Results 21 to 30 of about 800,175 (138)

A change in configuration of the calmodulin-KCNQ channel complex underlies Ca2+-dependent modulation of KCNQ channel activity. [PDF]

open access: yesPLoS ONE, 2013
All subtypes of KCNQ channel subunits (KCNQ1-5) require calmodulin as a co-factor for functional channels. It has been demonstrated that calmodulin plays a critical role in KCNQ channel trafficking as well as calcium-mediated current modulation. However,
Anastasia Kosenko, Naoto Hoshi
doaj   +1 more source

Polarized axonal surface expression of neuronal KCNQ potassium channels is regulated by calmodulin interaction with KCNQ2 subunit. [PDF]

open access: yesPLoS ONE, 2014
KCNQ potassium channels composed of KCNQ2 and KCNQ3 subunits give rise to the M-current, a slow-activating and non-inactivating voltage-dependent potassium current that limits repetitive firing of action potentials.
John P Cavaretta   +5 more
doaj   +1 more source

Protein arginine methylation facilitates KCNQ channel-PIP2 interaction leading to seizure suppression

open access: yeseLife, 2016
KCNQ channels are critical determinants of neuronal excitability, thus emerging as a novel target of anti-epileptic drugs. To date, the mechanisms of KCNQ channel modulation have been mostly characterized to be inhibitory via Gq-coupled receptors, Ca2 ...
Hyun-Ji Kim   +21 more
doaj   +1 more source

KCNQ Channels

open access: yes, 2023
KCNQ channels, also known as Kv7 channels, are a diverse group of K+ channels that exhibit a wide variety of properties and perform various physiological functions in the body. This family comprises five members, Kv7.1-7.5. These channels exhibit unusual
Tzingounis, Anastasios V.   +1 more
core   +1 more source

Role of KCNQ potassium channels in stress-induced deficit of working memory

open access: yesNeurobiology of Stress, 2019
The prefrontal cortex (PFC) mediates higher cognition but is impaired by stress exposure when high levels of catecholamines activate calcium-cAMP-protein kinase A (PKA) signaling. The current study examined whether stress and increased cAMP-PKA signaling
Amy F.T. Arnsten   +10 more
doaj   +1 more source

Age-dependent electrical and morphological remodeling of the Drosophila heart caused by hERG/seizure mutations. [PDF]

open access: yesPLoS Genetics, 2017
Understanding the cellular-molecular substrates of heart disease is key to the development of cardiac specific therapies and to the prevention of off-target effects by non-cardiac targeted drugs.
Karen Ocorr   +7 more
doaj   +1 more source

Kv7 and Kv11 channels in myometrial regulation. [PDF]

open access: yes, 2013
Ion channels play a key role in defining myometrial contractility. Modulation of ion channel populations is proposed to underpin gestational changes in uterine contractility associated with the transition from uterine quiescence to active labour.
Tribe, Rachel M; id_orcid   +5 more
core   +1 more source

Rapid activity-dependent modulation of the intrinsic excitability through up-regulation of KCNQ/Kv7 channel function in neonatal spinal motoneurons. [PDF]

open access: yesPLoS ONE, 2018
Activity-dependent changes in the properties of the motor system underlie the necessary adjustments in its responsiveness on the basis of the environmental and developmental demands of the organism.
Joseph Lombardo   +2 more
doaj   +1 more source

KV7 Channel Expression and Function Within Rat Mesenteric Endothelial Cells

open access: yesFrontiers in Physiology, 2020
Background and Purpose: Arterial diameter is dictated by the contractile state of the vascular smooth muscle cells (VSMCs), which is modulated by direct and indirect inputs from endothelial cells (ECs).
Samuel N. Baldwin   +4 more
doaj   +1 more source

The expression and function of KCNQ potassium channels in human chorionic plate arteries from women with normal pregnancies and pre-eclampsia. [PDF]

open access: yesPLoS ONE, 2018
Pre-eclampsia is associated with altered maternal and placental vascular reactivity. Kv7 channels (encoded by KCNQ 1-5 genes) are a potential contributor to the regulation of vascular tone in CPAs (chorionic plate arteries) during normal pregnancy.
Xiaohong Wei   +5 more
doaj   +1 more source

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