1mo8
From Proteopedia
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| - | [[Image:1mo8.gif|left|200px]] | + | [[Image:1mo8.gif|left|200px]] |
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| - | '''ATPase''' | + | {{Structure |
| + | |PDB= 1mo8 |SIZE=350|CAPTION= <scene name='initialview01'>1mo8</scene> | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=ATP:ADENOSINE-5'-TRIPHOSPHATE'>ATP</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Sodium/potassium-exchanging_ATPase Sodium/potassium-exchanging ATPase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.3.9 3.6.3.9] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''ATPase''' | ||
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==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1MO8 is a [ | + | 1MO8 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MO8 OCA]. |
==Reference== | ==Reference== | ||
| - | ATP-induced conformational changes of the nucleotide-binding domain of Na,K-ATPase., Hilge M, Siegal G, Vuister GW, Guntert P, Gloor SM, Abrahams JP, Nat Struct Biol. 2003 Jun;10(6):468-74. PMID:[http:// | + | ATP-induced conformational changes of the nucleotide-binding domain of Na,K-ATPase., Hilge M, Siegal G, Vuister GW, Guntert P, Gloor SM, Abrahams JP, Nat Struct Biol. 2003 Jun;10(6):468-74. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12730684 12730684] |
[[Category: Rattus norvegicus]] | [[Category: Rattus norvegicus]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: twisted beta sheet]] | [[Category: twisted beta sheet]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:45:58 2008'' |
Revision as of 10:45, 20 March 2008
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| Ligands: | |||||||
| Activity: | Sodium/potassium-exchanging ATPase, with EC number 3.6.3.9 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
ATPase
Overview
The Na,K-ATPase hydrolyzes ATP to drive the coupled extrusion and uptake of Na+ and K+ ions across the plasma membrane. Here, we report two high-resolution NMR structures of the 213-residue nucleotide-binding domain of rat alpha1 Na,K-ATPase, determined in the absence and the presence of ATP. The nucleotide binds in the anti conformation and shows a relative paucity of interactions with the protein, reflecting the low-affinity ATP-binding state. Binding of ATP induces substantial conformational changes in the binding pocket and in residues located in the hinge region connecting the N- and P-domains. Structural comparison with the Ca-ATPase stabilized by the inhibitor thapsigargin, E2(TG), and the model of the H-ATPase in the E1 form suggests that the observed changes may trigger the series of events necessary for the release of the K+ ions and/or disengagement of the A-domain, leading to the eventual transfer of the gamma-phosphate group to the invariant Asp369.
About this Structure
1MO8 is a Single protein structure of sequence from Rattus norvegicus. Full crystallographic information is available from OCA.
Reference
ATP-induced conformational changes of the nucleotide-binding domain of Na,K-ATPase., Hilge M, Siegal G, Vuister GW, Guntert P, Gloor SM, Abrahams JP, Nat Struct Biol. 2003 Jun;10(6):468-74. PMID:12730684
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