Regulating striated muscle contraction: Through thick and thin

E Brunello, L Fusi - Annual Review of Physiology, 2024 - annualreviews.org
Force generation in striated muscle is primarily controlled by structural changes in the actin-
containing thin filaments triggered by an increase in intracellular calcium concentration …

The actin-myosin interaction in muscle: Background and overview

J Squire - International journal of molecular sciences, 2019 - mdpi.com
Muscular contraction is a fundamental phenomenon in all animals; without it life as we know
it would be impossible. The basic mechanism in muscle, including heart muscle, involves …

Structure of the native myosin filament in the relaxed cardiac sarcomere

D Tamborrini, Z Wang, T Wagner, S Tacke, M Stabrin… - Nature, 2023 - nature.com
The thick filament is a key component of sarcomeres, the basic units of striated muscle.
Alterations in thick filament proteins are associated with familial hypertrophic …

Cryo-EM structure of the human cardiac myosin filament

D Dutta, V Nguyen, KS Campbell, R Padrón, R Craig - Nature, 2023 - nature.com
Pumping of the heart is powered by filaments of the motor protein myosin that pull on actin
filaments to generate cardiac contraction. In addition to myosin, the filaments contain cardiac …

MyBP-C: one protein to govern them all

L Heling, MA Geeves, NM Kad - Journal of muscle research and cell …, 2020 - Springer
The heart is an extraordinarily versatile pump, finely tuned to respond to a multitude of
demands. Given the heart pumps without rest for decades its efficiency is particularly …

Stretching the story of titin and muscle function

WA Linke - Journal of biomechanics, 2023 - Elsevier
The discovery of the giant protein titin, also known as connectin, dates almost half a century
back. In this review, I recapitulate major advances in the discovery of the titin filaments and …

Structural and signaling proteins in the Z-disk and their role in cardiomyopathies

M Noureddine, K Gehmlich - Frontiers in Physiology, 2023 - frontiersin.org
The sarcomere is the smallest functional unit of muscle contraction. It is delineated by a
protein-rich structure known as the Z-disk, alternating with M-bands. The Z-disk anchors the …

Myosin-binding protein H-like regulates myosin-binding protein distribution and function in atrial cardiomyocytes

DY Barefield, P Tonino, KC Woulfe… - Proceedings of the …, 2023 - National Acad Sciences
Mutations in atrial-enriched genes can cause a primary atrial myopathy that can contribute to
overall cardiovascular dysfunction. MYBPHL encodes myosin-binding protein H-like (MyBP …

Titin activates myosin filaments in skeletal muscle by switching from an extensible spring to a mechanical rectifier

C Squarci, P Bianco, M Reconditi… - Proceedings of the …, 2023 - National Acad Sciences
Titin is a molecular spring in parallel with myosin motors in each muscle half-sarcomere,
responsible for passive force development at sarcomere length (SL) above the physiological …

The mechanics of the heart: zooming in on hypertrophic cardiomyopathy and cMyBP‐C

C Suay‐Corredera, J Alegre‐Cebollada - FEBS letters, 2022 - Wiley Online Library
Hypertrophic cardiomyopathy (HCM), a disease characterized by cardiac muscle
hypertrophy and hypercontractility, is the most frequently inherited disorder of the heart …