Results 41 to 50 of about 2,749,588 (276)

Anionic Phospholipids Activate ATP-sensitive Potassium Channels [PDF]

Journal of Biological Chemistry, 1997
The ATP-sensitive potassium channel (KATP) controls insulin release in pancreatic beta-cells and also modulates important functions in other cell types. In this study we report that anionic phospholipids activated KATP in pancreatic beta-cells, cardiac myocytes, skeletal muscle cells, and a cloned KATP composed of two subunits (SUR/Kir6.
Z, Fan, J C, Makielski
openaire   +2 more sources

Immunolocalization of KATP channel subunits in mouse and rat cardiac myocytes and the coronary vasculature. [PDF]

, 2005
BACKGROUND: Electrophysiological data suggest that cardiac KATP channels consist of Kir6.2 and SUR2A subunits, but the distribution of these (and other KATP channel subunits) is poorly defined.
Artman, M, Alison Morrissey, Tomoe Y Nakamura, Yoshida, H, Parachuru, L, Nakamura, TY, Coetzee, WA, Lavanya Parachuru, Hidetada Yoshida, Andrew Tinker, Lanning, J, Gwendolyn Lopez, Morrissey, A, Michael Artman, William A Coetzee, Lopez, G, Tong, X, Dhar Chowdhury, P, XiaoYong Tong, Han, S, Jonathan P Giblin, Sandra Han, Giblin, JP, Erika Rosner, Jennifer Lanning, Piyali Dhar Chowdhury, Tinker, A, Rosner, E   +27 more
core   +1 more source

Ion Channel Dysfunction in Astrocytes in Neurodegenerative Diseases

Frontiers in Physiology, 2022
Astrocytes play an important role in the central nervous system (CNS). Ion channels in these cells not only function in ion transport, and maintain water/ion metabolism homeostasis, but also participate in physiological processes of neurons and glial ...
Sijian Wang, Biyao Wang, Dehao Shang, Kaige Zhang, Xu Yan, Xinwen Zhang   +5 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

K(ATP) channel gene expression is induced by urocortin and mediates its cardioprotective effect [PDF]

, 2002
Background— Urocortin is a novel cardioprotective agent that can protect cardiac myocytes from the damaging effects of ischemia/reperfusion both in culture and in the intact heart and is effective when given at reperfusion.
Hubank, M, Stephanou, A., Chanalaris, A., Townsend, P. A., Lawrence, K. M., Townsend, P A, Lawrence, KM, Knight, RA, Ferrari, R., Chanalaris, A, Scarabelli, T., Scarabelli, T, Hubank, M., Pasini, E., Townsend, PA, Latchman, D S, Tinker, A., Latchman, D. S., Knight, R A, Pasini, E, Comini, L, Lawrence, K M, Latchman, DS, Tinker, A, Ferrari, R, Comini, L., Knight, R. A., Stephanou, A   +27 more
core   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

FEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux, Christian Lévêque, Fodil Azzaz, Marion Sangiardi, Sarosh R Irani, Michael Seagar, Jacques Fantini, Oussama El Far   +7 more
wiley   +1 more source

Unraveling the epigenetic code in cancer cell–tumor microenvironment crosstalk

Molecular Oncology, EarlyView.
Epigenetic regulation is a key driver of cancer development and progression. Diverse epigenetic alterations in cancer cells and components of the tumor microenvironment (TME) orchestrate their communication through multiple mechanisms. We discuss how the epigenetic code coordinates bidirectional cancer cell–TME crosstalk to promote cancer progression ...
Ji Hoon Park, Mi‐Young Kim
wiley   +1 more source

Potassium Channels as Therapeutic Targets in Pulmonary Arterial Hypertension

Biomolecules, 2022
Pulmonary arterial hypertension (PAH) is a devastating disease with high morbidity and mortality. Deleterious remodeling in the pulmonary arterial system leads to irreversible arterial constriction and elevated pulmonary arterial pressures, right heart ...
Gabriel Redel-Traub, Kevin J. Sampson, Robert S. Kass, Michael S. Bohnen   +3 more
doaj   +1 more source

Potassium channels in prostate and colonic cancer [PDF]

, 2007
Large conductance Ca2+-activated K+ channels in human prostate cancer The KCNMA1 gene encoding the alpha-subunit of BK channels is amplified and BK channel expression is enhanced in late-stage, metastatic and hormone-refractory human prostate cancer ...
Ousingsawat, Jiraporn
core   +1 more source