding and cofactor-binding groups and the ligands to the metal ions. Residues from the adjacent subunit are involved in both the substrate and divalent metal ion binding sites, establishing a dimer as the functional unit and providing structural support for an alternating-site reaction mechanism. The divalent metal ion plays a prominent role in substrate binding and orientation, together with several active-site arginines. Functional groups from both subunits form the cofactor-binding site and the ammonium ion aids in the orientation of the nicotinamide ring of the cofactor. A lysyl amino group (Lys192) is the base responsible for the water-mediated proton abstraction from the C2 hydroxyl group of the substrate that begins the catalytic reaction, followed by hydride transfer to NAD. A tyrosyl hydroxyl group (Tyr141) functions as a general acid to protonate the enolate intermediate. Each substrate undergoes the initial hydride transfer, but differences in substrate orientation are proposed to account for the different reactions catalyzed by TDH.
Structural characterization of tartrate dehydrogenase: a versatile enzyme catalyzing multiple reactions.,Malik R, Viola RE Acta Crystallogr D Biol Crystallogr. 2010 Jun;66(Pt 6):673-84. Epub 2010, May 15. PMID:20516620[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Malik R, Viola RE. Structural characterization of tartrate dehydrogenase: a versatile enzyme catalyzing multiple reactions. Acta Crystallogr D Biol Crystallogr. 2010 Jun;66(Pt 6):673-84. Epub 2010, May 15. PMID:20516620 doi:10.1107/S0907444910008851
|
