Calcium-release channels: structure and function of IP3 receptors and ryanodine receptors

KA Woll, F Van Petegem - Physiological Reviews, 2022 - journals.physiology.org
Ca2+-release channels are giant membrane proteins that control the release of Ca2+ from
the endoplasmic and sarcoplasmic reticulum. The two members, ryanodine receptors …

[HTML][HTML] Ryanodine receptor dysfunction in human disorders

A Kushnir, B Wajsberg, AR Marks - … et Biophysica Acta (BBA)-Molecular Cell …, 2018 - Elsevier
Regulation of intracellular calcium (Ca 2+) is critical in all cell types. The ryanodine receptor
(RyR), an intracellular Ca 2+ release channel located on the sarco/endoplasmic reticulum …

Cardiac ryanodine receptor distribution is dynamic and changed by auxiliary proteins and post-translational modification

P Asghari, DRL Scriven, M Ng, P Panwar, KC Chou… - Elife, 2020 - elifesciences.org
The effects of the immunophilins, FKBP12 and FKBP12. 6, and phosphorylation on type II
ryanodine receptor (RyR2) arrangement and function were examined using correlation …

Molecular, subcellular, and arrhythmogenic mechanisms in genetic RyR2 disease

ED Fowler, S Zissimopoulos - Biomolecules, 2022 - mdpi.com
The ryanodine receptor (RyR2) has a critical role in controlling Ca2+ release from the
sarcoplasmic reticulum (SR) throughout the cardiac cycle. RyR2 protein has multiple …

The sarcoplasmic reticulum and the evolution of the vertebrate heart

HA Shiels, GLJ Galli - Physiology, 2014 - journals.physiology.org
The sarcoplasmic reticulum (SR) is crucial for contraction and relaxation of the mammalian
cardiomyocyte, but its role in other vertebrate classes is equivocal. Recent evidence …

FK506 binding proteins: cellular regulators of intracellular Ca2+ signalling

D MacMillan - European journal of pharmacology, 2013 - Elsevier
In many cell types the intracellular Ca2+ store performs a central role in the regulation of the
cytosolic Ca2+ concentration ([Ca2+] c), the elevation of which triggers diverse and …

RyR2 regulates Cx43 hemichannel intracellular Ca2+-dependent activation in cardiomyocytes

A Lissoni, P Hulpiau, T Martins-Marques… - Cardiovascular …, 2021 - academic.oup.com
Aims Connexin-based gap junctions are crucial for electrical communication in the heart;
they are each composed of two docked hemichannels (HCs), supplied as unpaired …

FKBP12 binds to the cardiac ryanodine receptor with negative cooperativity: implications for heart muscle physiology in health and disease

SJ Richardson, CG Thekkedam… - … of the Royal …, 2023 - royalsocietypublishing.org
Cardiac ryanodine receptors (RyR2) release the Ca2+ from intracellular stores that is
essential for cardiac myocyte contraction. The ion channel opening is tightly regulated by …

IP3RPEP6, a novel peptide inhibitor of IP3 receptor channels that does not affect connexin‐43 hemichannels

S Tao, P Hulpiau, LE Wagner, K Witschas… - Acta …, 2024 - Wiley Online Library
Abstract Aim Inositol 1, 4, 5‐trisphosphate receptors (IP3Rs) are intracellular Ca2+‐release
channels with crucial roles in cell function. Current IP3R inhibitors suffer from off‐target …

Dantrolene inhibition of ryanodine channels (RyR2) in artificial lipid bilayers depends on FKBP12. 6

K Walweel, N Beard, DF van Helden… - Journal of General …, 2023 - rupress.org
Dantrolene is a neutral hydantoin that is clinically used as a skeletal muscle relaxant to
prevent overactivation of the skeletal muscle calcium release channel (RyR1) in response to …