8x49: Difference between revisions

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'''Unreleased structure'''


The entry 8x49 is ON HOLD  until Paper Publication
==Cryo-EM structure of Ryanodine receptor 1 (100 nM Ca2+)==
 
<StructureSection load='8x49' size='340' side='right'caption='[[8x49]], [[Resolution|resolution]] 3.40&Aring;' scene=''>
Authors: Chen, Q., Hu, H.
== Structural highlights ==
 
<table><tr><td colspan='2'>[[8x49]] is a 4 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=8X49 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8X49 FirstGlance]. <br>
Description: Cryo-EM structure of Ryanodine receptor 1 (100 nM Ca2+)
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.4&#8491;</td></tr>
[[Category: Unreleased Structures]]
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
[[Category: Chen, Q]]
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8x49 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8x49 OCA], [https://pdbe.org/8x49 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8x49 RCSB], [https://www.ebi.ac.uk/pdbsum/8x49 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8x49 ProSAT]</span></td></tr>
[[Category: Hu, H]]
</table>
== Function ==
[https://www.uniprot.org/uniprot/RYR1_RABIT RYR1_RABIT] Calcium channel that mediates the release of Ca(2+) from the sarcoplasmic reticulum into the cytoplasm and thereby plays a key role in triggering muscle contraction following depolarization of T-tubules. Repeated very high-level exercise increases the open probability of the channel and leads to Ca(2+) leaking into the cytoplasm. Can also mediate the release of Ca(2+) from intracellular stores in neurons, and may thereby promote prolonged Ca(2+) signaling in the brain. Required for normal embryonic development of muscle fibers and skeletal muscle. Required for normal heart morphogenesis, skin development and ossification during embryogenesis (By similarity).<ref>PMID:10388749</ref> <ref>PMID:22036948</ref>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Oryctolagus cuniculus]]
[[Category: Chen Q]]
[[Category: Hu H]]

Latest revision as of 10:58, 5 March 2025

Cryo-EM structure of Ryanodine receptor 1 (100 nM Ca2+)Cryo-EM structure of Ryanodine receptor 1 (100 nM Ca2+)

Structural highlights

8x49 is a 4 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:Electron Microscopy, Resolution 3.4Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

RYR1_RABIT Calcium channel that mediates the release of Ca(2+) from the sarcoplasmic reticulum into the cytoplasm and thereby plays a key role in triggering muscle contraction following depolarization of T-tubules. Repeated very high-level exercise increases the open probability of the channel and leads to Ca(2+) leaking into the cytoplasm. Can also mediate the release of Ca(2+) from intracellular stores in neurons, and may thereby promote prolonged Ca(2+) signaling in the brain. Required for normal embryonic development of muscle fibers and skeletal muscle. Required for normal heart morphogenesis, skin development and ossification during embryogenesis (By similarity).[1] [2]

References

  1. Dulhunty AF, Laver DR, Gallant EM, Casarotto MG, Pace SM, Curtis S. Activation and inhibition of skeletal RyR channels by a part of the skeletal DHPR II-III loop: effects of DHPR Ser687 and FKBP12. Biophys J. 1999 Jul;77(1):189-203. PMID:10388749 doi:10.1016/S0006-3495(99)76881-5
  2. Kakizawa S, Yamazawa T, Chen Y, Ito A, Murayama T, Oyamada H, Kurebayashi N, Sato O, Watanabe M, Mori N, Oguchi K, Sakurai T, Takeshima H, Saito N, Iino M. Nitric oxide-induced calcium release via ryanodine receptors regulates neuronal function. EMBO J. 2011 Oct 28;31(2):417-28. doi: 10.1038/emboj.2011.386. PMID:22036948 doi:10.1038/emboj.2011.386

8x49, resolution 3.40Å

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