This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1vfp
From Proteopedia
| Line 1: | Line 1: | ||
| - | [[Image:1vfp.jpg|left|200px]] | + | [[Image:1vfp.jpg|left|200px]] |
| - | + | ||
| - | '''Crystal structure of the SR CA2+-ATPase with bound AMPPCP''' | + | {{Structure |
| + | |PDB= 1vfp |SIZE=350|CAPTION= <scene name='initialview01'>1vfp</scene>, resolution 2.90Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=ACP:PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER'>ACP</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Calcium-transporting_ATPase Calcium-transporting ATPase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.3.8 3.6.3.8] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''Crystal structure of the SR CA2+-ATPase with bound AMPPCP''' | ||
| + | |||
==Overview== | ==Overview== | ||
| Line 7: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
| - | 1VFP is a [ | + | 1VFP is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VFP OCA]. |
==Reference== | ==Reference== | ||
| - | 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:// | + | 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] |
[[Category: Calcium-transporting ATPase]] | [[Category: Calcium-transporting ATPase]] | ||
[[Category: Oryctolagus cuniculus]] | [[Category: Oryctolagus cuniculus]] | ||
| Line 23: | Line 32: | ||
[[Category: p-type atpase]] | [[Category: p-type atpase]] | ||
| - | ''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 14:44:56 2008'' |
Revision as of 12:45, 20 March 2008
| |||||||
| , resolution 2.90Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , and | ||||||
| Activity: | Calcium-transporting ATPase, with EC number 3.6.3.8 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of the SR CA2+-ATPase with bound AMPPCP
Overview
P-type ATPases are ATP-powered ion pumps that establish ion concentration gradients across cell and organelle membranes. Here, we describe the crystal structure of the Ca2+ pump of skeletal muscle sarcoplasmic reticulum, a representative member of the P-type ATPase superfamily, with an ATP analogue, a Mg2+ and two Ca2+ ions in the respective binding sites. In this state, the ATP analogue reorganizes the three cytoplasmic domains (A, N and P), which are widely separated without nucleotide, by directly bridging the N and P domains. The structure of the P-domain itself is altered by the binding of the ATP analogue and Mg2+. As a result, the A-domain is tilted so that one of the transmembrane helices moves to lock the cytoplasmic gate of the transmembrane Ca2+-binding sites. This appears to be the mechanism for occluding the bound Ca2+ ions, before releasing them into the lumen of the sarcoplasmic reticulum.
About this Structure
1VFP is a Single protein structure of sequence from Oryctolagus cuniculus. Full crystallographic information is available from OCA.
Reference
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
Page seeded by OCA on Thu Mar 20 14:44:56 2008
