Ryanoid modification of the cardiac muscle ryanodine receptor channel results in relocation of the tetraethylammonium binding site

B Tanna, W Welch, L Ruest, JL Sutko… - The Journal of general …, 2001 - rupress.org
The interaction of ryanodine and derivatives of ryanodine with the high affinity binding site
on the ryanodine receptor (RyR) channel brings about a characteristic modification of …

Mg2+ activates the ryanodine receptor type 2 (RyR2) at intermediate Ca2+ concentrations

A Chugun, O Sato, H Takeshima… - American Journal of …, 2007 - journals.physiology.org
To clarify whether activity of the ryanodine receptor type 2 (RyR2) is reduced in the
sarcoplasmic reticulum (SR) of cardiac muscle, as is the case with the ryanodine receptor …

Identification of changes in the functional profile of the cardiac ryanodine receptor caused by the coupled gating phenomenon

J Gaburjakova, M Gaburjakova - Journal of membrane biology, 2010 - Springer
The objective of this work was to identify and further characterize potential changes in the
functional profile of the cardiac ryanodine receptor (RyR2) channel caused by the coupled …

An Overview of Ryanodine Receptor Structure and Function

R Sitsapesan, AJ Williams - The Structure And Function Of …, 1998 - World Scientific
Ryanodine receptors (RyR) are a class of Ca 2+-selective ion channels located in the
intracellular membrane systems (sarcoplasmic reticulum and endoplasmic reticulum) of …

Ryanodine receptors under the magnifying lens: Insights and limitations of cryo-electron microscopy and X-ray crystallography studies

Z Yuchi, F Van Petegem - Cell calcium, 2016 - Elsevier
Abstract Ryanodine Receptors (RyRs) are complex proteins embedded in the membranes of
the endoplasmic and sarcoplasmic reticulum. They dictate the release of one of the most …

P373 Two key regions of the human cardiac ryanodine receptor calcium release channel modulate its gating properties in a dual manner

C Viero, J Euden, SA Mason, MK Seidel… - Cardiovascular …, 2014 - academic.oup.com
Abstract Ryanodine receptors type 2 (RyR2) regulate excitation-contraction coupling. Their
dysfunction leads to pathological states, such as arrhythmia, heart failure and sudden death …

[HTML][HTML] A Ca2+-binding domain in RyR1 that interacts with the calmodulin binding site and modulates channel activity

L Xiong, JZ Zhang, R He, SL Hamilton - Biophysical journal, 2006 - cell.com
A fragment of RyR1 (amino acids 4064–4210) is predicted to fold to at least one lobe of
calmodulin and to bind Ca 2+. This fragment of RyR1 (R4064–4210) was subcloned …

The cardiac ryanodine receptor (RyR2) and its role in heart disease

Y Taur, WH Frishman - Cardiology in review, 2005 - journals.lww.com
The cardiac ryanodine receptor has become a subject of increasing interest as its role in the
etiology of cardiac disease is becoming more apparent. In this article, we review the current …

[HTML][HTML] Promiscuous attraction of ligands within the ATP binding site of RyR2 promotes diverse gating behaviour

C Lindsay, M Sitsapesan, WM Chan, E Venturi… - Scientific Reports, 2018 - nature.com
ATP is an essential constitutive regulator of cardiac ryanodine receptors (RyR2), enabling
small changes in cytosolic Ca2+ to trigger large changes in channel activity. With recent …

Two Regions of the Ryanodine Receptor Calcium Channel Are Involved in Ca2+-Dependent Inactivation

AC Gomez, N Yamaguchi - Biochemistry, 2014 - ACS Publications
Skeletal (RyR1) and cardiac muscle (RyR2) isoforms of ryanodine receptor calcium
channels are inhibited by millimollar Ca2+, but the affinity of RyR2 for inhibitory Ca2+ is∼ …