124 results found
    1. Structural Biology and Molecular Biophysics

    Proximal clustering between BK and CaV1.3 channels promotes functional coupling and BK channel activation at low voltage

    Oscar Vivas et al.
    Super-resolution imaging reveals a novel multi-channel arrangement that explains how big potassium (BK) channel activation closely tracks the opening of low-voltage-activated L-type calcium channels.
    1. Structural Biology and Molecular Biophysics

    BK channel inhibition by strong extracellular acidification

    Yu Zhou et al.
    Analysis of iconic and gating currents of wild type and mutated BK channels reveals a strong inhibition of this channel by extracellular acidification and elucidates the underlying mechanism that is potentially applicable to other voltage-dependent cation channels.
    1. Structural Biology and Molecular Biophysics

    Voltage-dependent dynamics of the BK channel cytosolic gating ring are coupled to the membrane-embedded voltage sensor

    Pablo Miranda et al.
    Allosteric modulation of BK channels, vital for the physiology of nerve, muscle and endocrine cells, is determined by direct coupling between gating ring RCK1 domains and the voltage sensor function.
    1. Neuroscience

    ERG-28 controls BK channel trafficking in the ER to regulate synaptic function and alcohol response in C. elegans

    Kelly H Oh et al.
    An endoplasmic reticulum membrane protein regulates synaptic transmission, alcohol sensitivity, and gene expression by controlling the trafficking of a calcium-activated potassium channel.
    1. Structural Biology and Molecular Biophysics

    Calcium-driven regulation of voltage-sensing domains in BK channels

    Yenisleidy Lorenzo-Ceballos et al.
    Gating currents analysis at different Ca2+ concentrations of BK channels reveals a strong allosteric coupling between Ca2+- and voltage-sensing modules via equivalent contributions exerted by the RCK1 and RCK2 Ca2+-sites.
    1. Structural Biology and Molecular Biophysics

    Aromatic interactions with membrane modulate human BK channel activation

    Mahdieh Yazdani et al.
    Computation and experiment together demonstrate that nonspecific membrane–protein interactions could regulate transmembrane protein function and suggest that covalent linkers can be an integral component of the sensing apparatus.
    1. Structural Biology and Molecular Biophysics

    Molecular structures of the human Slo1 K+ channel in complex with β4

    Xiao Tao, Roderick MacKinnon
    The structures of Slo1 in complex with b4 imply that the auxiliary beta subunits modulate the channel's gating properties through stabilizing ‘pre-existing’ conformations rather than creating new ones.
    1. Structural Biology and Molecular Biophysics

    Gating and selectivity mechanisms for the lysosomal K+ channel TMEM175

    SeCheol Oh et al.
    Structures of the non-canonical potassium channel TMEM175 in open and closed states reveal unique mechanisms for channel gating and the selective permeation of K+ ions.

Refine your results by:

Type
Research categories