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| | <StructureSection load='7bt2' size='340' side='right'caption='[[7bt2]], [[Resolution|resolution]] 3.00Å' scene=''> | | <StructureSection load='7bt2' size='340' side='right'caption='[[7bt2]], [[Resolution|resolution]] 3.00Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[7bt2]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7BT2 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=7BT2 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[7bt2]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7BT2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7BT2 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</scene>, <scene name='pdbligand=PCW:1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE'>PCW</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]] 3.0000286Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ATP2A2, ATP2B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</scene>, <scene name='pdbligand=PCW:1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE'>PCW</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/P-type_Ca(2+)_transporter P-type Ca(2+) transporter], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=7.2.2.10 7.2.2.10] </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=7bt2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7bt2 OCA], [https://pdbe.org/7bt2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7bt2 RCSB], [https://www.ebi.ac.uk/pdbsum/7bt2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7bt2 ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=7bt2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7bt2 OCA], [http://pdbe.org/7bt2 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=7bt2 RCSB], [http://www.ebi.ac.uk/pdbsum/7bt2 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=7bt2 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Disease == | | == Disease == |
| - | [[http://www.uniprot.org/uniprot/AT2A2_HUMAN AT2A2_HUMAN]] Darier disease;Acrokeratosis verruciformis of Hopf. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry. | + | [https://www.uniprot.org/uniprot/AT2A2_HUMAN AT2A2_HUMAN] Darier disease;Acrokeratosis verruciformis of Hopf. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry. |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/AT2A2_HUMAN AT2A2_HUMAN]] This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Isoform 2 is involved in the regulation of the contraction/relaxation cycle (PubMed:16402920). Acts as a regulator of TNFSF11-mediated Ca(2+) signaling pathways via its interaction with TMEM64 which is critical for the TNFSF11-induced CREB1 activation and mitochondrial ROS generation necessary for proper osteoclast generation. Association between TMEM64 and SERCA2 in the ER leads to cytosolic Ca (2+) spiking for activation of NFATC1 and production of mitochondrial ROS, thereby triggering Ca (2+) signaling cascades that promote osteoclast differentiation and activation (By similarity).[UniProtKB:O55143]<ref>PMID:16402920</ref> | + | [https://www.uniprot.org/uniprot/AT2A2_HUMAN AT2A2_HUMAN] This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Isoform 2 is involved in the regulation of the contraction/relaxation cycle (PubMed:16402920). Acts as a regulator of TNFSF11-mediated Ca(2+) signaling pathways via its interaction with TMEM64 which is critical for the TNFSF11-induced CREB1 activation and mitochondrial ROS generation necessary for proper osteoclast generation. Association between TMEM64 and SERCA2 in the ER leads to cytosolic Ca (2+) spiking for activation of NFATC1 and production of mitochondrial ROS, thereby triggering Ca (2+) signaling cascades that promote osteoclast differentiation and activation (By similarity).[UniProtKB:O55143]<ref>PMID:16402920</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </div> | | </div> |
| | <div class="pdbe-citations 7bt2" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 7bt2" style="background-color:#fffaf0;"></div> |
| | + | |
| | + | ==See Also== |
| | + | *[[ATPase 3D structures|ATPase 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Kabashima, Y]] | + | [[Category: Kabashima Y]] |
| - | [[Category: Nakajima, R]] | + | [[Category: Nakajima R]] |
| - | [[Category: Ogawa, H]] | + | [[Category: Ogawa H]] |
| - | [[Category: Toyoshima, C]] | + | [[Category: Toyoshima C]] |
| - | [[Category: Ca2+-atpase]]
| + | |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: P-type atpase]]
| + | |
| Structural highlights
Disease
AT2A2_HUMAN Darier disease;Acrokeratosis verruciformis of Hopf. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry.
Function
AT2A2_HUMAN This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Isoform 2 is involved in the regulation of the contraction/relaxation cycle (PubMed:16402920). Acts as a regulator of TNFSF11-mediated Ca(2+) signaling pathways via its interaction with TMEM64 which is critical for the TNFSF11-induced CREB1 activation and mitochondrial ROS generation necessary for proper osteoclast generation. Association between TMEM64 and SERCA2 in the ER leads to cytosolic Ca (2+) spiking for activation of NFATC1 and production of mitochondrial ROS, thereby triggering Ca (2+) signaling cascades that promote osteoclast differentiation and activation (By similarity).[UniProtKB:O55143][1]
Publication Abstract from PubMed
Under physiological conditions, most Ca(2+)-ATPase (SERCA) molecules bind ATP before binding the Ca(2+) transported. SERCA has a high affinity for ATP even in the absence of Ca(2+), and ATP accelerates Ca(2+) binding at pH values lower than 7, where SERCA is in the E2 state with low-affinity Ca(2+)-binding sites. Here we describe the crystal structure of SERCA2a, the isoform predominant in cardiac muscle, in the E2.ATP state at 3.0-A resolution. In the crystal structure, the arrangement of the cytoplasmic domains is distinctly different from that in canonical E2. The A-domain now takes an E1 position, and the N-domain occupies exactly the same position as that in the E1.ATP.2Ca(2+) state relative to the P-domain. As a result, ATP is properly delivered to the phosphorylation site. Yet phosphoryl transfer never takes place without the filling of the two transmembrane Ca(2+)-binding sites. The present crystal structure explains what ATP binding itself does to SERCA and how nonproductive phosphorylation is prevented in E2.
What ATP binding does to the Ca(2+) pump and how nonproductive phosphoryl transfer is prevented in the absence of Ca(2).,Kabashima Y, Ogawa H, Nakajima R, Toyoshima C Proc Natl Acad Sci U S A. 2020 Jul 16. pii: 2006027117. doi:, 10.1073/pnas.2006027117. PMID:32675243[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Dally S, Bredoux R, Corvazier E, Andersen JP, Clausen JD, Dode L, Fanchaouy M, Gelebart P, Monceau V, Del Monte F, Gwathmey JK, Hajjar R, Chaabane C, Bobe R, Raies A, Enouf J. Ca2+-ATPases in non-failing and failing heart: evidence for a novel cardiac sarco/endoplasmic reticulum Ca2+-ATPase 2 isoform (SERCA2c). Biochem J. 2006 Apr 15;395(2):249-58. doi: 10.1042/BJ20051427. PMID:16402920 doi:http://dx.doi.org/10.1042/BJ20051427
- ↑ Kabashima Y, Ogawa H, Nakajima R, Toyoshima C. What ATP binding does to the Ca(2+) pump and how nonproductive phosphoryl transfer is prevented in the absence of Ca(2). Proc Natl Acad Sci U S A. 2020 Jul 16. pii: 2006027117. doi:, 10.1073/pnas.2006027117. PMID:32675243 doi:http://dx.doi.org/10.1073/pnas.2006027117
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