Myofilament length dependent activation
The Frank–Starling law of the heart describes the interrelationship between end-diastolic
volume and cardiac ejection volume, a regulatory system that operates on a beat-to-beat …
volume and cardiac ejection volume, a regulatory system that operates on a beat-to-beat …
Cardiac MyBP-C regulates the rate and force of contraction in mammalian myocardium
RL Moss, DP Fitzsimons, JC Ralphe - Circulation research, 2015 - Am Heart Assoc
Cardiac myosin–binding protein-C (cMyBP-C) is a thick filament-associated protein that
seems to contribute to the regulation of cardiac contraction through interactions with either …
seems to contribute to the regulation of cardiac contraction through interactions with either …
The structure of the native cardiac thin filament at systolic Ca2+ levels
CM Risi, I Pepper, B Belknap… - Proceedings of the …, 2021 - National Acad Sciences
Every heartbeat relies on cyclical interactions between myosin thick and actin thin filaments
orchestrated by rising and falling Ca2+ levels. Thin filaments are comprised of two actin …
orchestrated by rising and falling Ca2+ levels. Thin filaments are comprised of two actin …
The sliding filament theory since Andrew Huxley: multiscale and multidisciplinary muscle research
Two groundbreaking papers published in 1954 laid out the theory of the mechanism of
muscle contraction based on force-generating interactions between myofilaments in the …
muscle contraction based on force-generating interactions between myofilaments in the …
The Frank–Starling mechanism in vertebrate cardiac myocytes
HA Shiels, E White - Journal of Experimental Biology, 2008 - journals.biologists.com
SUMMARY The Frank–Starling law of the heart applies to all classes of vertebrates. It
describes how stretch of cardiac muscle, up to an optimum length, increases contractility …
describes how stretch of cardiac muscle, up to an optimum length, increases contractility …
Cardiac remodeling in fish: strategies to maintain heart function during temperature change
Rainbow trout remain active in waters that seasonally change between 4° C and 20° C. To
explore how these fish are able to maintain cardiac function over this temperature range we …
explore how these fish are able to maintain cardiac function over this temperature range we …
High-resolution cryo-EM structure of the junction region of the native cardiac thin filament in relaxed state
CM Risi, B Belknap, HD White, K Dryden, JR Pinto… - PNAS …, 2023 - academic.oup.com
Cardiac contraction depends on molecular interactions among sarcomeric proteins
coordinated by the rising and falling intracellular Ca2+ levels. Cardiac thin filament (cTF) …
coordinated by the rising and falling intracellular Ca2+ levels. Cardiac thin filament (cTF) …
Coupling of adjacent tropomyosins enhances cross-bridge-mediated cooperative activation in a markov model of the cardiac thin filament
SG Campbell, FV Lionetti, KS Campbell… - Biophysical journal, 2010 - cell.com
We developed a Markov model of cardiac thin filament activation that accounts for
interactions among nearest-neighbor regulatory units (RUs) in a spatially explicit manner …
interactions among nearest-neighbor regulatory units (RUs) in a spatially explicit manner …
Cardiac function and modulation of sarcomeric function by length
LM Hanft, FS Korte, KS McDonald - Cardiovascular research, 2008 - academic.oup.com
Abstract The Frank–Starling relationship provides beat-to-beat regulation of ventricular
function by matching ventricular input and output. This review addresses the subcellular …
function by matching ventricular input and output. This review addresses the subcellular …
Calcium binding kinetics of troponin C strongly modulate cooperative activation and tension kinetics in cardiac muscle
Tension development and relaxation in cardiac muscle are regulated at the thin filament via
Ca2+ binding to cardiac troponin C (cTnC) and strong cross-bridge binding. However, the …
Ca2+ binding to cardiac troponin C (cTnC) and strong cross-bridge binding. However, the …