Human cardiac troponin complex. Structure and functions

IA Katrukha - Biochemistry (Moscow), 2013 - Springer
Troponin complex is a component of skeletal and cardiac muscle thin filaments. It consists of
three subunits—troponin I, T, and C, and it plays a crucial role in muscle activity, connecting …

Cardiac disorders and pathophysiology of sarcomeric proteins

J van der Velden, GJM Stienen - Physiological reviews, 2019 - journals.physiology.org
The sarcomeric proteins represent the structural building blocks of heart muscle, which are
essential for contraction and relaxation. During recent years, it has become evident that …

Structures from intact myofibrils reveal mechanism of thin filament regulation through nebulin

Z Wang, M Grange, S Pospich, T Wagner, AL Kho… - Science, 2022 - science.org
In skeletal muscle, nebulin stabilizes and regulates the length of thin filaments, but the
underlying mechanism remains nebulous. In this work, we used cryo–electron tomography …

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 …

Historical perspective on heart function: the Frank–Starling Law

V Sequeira, J van der Velden - Biophysical reviews, 2015 - Springer
More than a century of research on the Frank–Starling Law has significantly advanced our
knowledge about the working heart. The Frank–Starling Law mandates that the heart is able …

Troponin structure and function: a view of recent progress

S Marston, JE Zamora - Journal of muscle research and cell motility, 2020 - Springer
The molecular mechanism by which Ca 2+ binding and phosphorylation regulate muscle
contraction through Troponin is not yet fully understood. Revealing the differences between …

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) …

Biochemical and physicochemical characteristics of the major muscle proteins from fish and shellfish

Y Ochiai, H Ozawa - Fisheries science, 2020 - Springer
Fish and marine invertebrates constitute an important part of the human diet worldwide, and
their muscles are the major edible parts. The muscles are a rich source of proteins, which in …

Loss of crossbridge inhibition drives pathological cardiac hypertrophy in patients harboring the TPM1 E192K mutation

LR Sewanan, J Park, MJ Rynkiewicz… - Journal of General …, 2021 - rupress.org
Hypertrophic cardiomyopathy (HCM) is an inherited disorder caused primarily by mutations
to thick and thinfilament proteins. Although thin filament mutations are less prevalent than …

Cardiac myosin binding protein-C: redefining its structure and function

S Sadayappan, PP de Tombe - Biophysical reviews, 2012 - Springer
Mutations of cardiac myosin binding protein-C (cMyBP-C) are inherited by an estimated 60
million people worldwide, and the protein is the target of several kinases. Recent evidence …