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| | <StructureSection load='1k3d' size='340' side='right'caption='[[1k3d]], [[Resolution|resolution]] 2.00Å' scene=''> | | <StructureSection load='1k3d' size='340' side='right'caption='[[1k3d]], [[Resolution|resolution]] 2.00Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1k3d]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1K3D OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1K3D FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1k3d]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1K3D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1K3D FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=AF3:ALUMINUM+FLUORIDE'>AF3</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]] 2Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1aq2|1aq2]], [[1ayl|1ayl]], [[1k3c|1k3c]]</div></td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=AF3:ALUMINUM+FLUORIDE'>AF3</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">PCKA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 "Bacillus coli" Migula 1895])</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=1k3d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1k3d OCA], [https://pdbe.org/1k3d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1k3d RCSB], [https://www.ebi.ac.uk/pdbsum/1k3d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1k3d 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/Phosphoenolpyruvate_carboxykinase_(ATP) Phosphoenolpyruvate carboxykinase (ATP)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.1.1.49 4.1.1.49] </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=1k3d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1k3d OCA], [http://pdbe.org/1k3d PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1k3d RCSB], [http://www.ebi.ac.uk/pdbsum/1k3d PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1k3d ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/PCKA_ECOLI PCKA_ECOLI] |
| | == 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: Bacillus coli migula 1895]] | + | [[Category: Escherichia coli]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Delbaere, L T.J]] | + | [[Category: Delbaere LTJ]] |
| - | [[Category: Goldie, H]] | + | [[Category: Goldie H]] |
| - | [[Category: Prasad, L]] | + | [[Category: Prasad L]] |
| - | [[Category: Sudom, A M]] | + | [[Category: Sudom AM]] |
| - | [[Category: Gluconeogenesis]]
| + | |
| - | [[Category: Kinase]]
| + | |
| - | [[Category: Lyase]]
| + | |
| - | [[Category: Nucleotide-triphosphate hydrolase]]
| + | |
| Structural highlights
Function
PCKA_ECOLI
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 mechanism of reversible transfer of the gamma-phosphate group of ATP by Escherichia coli phosphoenolpyruvate carboxykinase (PCK) on to its substrate is of great interest. It is known that metallofluorides are accurate analogs of the transition state in the context of kinase mechanisms. Therefore, two complexes of PCK, one with AlF(3), Mg(2+) and ADP (complex I), the other with AlF(3), Mg(2+), ADP and pyruvate (complex II) were crystallized. The X-ray crystal structures of these two complexes were determined at 2.0 A resolution. The Al atom has trigonal bipyramidal geometry that mimics the transition state of phosphoryl transfer. The Al atom is at a distance of 2.8 A and 2.9 A from an oxygen atom of the beta-phosphoryl group of ADP in complex I and II, respectively. A water molecule in complex I and an oxygen atom of the pyruvate in complex II are located along the axis of the trigonal bipyramid on the side opposite to the beta-phosphoryl oxygen with respect to the equatorial plane, suggesting that the complexes are close mimics of the transition state. Along with the presence of positively charged species around the AlF(3) moiety, these results indicate that phosphoryl transfer occurs via a direct displacement mechanism with associative qualities.
The phosphoryl-transfer mechanism of Escherichia coli phosphoenolpyruvate carboxykinase from the use of AlF(3).,Sudom AM, Prasad L, Goldie H, Delbaere LT J Mol Biol. 2001 Nov 16;314(1):83-92. PMID:11724534[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Sudom AM, Prasad L, Goldie H, Delbaere LT. The phosphoryl-transfer mechanism of Escherichia coli phosphoenolpyruvate carboxykinase from the use of AlF(3). J Mol Biol. 2001 Nov 16;314(1):83-92. PMID:11724534 doi:10.1006/jmbi.2001.5120
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