6JIY

Structure of RyR2 (F/A/C/H-Ca2+/Ca2+CaM dataset)

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Modulation of cardiac ryanodine receptor 2 by calmodulin.

Gong, D., Chi, X., Wei, J., Zhou, G., Huang, G., Zhang, L., Wang, R., Lei, J., Chen, S.R.W., Yan, N.

(2019) Nature 572: 347-351

  • DOI: 10.1038/s41586-019-1377-y
  • Primary Citation of Related Structures:  
    6JI0, 6JII, 6JI8, 6JIU, 6JIY, 6JRS, 6JRR, 6JV2

  • PubMed Abstract: 

    • The high-conductance intracellular calcium (Ca 2+ ) channel RyR2 is essential for the coupling of excitation and contraction in cardiac muscle. Among various modulators, calmodulin (CaM) regulates RyR2 in a Ca 2+ -dependent manner. Here we reveal the regulatory mechanism by which porcine RyR2 is modulated by human CaM through the structural determination of RyR2 under eight conditions ...

    The high-conductance intracellular calcium (Ca 2+ ) channel RyR2 is essential for the coupling of excitation and contraction in cardiac muscle. Among various modulators, calmodulin (CaM) regulates RyR2 in a Ca 2+ -dependent manner. Here we reveal the regulatory mechanism by which porcine RyR2 is modulated by human CaM through the structural determination of RyR2 under eight conditions. Apo-CaM and Ca 2+ -CaM bind to distinct but overlapping sites in an elongated cleft formed by the handle, helical and central domains. The shift in CaM-binding sites on RyR2 is controlled by Ca 2+ binding to CaM, rather than to RyR2. Ca 2+ -CaM induces rotations and intradomain shifts of individual central domains, resulting in pore closure of the PCB95 and Ca 2+ -activated channel. By contrast, the pore of the ATP, caffeine and Ca 2+ -activated channel remains open in the presence of Ca 2+ -CaM, which suggests that Ca 2+ -CaM is one of the many competing modulators of RyR2 gating.

    Organizational Affiliation: 

    Department of Molecular Biology, Princeton University, Princeton, NJ, USA. nyan@princeton.edu.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RyR2 A, D, G, J4968Sus scrofaMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Peptidyl-prolyl cis-trans isomerase FKBP1B B, E, H, K108Homo sapiensMutation(s): 0 
Gene Names: FKBP1B, FKBP12.6, FKBP1L, FKBP9, OTK4
EC: 5.2.1.8
Find proteins for P68106 (Homo sapiens)
Explore P68106 
Go to UniProtKB:  P68106
NIH Common Fund Data Resources
PHAROS:  P68106
GTEx:  ENSG00000119782
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Calmodulin-1 C, F, I, L149Homo sapiensMutation(s): 0 
Gene Names: CALM1, CALM, CAM, CAM1
Find proteins for P0DP23 (Homo sapiens)
Explore P0DP23 
Go to UniProtKB:  P0DP23
NIH Common Fund Data Resources
PHAROS:  P0DP23
GTEx:  ENSG00000198668
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP
Download Ideal Coordinates CCD File 
A, D, G, J
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N		 Ligand Interaction
CFF
Query on CFF
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A, D, G, J
CAFFEINE
C8 H10 N4 O2
RYYVLZVUVIJVGH-UHFFFAOYSA-N		 Ligand Interaction
ZN
Query on ZN
Download Ideal Coordinates CCD File 
A, D, G, J
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N		 Ligand Interaction
CA
Query on CA
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A, C, D, F, G, I, J, L
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-07-17
    Type: Initial release
  • Version 1.1: 2019-08-28
    Changes: Data collection, Database references, Source and taxonomy, Structure summary
  • Version 1.2: 2019-11-06
    Changes: Data collection, Other