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Open data
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Basic information
| Entry | Database: PDB / ID: 8ser | |||||||||
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| Title | Cryo-EM Structure of RyR1 + Adenosine | |||||||||
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Keywords | TRANSPORT PROTEIN / Calcium ion channel / skeletal muscle / nucleotide / homotetramer | |||||||||
| Function / homology | Function and homology informationATP-gated ion channel activity / negative regulation of calcium-mediated signaling / ryanodine-sensitive calcium-release channel activity / terminal cisterna / ryanodine receptor complex / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / negative regulation of release of sequestered calcium ion into cytosol / response to redox state / ossification involved in bone maturation / cellular response to caffeine ...ATP-gated ion channel activity / negative regulation of calcium-mediated signaling / ryanodine-sensitive calcium-release channel activity / terminal cisterna / ryanodine receptor complex / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / negative regulation of release of sequestered calcium ion into cytosol / response to redox state / ossification involved in bone maturation / cellular response to caffeine / negative regulation of heart rate / skin development / 'de novo' protein folding / FK506 binding / organelle membrane / smooth endoplasmic reticulum / outflow tract morphogenesis / intracellularly gated calcium channel activity / glutathione transferase / glutathione transferase activity / regulation of ryanodine-sensitive calcium-release channel activity / toxic substance binding / voltage-gated calcium channel activity / calcium channel inhibitor activity / skeletal muscle fiber development / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / release of sequestered calcium ion into cytosol / Ion homeostasis / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / muscle contraction / sarcoplasmic reticulum membrane / calcium channel complex / striated muscle contraction / cellular response to calcium ion / peptidylprolyl isomerase / sarcoplasmic reticulum / peptidyl-prolyl cis-trans isomerase activity / calcium-mediated signaling / glutathione metabolic process / calcium channel regulator activity / protein maturation / sarcolemma / intracellular calcium ion homeostasis / Stimuli-sensing channels / Z disc / calcium channel activity / calcium ion transmembrane transport / disordered domain specific binding / protein refolding / protein folding / protein homotetramerization / transmembrane transporter binding / calmodulin binding / signaling receptor binding / calcium ion binding / ATP binding / membrane / identical protein binding / cytoplasm Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human)![]() | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.42 Å | |||||||||
Authors | Cholak, S. / Saville, J.W. / Zhu, X. / Berezuk, A.M. / Tuttle, K.S. / Haji-Ghassemi, O. / Van Petegem, F. / Subramaniam, S. | |||||||||
| Funding support | Canada, 2items
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Citation | Journal: Structure / Year: 2023Title: Allosteric modulation of ryanodine receptor RyR1 by nucleotide derivatives. Authors: Spencer Cholak / James W Saville / Xing Zhu / Alison M Berezuk / Katharine S Tuttle / Omid Haji-Ghassemi / Francisco J Alvarado / Filip Van Petegem / Sriram Subramaniam / ![]() Abstract: The coordinated release of Ca from the sarcoplasmic reticulum (SR) is critical for excitation-contraction coupling. This release is facilitated by ryanodine receptors (RyRs) that are embedded in the ...The coordinated release of Ca from the sarcoplasmic reticulum (SR) is critical for excitation-contraction coupling. This release is facilitated by ryanodine receptors (RyRs) that are embedded in the SR membrane. In skeletal muscle, activity of RyR1 is regulated by metabolites such as ATP, which upon binding increase channel open probability (P). To obtain structural insights into the mechanism of RyR1 priming by ATP, we determined several cryo-EM structures of RyR1 bound individually to ATP-γ-S, ADP, AMP, adenosine, adenine, and cAMP. We demonstrate that adenine and adenosine bind RyR1, but AMP is the smallest ATP derivative capable of inducing long-range (>170 Å) structural rearrangements associated with channel activation, establishing a structural basis for key binding site interactions that are the threshold for triggering quaternary structural changes. Our finding that cAMP also induces these structural changes and results in increased channel opening suggests its potential role as an endogenous modulator of RyR1 conductance. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8ser.cif.gz | 4.2 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb8ser.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 8ser.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/se/8ser ftp://data.pdbj.org/pub/pdb/validation_reports/se/8ser | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 40426MC ![]() 8senC ![]() 8seoC ![]() 8sepC ![]() 8seqC ![]() 8sesC ![]() 8setC ![]() 8seuC ![]() 8sevC ![]() 8sewC ![]() 8sexC ![]() 8seyC ![]() 8sezC ![]() 8sf0C M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Assembly
| Deposited unit | ![]()
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| Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments:
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Homo sapiens (human)

Canada, 2items
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