1svj
From Proteopedia
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==The solution structure of the nucleotide binding domain of KdpB== | ==The solution structure of the nucleotide binding domain of KdpB== | ||
| - | <StructureSection load='1svj' size='340' side='right'caption='[[1svj | + | <StructureSection load='1svj' size='340' side='right'caption='[[1svj]]' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1svj]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/ | + | <table><tr><td colspan='2'>[[1svj]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SVJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SVJ FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> |
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1svj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1svj OCA], [https://pdbe.org/1svj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1svj RCSB], [https://www.ebi.ac.uk/pdbsum/1svj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1svj 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=1svj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1svj OCA], [https://pdbe.org/1svj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1svj RCSB], [https://www.ebi.ac.uk/pdbsum/1svj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1svj ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
| - | + | [https://www.uniprot.org/uniprot/KDPB_ECOLI KDPB_ECOLI] Part of the high-affinity ATP-driven potassium transport (or Kdp) system, which catalyzes the hydrolysis of ATP coupled with the electrogenic transport of potassium into the cytoplasm (PubMed:2849541, PubMed:8499455, PubMed:23930894). This subunit is responsible for energy coupling to the transport system (PubMed:16354672).<ref>PMID:16354672</ref> <ref>PMID:23930894</ref> <ref>PMID:2849541</ref> <ref>PMID:8499455</ref> | |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1svj ConSurf]. | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1svj ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | P-type ATPases are involved in the active transport of ions across biological membranes. The KdpFABC complex (P-type ATPase) of Escherichia coli is a high-affinity K+ uptake system that operates only when the cell experiences osmotic stress or K+ limitation. Here, we present the solution structure of the nucleotide binding domain of KdpB (backbone RMSD 0.17 A) and a model of the AMP-PNP binding mode based on intermolecular distance restraints. The calculated AMP-PNP binding mode shows the purine ring of the nucleotide to be "clipped" into the binding pocket via a pi-pi-interaction to F377 on one side and a cation-pi-interaction to K395 on the other. This binding mechanism seems to be conserved in all P-type ATPases, except the heavy metal transporting ATPases (type IB). Thus, we conclude that the Kdp-ATPase (currently type IA) is misgrouped and has more similarities to type III ATPases. The KdpB N-domain is the smallest and simplest known for a P-type ATPase, and represents a minimal example of this functional unit. No evidence of significant conformational changes was observed within the N-domain upon nucleotide binding, thus ruling out a role for ATP-induced conformational changes in the reaction cycle. | ||
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| - | Inter-domain motions of the N-domain of the KdpFABC complex, a P-type ATPase, are not driven by ATP-induced conformational changes.,Haupt M, Bramkamp M, Coles M, Altendorf K, Kessler H J Mol Biol. 2004 Oct 1;342(5):1547-58. PMID:15364580<ref>PMID:15364580</ref> | ||
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 1svj" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Escherichia coli]] |
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
| - | + | [[Category: Altendorf K]] | |
| - | [[Category: Altendorf | + | [[Category: Bramkamp M]] |
| - | [[Category: Bramkamp | + | [[Category: Coles M]] |
| - | [[Category: Coles | + | [[Category: Haupt M]] |
| - | [[Category: Haupt | + | [[Category: Kessler H]] |
| - | [[Category: Kessler | + | |
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Revision as of 08:35, 1 May 2024
The solution structure of the nucleotide binding domain of KdpB
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