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Regulation of K+ flow by a ring of negative charges in the outer pore of BKCa channels. Part I: Aspartate 292 modulates K+ conduction by external surface charge effect.
Haug T, Sigg D, Ciani S, Toro L, Stefani E, Olcese R. Haug T, et al. Among authors: olcese r. J Gen Physiol. 2004 Aug;124(2):173-84. doi: 10.1085/jgp.200308949. J Gen Physiol. 2004. PMID: 15277578 Free PMC article.
The pore region of the majority of K+ channels contains the highly conserved GYGD sequence, known as the K+ channel signature sequence, where the GYG is critical for K+ selectivity (Heginbotham, L., T. Abramson, and R. MacKinnon. 1992. Science. 258:1152-1155). Exchanging t …
The pore region of the majority of K+ channels contains the highly conserved GYGD sequence, known as the K+ channel signature sequence, wher …
Regulation of K+ flow by a ring of negative charges in the outer pore of BKCa channels. Part II: Neutralization of aspartate 292 reduces long channel openings and gating current slow component.
Haug T, Olcese R, Toro L, Stefani E. Haug T, et al. Among authors: olcese r. J Gen Physiol. 2004 Aug;124(2):185-97. doi: 10.1085/jgp.200308950. J Gen Physiol. 2004. PMID: 15277579 Free PMC article.
Neutralization of the aspartate near the selectivity filter in the GYGD pore sequence (D292N) of the voltage- and Ca(2+)-activated K+ channel (MaxiK, BKCa) does not prevent conduction like the corresponding mutation in Shaker channel, but profoundly affects major biophysical prop …
Neutralization of the aspartate near the selectivity filter in the GYGD pore sequence (D292N) of the voltage- and Ca(2+)-activated K+ channe …
Modes of operation of the BKCa channel beta2 subunit.
Savalli N, Kondratiev A, de Quintana SB, Toro L, Olcese R. Savalli N, et al. Among authors: olcese r. J Gen Physiol. 2007 Jul;130(1):117-31. doi: 10.1085/jgp.200709803. J Gen Physiol. 2007. PMID: 17591990 Free PMC article.
123 results