Results 101 to 110 of about 1,575,123 (299)

Proteolytic maturation of α2δ represents a checkpoint for activation and neuronal trafficking of latent calcium channels

open access: yeseLife, 2016
The auxiliary α2δ subunits of voltage-gated calcium channels are extracellular membrane-associated proteins, which are post-translationally cleaved into disulfide-linked polypeptides α2 and δ.
Ivan Kadurin   +11 more
doaj   +1 more source

Hydrostatic pressure activates HIF‐1α via β‐catenin to promote stemness in breast cancer cells

open access: yesFEBS Open Bio, EarlyView.
To mimic the elevated intestinal fluid pressure in breast cancers, we loaded human breast cancer cells (MCF‐7, MDA‐MB‐453, and BT‐474) to 50 mmHg hydrostatic pressure. Hydrostatic pressure exposure upregulated HIF‐1α and induced stemness in MCF‐7 and BT‐474 cells.
Da Zhai   +8 more
wiley   +1 more source

Electrophysiological characterization of activation state-dependent Cav2 channel antagonist TROX-1 in spinal nerve injured rats. [PDF]

open access: yes, 2015
Prialt, a synthetic version of Cav2.2 antagonist ω-conotoxin MVIIA derived from Conus magus, is the first clinically approved voltage-gated calcium channel blocker for refractory chronic pain.
Schiene, K.   +17 more
core   +1 more source

Self-organized enhancement of conductivity in biological ion channels [PDF]

open access: yes, 2013
We discuss an example of self-organization in a biological system. It arises from long-range ion–ion interactions, and it leads us to propose a new kind of enhanced conduction in ion channels.
Kaufman, Igor   +9 more
core   +3 more sources

Guiding AlphaFold to predict how Munc13‐1 opens Syntaxin‐1

open access: yesFEBS Open Bio, EarlyView.
The syntaxin‐1 Habc‐domain (orange), linker (pink) and SNARE motif (yellow) form a closed conformation that binds to Munc18‐1 (violet) and is opened by the Munc13‐1 MUN domain (cyan) to form the SNARE complex that triggers neurotransmitter release.
Madhurima Chattopadhyay   +2 more
wiley   +1 more source

The pharmacology of hSK1 Ca2+-activated K+ channels expressed in mammalian cell lines. [PDF]

open access: yes, 2000
The pharmacology of hSK1, a small conductance calcium-activated potassium channel, was studied in mammalian cell lines (HEK293 and COS-7). In these cell types, hSK1 forms an apamin-sensitive channel with an IC(50) for apamin of 8 nM in HEK293 cells and ...
Shah, M, Haylett, DG
core  

Characterisation of voltage-gated calcium channels and detection of their autoantibodies [PDF]

open access: yes, 1991
The Lambert-Eaton myasthenic syndrome (LEMS) is an autoimmune disorder of impaired neuromuscular transmission. It is associated with small cell lung carcinoma (SCLC) in 60% of patients.
Leys, Katherine S., Leys, K.S
core   +1 more source

T-type calcium channels functionally interact with spectrin (α/β) and ankyrin B

open access: yesMolecular Brain, 2018
This study describes the functional interaction between the Cav3.1 and Cav3.2 T-type calcium channels and cytoskeletal spectrin (α/β) and ankyrin B proteins.
Agustin Garcia-Caballero   +10 more
doaj   +1 more source

Evaluating the involvement of autolysosomes in the nuclear translocation of fluorescent proteins

open access: yesFEBS Open Bio, EarlyView.
Endogenously expressed fluorescent proteins can be degraded by autophagy and transported to cell nuclei via the nuclear pore complex. But in some cell lines, for example, HeLa cells which are positive for immunoreactivity of a receptor ligand, such as UCN I, in cell nuclei, fusion of autolysosome with the nuclear envelope is involved in the nuclear ...
Keiichi Ikeda
wiley   +1 more source

Intrinsic calcium resonance and its modulation: insights from computational modeling

open access: yesFrontiers in Computational Neuroscience
Hippocampal neurons generate membrane potential resonance due to specific voltage-gated ion channels, known as resonating conductances, which play crucial physiological roles.
Rahul Kumar Rathour, Hanoch Kaphzan
doaj   +1 more source

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