منابع مشابه
BK Channel News
The large conductance Ca 2 -activated K channel (BK Ca ) is well positioned to assume diverse physiological functions because it is ubiquitously expressed in many cell types. Some of the functions recently proposed for this channel offer unexpected surprises, however, such as a role in innate immunity in neutrophil leukocytes (Ahluwalia et al., 2004), recognition as a heme-binding protein (Tang...
متن کاملEnhancement Effects of Martentoxin on Glioma BK Channel and BK Channel (α+β1) Subtypes
BACKGROUND BK channels are usually activated by membrane depolarization and cytoplasmic Ca(2+). Especially,the activity of BK channel (α+β4) can be modulated by martentoxin, a 37 residues peptide, with Ca(2+)-dependent manner. gBK channel (glioma BK channel) and BK channel (α+β1) possessed higher Ca(2+) sensitivity than other known BK channel subtypes. METHODOLOGY AND PRINCIPAL FINDINGS The p...
متن کاملBK channel activation: structural and functional insights.
The voltage- and Ca(2+)-activated K(+) (BK) channels are involved in the regulation of neurotransmitter release and neuronal excitability. Structurally, BK channels are homologous to voltage- and ligand-gated K(+) channels, having a voltage sensor and pore as the membrane-spanning domain and a cytosolic domain containing metal binding sites. Recently published electron cryomicroscopy (cryo-EM) ...
متن کاملSingle-channel kinetics of BK (Slo1) channels
Single-channel kinetics has proven a powerful tool to reveal information about the gating mechanisms that control the opening and closing of ion channels. This introductory review focuses on the gating of large conductance Ca(2+)- and voltage-activated K(+) (BK or Slo1) channels at the single-channel level. It starts with single-channel current records and progresses to presentation and analysi...
متن کاملBK channel activators and their therapeutic perspectives
The large conductance calcium- and voltage-activated K(+) channel (KCa1.1, BK, MaxiK) is ubiquitously expressed in the body, and holds the ability to integrate changes in intracellular calcium and membrane potential. This makes the BK channel an important negative feedback system linking increases in intracellular calcium to outward hyperpolarizing potassium currents. Consequently, the channel ...
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ژورنال
عنوان ژورنال: Circulation Research
سال: 2003
ISSN: 0009-7330,1524-4571
DOI: 10.1161/01.res.0000103309.55054.3e