2zbd

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{{STRUCTURE_2zbd| PDB=2zbd | SCENE= }}
{{STRUCTURE_2zbd| PDB=2zbd | SCENE= }}
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'''Crystal Structure of the SR Calcium Pump with Bound Aluminium Fluoride, ADP and Calcium'''
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===Crystal Structure of the SR Calcium Pump with Bound Aluminium Fluoride, ADP and Calcium===
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==Overview==
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P-type ion transporting ATPases are ATP-powered ion pumps that establish ion concentration gradients across biological membranes. Transfer of bound cations to the lumenal or extracellular side occurs while the ATPase is phosphorylated. Here we report at 2.3 A resolution the structure of the calcium-ATPase of skeletal muscle sarcoplasmic reticulum, a representative P-type ATPase that is crystallized in the absence of Ca2+ but in the presence of magnesium fluoride, a stable phosphate analogue. This and other crystal structures determined previously provide atomic models for all four principal states in the reaction cycle. These structures show that the three cytoplasmic domains rearrange to move six out of ten transmembrane helices, thereby changing the affinity of the Ca2+-binding sites and the gating of the ion pathway. Release of ADP triggers the opening of the lumenal gate and release of phosphate its closure, effected mainly through movement of the A-domain, the actuator of transmembrane gates.
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The line below this paragraph, {{ABSTRACT_PUBMED_15448704}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 15448704 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15448704}}
==About this Structure==
==About this Structure==
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==Reference==
==Reference==
Lumenal gating mechanism revealed in calcium pump crystal structures with phosphate analogues., Toyoshima C, Nomura H, Tsuda T, Nature. 2004 Nov 18;432(7015):361-8. Epub 2004 Sep 26. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15448704 15448704]
Lumenal gating mechanism revealed in calcium pump crystal structures with phosphate analogues., Toyoshima C, Nomura H, Tsuda T, Nature. 2004 Nov 18;432(7015):361-8. Epub 2004 Sep 26. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15448704 15448704]
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Crystal structure of the calcium pump of sarcoplasmic reticulum at 2.6 A resolution., Toyoshima C, Nakasako M, Nomura H, Ogawa H, Nature. 2000 Jun 8;405(6787):647-55. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10864315 10864315]
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Structural changes in the calcium pump accompanying the dissociation of calcium., Toyoshima C, Nomura H, Nature. 2002 Aug 8;418(6898):605-11. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12167852 12167852]
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Crystal structure of the calcium pump with a bound ATP analogue., Toyoshima C, Mizutani T, Nature. 2004 Jul 29;430(6999):529-35. Epub 2004 Jun 30. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15229613 15229613]
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Structural role of countertransport revealed in Ca(2+) pump crystal structure in the absence of Ca(2+)., Obara K, Miyashita N, Xu C, Toyoshima I, Sugita Y, Inesi G, Toyoshima C, Proc Natl Acad Sci U S A. 2005 Oct 11;102(41):14489-96. Epub 2005 Sep 6. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16150713 16150713]
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Interdomain communication in calcium pump as revealed in the crystal structures with transmembrane inhibitors., Takahashi M, Kondou Y, Toyoshima C, Proc Natl Acad Sci U S A. 2007 Apr 3;104(14):5800-5. Epub 2007 Mar 26. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17389383 17389383]
[[Category: Calcium-transporting ATPase]]
[[Category: Calcium-transporting ATPase]]
[[Category: Oryctolagus cuniculus]]
[[Category: Oryctolagus cuniculus]]
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[[Category: Transmembrane]]
[[Category: Transmembrane]]
[[Category: Transport]]
[[Category: Transport]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 20:06:46 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 11:26:22 2008''

Revision as of 08:26, 28 July 2008

Image:2zbd.png

Template:STRUCTURE 2zbd

Crystal Structure of the SR Calcium Pump with Bound Aluminium Fluoride, ADP and Calcium

Template:ABSTRACT PUBMED 15448704

About this Structure

2ZBD is a Single protein structure of sequence from Oryctolagus cuniculus. This structure supersedes the now removed PDB entries and 1wpe. Full crystallographic information is available from OCA.

Reference

Lumenal gating mechanism revealed in calcium pump crystal structures with phosphate analogues., Toyoshima C, Nomura H, Tsuda T, Nature. 2004 Nov 18;432(7015):361-8. Epub 2004 Sep 26. PMID:15448704

Crystal structure of the calcium pump of sarcoplasmic reticulum at 2.6 A resolution., Toyoshima C, Nakasako M, Nomura H, Ogawa H, Nature. 2000 Jun 8;405(6787):647-55. PMID:10864315

Structural changes in the calcium pump accompanying the dissociation of calcium., Toyoshima C, Nomura H, Nature. 2002 Aug 8;418(6898):605-11. PMID:12167852

Crystal structure of the calcium pump with a bound ATP analogue., Toyoshima C, Mizutani T, Nature. 2004 Jul 29;430(6999):529-35. Epub 2004 Jun 30. PMID:15229613

Structural role of countertransport revealed in Ca(2+) pump crystal structure in the absence of Ca(2+)., Obara K, Miyashita N, Xu C, Toyoshima I, Sugita Y, Inesi G, Toyoshima C, Proc Natl Acad Sci U S A. 2005 Oct 11;102(41):14489-96. Epub 2005 Sep 6. PMID:16150713

Interdomain communication in calcium pump as revealed in the crystal structures with transmembrane inhibitors., Takahashi M, Kondou Y, Toyoshima C, Proc Natl Acad Sci U S A. 2007 Apr 3;104(14):5800-5. Epub 2007 Mar 26. PMID:17389383

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