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Title: Skip residues modulate the structural properties of the myosin rod and guide thick filament assembly

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2];  [3];  [2];  [3];  [1];  [3];  [2];  [1]
  1. Univ. of Wisconsin, Madison, WI (United States). Dept. of Biochemistry
  2. Univ. of Colorado, Boulder, CO (United States). Dept. of Molecular, Cellular, and Developmental Biology. Bio Frontiers Inst.
  3. Univ. of Wisconsin, Madison, WI (United States). Dept. of Chemistry. Theoretical Chemistry Inst.

The rod of sarcomeric myosins directs thick filament assembly and is characterized by the insertion of four skip residues that introduce discontinuities in the coiled-coil heptad repeats. We report in this paper that the regions surrounding the first three skip residues share high structural similarity despite their low sequence homology. Near each of these skip residues, the coiled-coil transitions to a nonclose-packed structure inducing local relaxation of the superhelical pitch. Moreover, molecular dynamics suggest that these distorted regions can assume different conformationally stable states. In contrast, the last skip residue region constitutes a true molecular hinge, providing C-terminal rod flexibility. Assembly of myosin with mutated skip residues in cardiomyocytes shows that the functional importance of each skip residue is associated with rod position and reveals the unique role of the molecular hinge in promoting myosin antiparallel packing. By defining the biophysical properties of the rod, the structures and molecular dynamic calculations presented here provide insight into thick filament formation, and highlight the structural differences occurring between the coiled-coils of myosin and the stereotypical tropomyosin. Finally, in addition to extending our knowledge into the conformational and biological properties of coiled-coil discontinuities, the molecular characterization of the four myosin skip residues also provides a guide to modeling the effects of rod mutations causing cardiac and skeletal myopathies.

Research Organization:
Univ. of Wisconsin, Madison, WI (United States); Univ. of Colorado, Boulder, CO (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Inst. of Health (NIH) (United States); National Science Foundation (NSF)
Grant/Contract Number:
W-31-109-ENG-38; R21 HL111237; R01 GM29090; NSF-CHE1300209
OSTI ID:
1213724
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Vol. 112, Issue 29; ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 37 works
Citation information provided by
Web of Science

References (53)

Cardiomyocyte Preparation, Culture, and Gene Transfer book January 2007
Probing Designability via a Generalized Model of Helical Bundle Geometry journal January 2011
Are Protein Force Fields Getting Better? A Systematic Benchmark on 524 Diverse NMR Measurements journal March 2012
Mutations in MYH7 cause Multi-minicore Disease (MmD) with variable cardiac involvement journal December 2012
Mutations in the Sarcomere Gene MYH7 in Ebstein Anomaly journal February 2011
Multiple tail domain interactions stabilize nonmuscle myosin II bipolar filaments journal November 2010
Novel generalized Born methods journal June 2002
Structure and function of myosin filaments journal April 2006
Sequence divergence of coiled coils—structural rods, myosin filament packing, and the extraordinary conservation of cohesins journal May 2006
Numerical integration of the cartesian equations of motion of a system with constraints: molecular dynamics of n-alkanes journal March 1977
Structure of A-segments from frog and rabbit skeletal muscle journal January 1977
Generalized Born Model with a Simple, Robust Molecular Volume Correction journal December 2006
Deciphering the design of the tropomyosin molecule journal July 2001
Analysis of α-Helical Coiled Coils with the Program TWISTER Reveals a Structural Mechanism for Stutter Compensation journal January 2002
Three-dimensional structure of the vertebrate muscle A-band journal October 1981
Atomic model of the human cardiac muscle myosin filament journal December 2012
Routine Microsecond Molecular Dynamics Simulations with AMBER on GPUs. 1. Generalized Born journal April 2012
General model of myosin filament structure journal June 1973
Studies of the interaction between titin and myosin. journal December 1995
Atomic Structures of the Human Immunophilin FKBP-12 Complexes with FK506 and Rapamycin journal January 1993
Skip residues correlate with bends in the myosin tail journal November 1990
Your personalized protein structure: Andrei N. Lupas fused to GCN4 adaptors journal June 2014
Effects of Pathogenic Proline Mutations on Myosin Assembly journal February 2012
Skip Residues and Charge Interactions in Myosin II Coiled-coils: Implications for Molecular Packing journal October 2005
The Fourier transform of a coiled-coil journal September 1953
Characteristic features of amino acid residues in coiled-coil protein structures journal October 2004
Periodic charge distributions in the myosin rod amino acid sequence match cross-bridge spacings in muscle journal September 1982
The Shape and Flexibility of Tropomyosin Coiled Coils: Implications for Actin Filament Assembly and Regulation journal January 2010
NIH Image to ImageJ: 25 years of image analysis journal June 2012
Intermediate filament structure: the bottom-up approach journal February 2015
The sarcomeric cytoskeleton: who picks up the strain? journal February 2011
Packing of α-Helical Coiled-Coil Myosin Rods in Vertebrate Muscle Thick Filaments journal November 1995
The role of long ranged forces in determining the structure and properties of liquid water journal November 1983
A 29 residue region of the sarcomeric myosin rod is necessary for filament formation 1 1Edited by J. Karn journal February 1997
A simple and rapid method for generating a deletion by PCR journal May 1991
Periodic features in the amino acid sequence of nematode myosin rod journal March 1983
Coot model-building tools for molecular graphics journal November 2004
Probing the Flexibility of Tropomyosin and Its Binding to Filamentous Actin Using Molecular Dynamics Simulations journal October 2013
New phenotype and pathology features in MYH7-related distal myopathy journal July 2012
Analysis of gene duplication repeats in the myosin rod journal September 1983
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
Structure of the Tropomyosin Overlap Complex from Chicken Smooth Muscle: Insight into the Diversity of N-Terminal Recognition, journal June 2010
How sequence directs bending in tropomyosin and other two-stranded alpha-helical coiled coils: Direction of Bends in Alpha-Helical Coiled Coils journal May 2010
NMRPipe: A multidimensional spectral processing system based on UNIX pipes journal November 1995
X-ray structure of the GCN4 leucine zipper, a two-stranded, parallel coiled coil journal October 1991
Myosin filament assembly requires a cluster of four positive residues located in the rod domain journal June 2012
Determination of Alkali and Halide Monovalent Ion Parameters for Use in Explicitly Solvated Biomolecular Simulations journal July 2008
Fifty years of coiled-coils and α-helical bundles: A close relationship between sequence and structure journal September 2008
Three-Dimensional Structure of the M-region (Bare Zone) of Vertebrate Striated Muscle Myosin Filaments by Single-Particle Analysis journal November 2010
Phaser crystallographic software journal July 2007
NMR-Based Protein Potentials journal August 2010
Expression in Escherichia coli of fragments of the coiled-coil rod domain of rabbit myosin: influence of different regions of the molecule on aggregation and paracrystal formation journal August 1991
[20] Processing of X-ray diffraction data collected in oscillation mode book January 1997

Cited By (9)

Membrane Trafficking: An Endosome Tether Meets a Rab and Collapses journal October 2016
Crystallography of lamin A facilitated by chimeric fusions preprint February 2020
Structure and function of Spc42 coiled-coils in yeast centrosome assembly and duplication journal June 2019
Kinesin-2 KIF3AC and KIF3AB Can Drive Long-Range Transport along Microtubules journal October 2015
Family-specific Kinesin Structures Reveal Neck-linker Length Based on Initiation of the Coiled-coil journal July 2016
Clinical diversity of MYH7 ‐related cardiomyopathies: Insights into genotype–phenotype correlations journal December 2018
The SH3 domain of UNC-89 (obscurin) interacts with paramyosin, a coiled-coil protein, in Caenorhabditis elegans muscle journal May 2016
A1603P and K1617del, Mutations in β-Cardiac Myosin Heavy Chain that Cause Laing Early-Onset Distal Myopathy, Affect Secondary Structure and Filament Formation In Vitro and In Vivo journal May 2018
Insights into myosin regulatory and essential light chains: a focus on their roles in cardiac and skeletal muscle function, development and disease journal May 2019

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