Results 21 to 30 of about 57,429 (242)

Outward Rectification of Voltage-Gated K+ Channels Evolved at Least Twice in Life History. [PDF]

PLoS ONE, 2015
Voltage-gated potassium (K+) channels are present in all living systems. Despite high structural similarities in the transmembrane domains (TMD), this K+ channel type segregates into at least two main functional categories-hyperpolarization-activated ...
Janin Riedelsberger, Ingo Dreyer, Wendy Gonzalez   +2 more
doaj   +1 more source

Kv2.1 voltage‐gated potassium channels in developmental perspective [PDF]

Developmental Dynamics, 2019
AbstractKv2.1 voltage‐gated potassium channels consist of two types of α‐subunits: (a) electrically‐active Kcnb1 α‐subunits and (b) silent or modulatory α‐subunits plus β‐subunits that, similar to silent α‐subunits, also regulate electrically‐active subunits. Voltage‐gated potassium channels were traditionally viewed, mainly by electrophysiologists, as
Justyna Jędrychowska, Vladimir Korzh
openaire   +2 more sources

Role of potassium conductance in mechanisms of exrtacellular atp impact on the contractive activity of vascular smooth muscle cells

Бюллетень сибирской медицины, 2017
The purpose of this work is to study the influence of extracellular ATP (adenosine-3-phosphate), which is an activator of purinergic receptors, on contractive activity of rat aortic ring segments precontracted by α1-adrenoreceptors activation with ...
S. N. Orlov, L. V. Smagliy, S. V. Gusakova, V. S. Rydchenko, Yu. G. Birulina, A. N. Baikov, V. N. Vasiliyev, G. A. Sukhanova, T. S. Fedorova, T. V. Lasukova   +9 more
doaj   +1 more source

Mechanisms of Activation of Voltage-Gated Potassium Channels [PDF]

Acta Naturae, 2014
Voltage-gated potassium ion channels (Kv) play an important role in a variety of cellular processes, including the functioning of excitable cells, regulation of apoptosis, cell growth and differentiation, the release of neurotransmitters and hormones, maintenance of cardiac activity, etc.
GRIZEL A.V., GLUKHOV G.S., SOKOLOVA O.S.
openaire   +4 more sources

Behavior of ion channels controlled by electric potential difference and of Toll-type receptors in neuropathic pain pathophysiology

Revista Dor
BACKGROUND AND OBJECTIVES: Neuropathic pain is a severe and refractory medical condition, for which only partially effective treatments are currently available.
André Prato Schmidt, Sérgio Renato Guimarães Schmidt   +1 more
doaj   +1 more source

Two-stage electro–mechanical coupling of a KV channel in voltage-dependent activation

Nature Communications, 2020
In voltage-gated potassium (KV) channels, the voltage-sensing domain (VSD) undergoes activation states to trigger pore opening via electro–mechanical (E–M) coupling. Here authors show that KV7.1 undergoes a two-stage E–M coupling mechanism during voltage-
Panpan Hou, Po Wei Kang, Audrey Deyawe Kongmeneck, Nien-Du Yang, Yongfeng Liu, Jingyi Shi, Xianjin Xu, Kelli McFarland White, Mark A. Zaydman, Marina A. Kasimova, Guiscard Seebohm, Ling Zhong, Xiaoqin Zou, Mounir Tarek, Jianmin Cui   +14 more
doaj   +1 more source

Studies of Conorfamide-Sr3 on Human Voltage-Gated Kv1 Potassium Channel Subtypes

Marine Drugs, 2020
Recently, Conorfamide-Sr3 (CNF-Sr3) was isolated from the venom of Conus spurius and was demonstrated to have an inhibitory concentration-dependent effect on the Shaker K+ channel.
Estuardo López-Vera, Luis Martínez-Hernández, Manuel B. Aguilar, Elisa Carrillo, Joanna Gajewiak   +4 more
doaj   +1 more source

C-terminal β9-strand of the cyclic nucleotide-binding homology domain stabilizes activated states of Kv11.1 channels. [PDF]

PLoS ONE, 2013
Kv11.1 potassium channels are important for regulation of the normal rhythm of the heartbeat. Reduced activity of Kv11.1 channels causes long QT syndrome type 2, a disorder that increases the risk of cardiac arrhythmias and sudden cardiac arrest.
Chai Ann Ng, Ying Ke, Matthew D Perry, Peter S Tan, Adam P Hill, Jamie I Vandenberg   +5 more
doaj   +1 more source

Synthetic ShK-like Peptide from the Jellyfish Nemopilema nomurai Has Human Voltage-Gated Potassium-Channel-Blocking Activity

Marine Drugs
We identified a new human voltage-gated potassium channel blocker, NnK-1, in the jellyfish Nemopilema nomurai based on its genomic information. The gene sequence encoding NnK-1 contains 5408 base pairs, with five introns and six exons.
Ye-Ji Kim, Yejin Jo, Seung Eun Lee, Jungeun Kim, Jae-Pil Choi, Nayoung Lee, Hyokyoung Won, Dong Ho Woo, Seungshic Yum   +8 more
doaj   +1 more source

Predicting the functional effects of voltage-gated potassium channel missense variants with multi-task learning

EBioMedicine, 2022
Summary: Background: Variants in genes encoding voltage-gated potassium channels are associated with a broad spectrum of neurological diseases including epilepsy, ataxia, and intellectual disability.
Christian Malte Boßelmann, Ulrike B.S. Hedrich, Peter Müller, Lukas Sonnenberg, Shridhar Parthasarathy, Ingo Helbig, Holger Lerche, Nico Pfeifer   +7 more
doaj   +1 more source