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| | <StructureSection load='5xz6' size='340' side='right'caption='[[5xz6]], [[Resolution|resolution]] 2.70Å' scene=''> | | <StructureSection load='5xz6' size='340' side='right'caption='[[5xz6]], [[Resolution|resolution]] 2.70Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5xz6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Staphylococcus_aureus_subsp._aureus_st228 Staphylococcus aureus subsp. aureus st228]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5XZ6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5XZ6 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5xz6]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Staphylococcus_aureus_subsp._aureus_NCTC_8325 Staphylococcus aureus subsp. aureus NCTC 8325]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5XZ6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5XZ6 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</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]] 2.7Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">pfkA, SAOUHSC_01807 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1074919 Staphylococcus aureus subsp. aureus ST228])</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/6-phosphofructokinase 6-phosphofructokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.11 2.7.1.11] </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=5xz6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5xz6 OCA], [https://pdbe.org/5xz6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5xz6 RCSB], [https://www.ebi.ac.uk/pdbsum/5xz6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5xz6 ProSAT]</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=5xz6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5xz6 OCA], [http://pdbe.org/5xz6 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5xz6 RCSB], [http://www.ebi.ac.uk/pdbsum/5xz6 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5xz6 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/PFKA_STAA8 PFKA_STAA8]] Catalyzes the phosphorylation of D-fructose 6-phosphate to fructose 1,6-bisphosphate by ATP, the first committing step of glycolysis.[HAMAP-Rule:MF_00339] | + | [https://www.uniprot.org/uniprot/PFKA_STAA8 PFKA_STAA8] Catalyzes the phosphorylation of D-fructose 6-phosphate to fructose 1,6-bisphosphate by ATP, the first committing step of glycolysis.[HAMAP-Rule:MF_00339] |
| - | <div style="background-color:#fffaf0;">
| + | |
| - | == Publication Abstract from PubMed ==
| + | |
| - | Most reported bacterial phosphofructokinases (Pfks) are tetramers that exhibit activity allosterically regulated via conformational changes between the R and T states. We report that the Pfk from Staphylococcus aureus NCTC 8325 ( SaPfk) exists as both an active tetramer and an inactive dimer in solution. Multiple effectors, including pH, ADP, ATP, and adenylyl-imidodiphosphate (AMP-PNP), cause equilibrium shifts from the tetramer to dimer, whereas the substrate F6P stabilizes SaPfk tetrameric assembly. Crystal structures of SaPfk in complex with different ligands and biochemical analysis reveal that the flexibility of the Gly150-Leu151 motif in helix alpha7 plays a role in tetramer-dimer conversion. Thus, we propose a molecular mechanism for allosteric regulation of bacterial Pfk via conversion between the tetramer and dimer in addition to the well-characterized R-state/T-state mechanism.
| + | |
| | | | |
| - | Structural Insights into the Regulation of Staphylococcus aureus Phosphofructokinase by Tetramer-Dimer Conversion.,Tian T, Wang C, Wu M, Zhang X, Zang J Biochemistry. 2018 Jul 24;57(29):4252-4262. doi: 10.1021/acs.biochem.8b00028., Epub 2018 Jul 9. PMID:29940104<ref>PMID:29940104</ref>
| + | ==See Also== |
| - | | + | *[[Phosphofructokinase 3D structures|Phosphofructokinase 3D structures]] |
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
| + | |
| - | </div>
| + | |
| - | <div class="pdbe-citations 5xz6" style="background-color:#fffaf0;"></div>
| + | |
| - | == References ==
| + | |
| - | <references/>
| + | |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: 6-phosphofructokinase]] | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Staphylococcus aureus subsp. aureus st228]] | + | [[Category: Staphylococcus aureus subsp. aureus NCTC 8325]] |
| - | [[Category: Tian, T]] | + | [[Category: Tian T]] |
| - | [[Category: Wang, C L]] | + | [[Category: Wang CL]] |
| - | [[Category: Zang, J Y]] | + | [[Category: Zang JY]] |
| - | [[Category: Phosphofructokinase]]
| + | |
| - | [[Category: Staphylococcus aureus]]
| + | |
| - | [[Category: Transferase]]
| + | |
