6FSA

Beta-Cardiac myosin post-rigor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.33 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Hypertrophic cardiomyopathy disease results from disparate impairments of cardiac myosin function and auto-inhibition.

Robert-Paganin, J.Auguin, D.Houdusse, A.

(2018) Nat Commun 9: 4019-4019

  • DOI: 10.1038/s41467-018-06191-4

  • PubMed Abstract: 
  • Hypertrophic cardiomyopathies (HCM) result from distinct single-point mutations in sarcomeric proteins that lead to muscle hypercontractility. While different models account for a pathological increase in the power output, clear understanding of the ...

    Hypertrophic cardiomyopathies (HCM) result from distinct single-point mutations in sarcomeric proteins that lead to muscle hypercontractility. While different models account for a pathological increase in the power output, clear understanding of the molecular basis of dysfunction in HCM is the mandatory next step to improve current treatments. Here, we present an optimized quasi-atomic model of the sequestered state of cardiac myosin coupled to X-ray crystallography and in silico analysis of the mechanical compliance of the lever arm, allowing the systematic study of a large set of HCM mutations and the definition of different mutation classes based on their effects on lever arm compliance, sequestered state stability, and motor functions. The present work reconciles previous models and explains how distinct HCM mutations can have disparate effects on the motor mechano-chemical parameters and yet lead to the same disease. The framework presented here can guide future investigations aiming at finding HCM treatments.


    Organizational Affiliation

    Structural Motility, Institut Curie, PSL Research University, CNRS, UMR 144, F-75005, Paris, France.,Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), Université d'Orléans, INRA, USC1328, 45067, Orléans, France. auguin@univ-orleans.fr.,Structural Motility, Institut Curie, PSL Research University, CNRS, UMR 144, F-75005, Paris, France. anne.houdusse@curie.fr.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Myosin-7
A, B
1935Bos taurusMutation(s): 0 
Gene Names: MYH7
Find proteins for Q9BE39 (Bos taurus)
Go to Gene View: MYH7
Go to UniProtKB:  Q9BE39
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Myosin light chain 3
D, H
199Bos taurusMutation(s): 0 
Gene Names: MYL3
Find proteins for P85100 (Bos taurus)
Go to Gene View: MYL3
Go to UniProtKB:  P85100
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FMT
Query on FMT

Download SDF File 
Download CCD File 
A, B
FORMIC ACID
C H2 O2
BDAGIHXWWSANSR-UHFFFAOYSA-N
 Ligand Interaction
ADP
Query on ADP

Download SDF File 
Download CCD File 
A, B
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A, B
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MLY
Query on MLY
A, B
L-PEPTIDE LINKINGC8 H18 N2 O2LYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.33 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.190 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 55.118α = 104.76
b = 94.319β = 92.34
c = 125.411γ = 100.06
Software Package:
Software NamePurpose
PHASERphasing
BUSTERrefinement
XDSdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
AFM (Association Francaise contre les Myopathies)France18423
AFM (Association Francaise contre les Myopathies)France17235
FRM (Fondation Pour la recherche medicale en France)FranceDBI20141231319

Revision History 

  • Version 1.0: 2018-07-25
    Type: Initial release
  • Version 1.1: 2018-09-19
    Type: Data collection, Database references
  • Version 1.2: 2019-08-07
    Type: Data collection, Database references