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- EMDB-19467: Structure of RyR1 in detergent in open state in complex with Ca2+... -
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Open data
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Basic information
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Title | Structure of RyR1 in detergent in open state in complex with Ca2+, ATP, caffeine and Nb9657. | ||||||||||||
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![]() | Ion channel / Ca2+ / tetramer / TRANSPORT PROTEIN | ||||||||||||
Function / homology | ![]() ATP-gated ion channel activity / terminal cisterna / ryanodine receptor complex / ryanodine-sensitive calcium-release channel activity / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / ossification involved in bone maturation / skin development / organelle membrane / cellular response to caffeine / intracellularly gated calcium channel activity ...ATP-gated ion channel activity / terminal cisterna / ryanodine receptor complex / ryanodine-sensitive calcium-release channel activity / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / ossification involved in bone maturation / skin development / organelle membrane / cellular response to caffeine / intracellularly gated calcium channel activity / outflow tract morphogenesis / regulation of ryanodine-sensitive calcium-release channel activity / toxic substance binding / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / voltage-gated calcium channel activity / smooth endoplasmic reticulum / striated muscle contraction / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / skeletal muscle fiber development / muscle contraction / release of sequestered calcium ion into cytosol / sarcoplasmic reticulum membrane / cellular response to calcium ion / sarcoplasmic reticulum / RNA polymerase II CTD heptapeptide repeat P3 isomerase activity / RNA polymerase II CTD heptapeptide repeat P6 isomerase activity / peptidylprolyl isomerase / sarcolemma / calcium channel activity / calcium ion transmembrane transport / Z disc / intracellular calcium ion homeostasis / disordered domain specific binding / protein homotetramerization / transmembrane transporter binding / calmodulin binding / intracellular membrane-bounded organelle / calcium ion binding / ATP binding / identical protein binding / membrane Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.2 Å | ||||||||||||
![]() | Li C / Efremov RG | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Rapid small-scale nanobody-assisted purification of ryanodine receptors for cryo-EM. Authors: Chenyao Li / Katrien Willegems / Tomasz Uchański / Els Pardon / Jan Steyaert / Rouslan G Efremov / ![]() Abstract: Ryanodine receptors (RyRs) are large Ca release channels residing in the endoplasmic or sarcoplasmic reticulum membrane. Three isoforms of RyRs have been identified in mammals, the disfunction of ...Ryanodine receptors (RyRs) are large Ca release channels residing in the endoplasmic or sarcoplasmic reticulum membrane. Three isoforms of RyRs have been identified in mammals, the disfunction of which has been associated with a series of life-threatening diseases. The need for large amounts of native tissue or eukaryotic cell cultures limits advances in structural studies of RyRs. Here, we report a method that utilizes nanobodies to purify RyRs from only 5 mg of total protein. The purification process, from isolated membranes to cryo-EM grade protein, is achieved within 4 h on the bench, yielding protein usable for cryo-EM analysis. This is demonstrated by solving the structures of rabbit RyR1, solubilized in detergent, reconstituted into lipid nanodiscs or liposomes, and bovine RyR2 reconstituted in nanodisc, and mouse RyR2 in detergent. The reported method facilitates structural studies of RyRs directed toward drug development and is useful in cases where the amount of starting material is limited. | ||||||||||||
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Structure visualization
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Downloads & links
-EMDB archive
Map data | ![]() | 132 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 20.6 KB 20.6 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.1 KB | Display | ![]() |
Images | ![]() | 71.9 KB | ||
Filedesc metadata | ![]() | 9.8 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 558.2 KB | Display | ![]() |
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Full document | ![]() | 557.8 KB | Display | |
Data in XML | ![]() | 12.7 KB | Display | |
Data in CIF | ![]() | 17 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8rrwMC ![]() 8rrsC ![]() 8rrtC ![]() 8rruC ![]() 8rrvC ![]() 8rrxC ![]() 8rs0C C: citing same article ( M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | composite map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.49 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
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Sample components
+Entire : Ryanodine receptor 1 complex with nanobody and FKBP12
+Supramolecule #1: Ryanodine receptor 1 complex with nanobody and FKBP12
+Supramolecule #2: Ryanodine receptor 1 in complex with FKBP12
+Supramolecule #3: Nanobody 9657
+Macromolecule #1: Ryanodine receptor 1
+Macromolecule #2: Peptidyl-prolyl cis-trans isomerase FKBP1B
+Macromolecule #3: Nanobody 9657
+Macromolecule #4: ZINC ION
+Macromolecule #5: ADENOSINE-5'-TRIPHOSPHATE
+Macromolecule #6: CAFFEINE
+Macromolecule #7: CALCIUM ION
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | JEOL CRYO ARM 300 |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm |