Effects of hypertrophic and dilated cardiomyopathy mutations on power output by human β-cardiac myosin

JA Spudich, T Aksel, SR Bartholomew… - Journal of …, 2016 - journals.biologists.com
Hypertrophic cardiomyopathy is the most frequently occurring inherited cardiovascular
disease, with a prevalence of more than one in 500 individuals worldwide. Genetically …

Calmodulin dissociation regulates brush border myosin I (110-kD-calmodulin) mechanochemical activity in vitro.

K Collins, JR Sellers, P Matsudaira - The Journal of cell biology, 1990 - rupress.org
110-kD-calmodulin, when immobilized on nitrocellulose-coated coverslips, translocates
actin filaments at a maximal rate of 0.07-0.1 micron/s at 37 degrees C. Actin activates …

Mechanisms of myosin II force generation. Insights from novel experimental techniques and approaches

DE Rassier, A Månsson - Physiological Reviews, 2024 - journals.physiology.org
Myosin II is a molecular motor that converts chemical energy derived from ATP hydrolysis
into mechanical work. Myosin II isoforms are responsible for muscle contraction and a range …

Myosin VI: an innovative motor that challenged the swinging lever arm hypothesis

JA Spudich, S Sivaramakrishnan - Nature reviews Molecular cell …, 2010 - nature.com
The swinging crossbridge hypothesis states that energy from ATP hydrolysis is transduced
to mechanical movement of the myosin head while bound to actin. The light chain-binding …

Polarized actin bundles formed by human fascin‐1: their sliding and disassembly on myosin II and myosin V in vitro

R Ishikawa, T Sakamoto, T Ando… - Journal of …, 2003 - Wiley Online Library
Fascin‐1 is a putative bundling factor of actin filaments in the filopodia of neuronal growth
cones. Here, we examined the structure of the actin bundle formed by human fascin‐1 …

In pursuit of myosin function.

JA Spudich - Cell Regulation, 1989 - Am Soc Cell Biol
The discovery of highly efficient gene targeting in Dictyostelium (De Lozanne and Spudich,
1987) and the use of the antisense RNA approach in this organism (Knecht and Loomis …

Ca2+ and activation mechanisms in skeletal muscle

CC Ashley, IP Mulligan, TJ Lea - Quarterly reviews of biophysics, 1991 - cambridge.org
It has been known for a number of years that calcium ions play a crucial role in excitation-
contraction (ec) coupling (Sandow, 1952). The majority of the calcium required for this …

[HTML][HTML] Characterization of in vitro motility assays using smooth muscle and cytoplasmic myosins.

S Umemoto, JR Sellers - Journal of Biological Chemistry, 1990 - Elsevier
We have used two in vitro motility assays to study the relative movement of actin and myosin
from turkey gizzards (smooth muscle) and human platelets. In the Nitella-based in vitro …

Alternative myosin hinge regions are utilized in a tissue-specific fashion that correlates with muscle contraction speed.

VL Collier, WA Kronert, PT O'Donnell… - Genes & …, 1990 - genesdev.cshlp.org
By comparing the structure of wild-type and mutant muscle myosin heavy chain (MHC)
genes of Drosophila melanogaster, we have identified the defect in the homozygous-viable …

Myosin structure, allostery, and mechano-chemistry

M Preller, DJ Manstein - Structure, 2013 - cell.com
Aberrant actomyosin interactions contribute to a wide range of pathophysiological conditions
including heart failure, neurodegenerative disorders, and tumor growth. Despite surgical …