The prolonged hyperpolarizing afterpotential in an invertebrate photoreceptor: wavelength and ionic dependence
作者： M.C. Cornwall , A.L.F. Gorman
DOI: 10.1016/0006-8993(82)90539-X
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摘要: A single electrode voltage clamp was used to examine the prolonged hyperpolarizing afterpotential (PHA) which accompanies photoconversion of a substantial fraction rhodopsin (lambda max = 500 nM) metarhodopsin 575 in distal photoreceptor cells retina bay scallop, Pecten irradians. The PHA appears result from persistent light-activated outward K+ current passing through same channels responsible for normal receptor potential these cells.
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