TNNI1, TNNI2 and TNNI3: Evolution, regulation, and protein structure–function relationships

JJ Sheng, JP ** - Gene, 2016 - Elsevier
Troponin I (TnI) is the inhibitory subunit of the troponin complex in the sarcomeric thin
filament of striated muscle and plays a central role in the calcium regulation of contraction …

Genetic insights into primary restrictive cardiomyopathy

A Brodehl, B Gerull - Journal of Clinical Medicine, 2022 - mdpi.com
Restrictive cardiomyopathy is a rare cardiac disease causing severe diastolic dysfunction,
ventricular stiffness and dilated atria. In consequence, it induces heart failure often with …

[HTML][HTML] Echocardiographic evaluation of diastolic function in mouse models of heart disease

M Schnelle, N Catibog, M Zhang… - Journal of molecular and …, 2018 - Elsevier
Background Mouse models of heart disease are extensively employed. The
echocardiographic characterization of contractile function is usually focused on systolic …

Molecular mechanisms in cardiomyopathy

K Dadson, L Hauck, F Billia - Clinical Science, 2017 - portlandpress.com
Cardiomyopathies represent a heterogeneous group of diseases that negatively affect heart
function. Primary cardiomyopathies specifically target the myocardium, and may arise from …

Engineered cardiac tissue model of restrictive cardiomyopathy for drug discovery

BZ Wang, TR Nash, X Zhang, J Rao, L Abriola… - Cell Reports …, 2023 - cell.com
Restrictive cardiomyopathy (RCM) is defined as increased myocardial stiffness and impaired
diastolic relaxation leading to elevated ventricular filling pressures. Human variants in …

Genetic excision of the regulatory cardiac troponin I extension in high–heart rate mammal clades

W Joyce, K He, M Zhang, S Ogunsola, X Wu… - Science, 2024 - science.org
Mammalian cardiac troponin I (cTnI) contains a highly conserved amino-terminal extension
harboring protein kinase A targets [serine-23 and-24 (Ser23/24)] that are phosphorylated …

Non-canonical localization of cardiac troponins: expanding functions or causing pathologies?

EA Arifulin, EV Sheval - International Journal of Molecular Sciences, 2024 - mdpi.com
The troponin complex—consisting of three subunits: troponin C (TnC), cardiac troponin I
(cTnI) and cardiac troponin T (cTnT)—plays a key role in the regulation of myocardial …

Desensitization of Myofilaments to Ca2+ as a Therapeutic Target for Hypertrophic Cardiomyopathy With Mutations in Thin Filament Proteins

ML Alves, FAL Dias, RD Gaffin, JN Simon… - Circulation …, 2014 - ahajournals.org
Background—Hypertrophic cardiomyopathy (HCM) is a common genetic disorder caused
mainly by mutations in sarcomeric proteins and is characterized by maladaptive myocardial …

The cardiomyocyte origins of diastolic dysfunction: Cellular components of myocardial “stiffness”

JV Janssens, AJA Raaijmakers… - American Journal …, 2024 - journals.physiology.org
The impaired ability of the heart to relax and stretch to accommodate venous return is
generally understood to represent a state of “diastolic dysfunction” and often described …

Gene regulation, alternative splicing, and posttranslational modification of troponin subunits in cardiac development and adaptation: a focused review

JJ Sheng, JP ** - Frontiers in physiology, 2014 - frontiersin.org
Troponin plays a central role in regulating the contraction and relaxation of vertebrate
striated muscles. This review focuses on the isoform gene regulation, alternative RNA …