3fps

From Proteopedia

(Difference between revisions)

Revision as of 15:31, 1 November 2023

The Structure of Sarcoplasmic Reticulum Ca2+-ATPase Bound To Cyclopiazonic and ADP

Structural highlights

3fps is a 1 chain structure with sequence from Oryctolagus cuniculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 3.2Å
Ligands:	, ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

AT2A1_RABIT This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction (By similarity).

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

We have determined the structure of the sarco(endo)plasmic reticulum Ca(2+)-ATPase (SERCA) in an E2.P(i)-like form stabilized as a complex with MgF(4)(2-), an ATP analog, adenosine 5'-(beta,gamma-methylene)triphosphate (AMPPCP), and cyclopiazonic acid (CPA). The structure determined at 2.5A resolution leads to a significantly revised model of CPA binding when compared with earlier reports. It shows that a divalent metal ion is required for CPA binding through coordination of the tetramic acid moiety at a characteristic kink of the M1 helix found in all P-type ATPase structures, which is expected to be part of the cytoplasmic cation access pathway. Our model is consistent with the biochemical data on CPA function and provides new measures in structure-based drug design targeting Ca(2+)-ATPases, e.g. from pathogens. We also present an extended structural basis of ATP modulation pinpointing key residues at or near the ATP binding site. A structural comparison to the Na(+),K(+)-ATPase reveals that the Phe(93) side chain occupies the equivalent binding pocket of the CPA site in SERCA, suggesting an important role of this residue in stabilization of the potassium-occluded E2 state of Na(+),K(+)-ATPase.

Cyclopiazonic acid is complexed to a divalent metal ion when bound to the sarcoplasmic reticulum Ca2+-ATPase.,Laursen M, Bublitz M, Moncoq K, Olesen C, Moller JV, Young HS, Nissen P, Morth JP J Biol Chem. 2009 May 15;284(20):13513-8. Epub 2009 Mar 16. PMID:19289472^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Laursen M, Bublitz M, Moncoq K, Olesen C, Moller JV, Young HS, Nissen P, Morth JP. Cyclopiazonic acid is complexed to a divalent metal ion when bound to the sarcoplasmic reticulum Ca2+-ATPase. J Biol Chem. 2009 May 15;284(20):13513-8. Epub 2009 Mar 16. PMID:19289472 doi:10.1074/jbc.C900031200

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3fps"

@@ Line 3: / Line 3: @@
 <StructureSection load='3fps' size='340' side='right'caption='[[3fps]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3fps]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/European_rabbit European rabbit]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FPS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FPS FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3fps]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FPS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FPS 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=CZA:(6AR,11AS,11BR)-10-ACETYL-9-HYDROXY-7,7-DIMETHYL-2,6,6A,7,11A,11B-HEXAHYDRO-11H-PYRROLO[1,2 2,3]ISOINDOLO[4,5,6-CD]INDOL-11-ONE'>CZA</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]] 3.2&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2oa0|2oa0]]</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=CZA:(6AR,11AS,11BR)-10-ACETYL-9-HYDROXY-7,7-DIMETHYL-2,6,6A,7,11A,11B-HEXAHYDRO-11H-PYRROLO[1,2 2,3]ISOINDOLO[4,5,6-CD]INDOL-11-ONE'>CZA</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Calcium-transporting_ATPase Calcium-transporting ATPase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.3.8 3.6.3.8] </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=3fps FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fps OCA], [https://pdbe.org/3fps PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3fps RCSB], [https://www.ebi.ac.uk/pdbsum/3fps PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3fps ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/AT2A1_RABIT AT2A1_RABIT]] This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction (By similarity).
+[https://www.uniprot.org/uniprot/AT2A1_RABIT AT2A1_RABIT] This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction (By similarity).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 37: / Line 36: @@
 __TOC__
 </StructureSection>
-[[Category: Calcium-transporting ATPase]]
-[[Category: European rabbit]]
 [[Category: Large Structures]]
-[[Category: Bublitz, M]]
+[[Category: Oryctolagus cuniculus]]
-[[Category: Laursen, M]]
+[[Category: Bublitz M]]
-[[Category: Moncoq, K]]
+[[Category: Laursen M]]
-[[Category: Morth, J P]]
+[[Category: Moncoq K]]
-[[Category: Nissen, P]]
+[[Category: Morth JP]]
-[[Category: Young, H S]]
+[[Category: Nissen P]]
-[[Category: Calcium-transporting atpase sarcoplasmic reticulum]]
+[[Category: Young HS]]
-[[Category: Endoplasmic reticulum]]
-[[Category: Fast twitch skeletal muscle isoform]]
-[[Category: Hydrolase]]

3fps

From Proteopedia

Revision as of 15:31, 1 November 2023

The Structure of Sarcoplasmic Reticulum Ca2+-ATPase Bound To Cyclopiazonic and ADP

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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