... – 7582 . 10.1073/pnas.87.19.7579 Armstrong , D. and Eckert , R. ( 1987 ). Voltage-activated calcium channels that must be phosphorylated to respond to membrane depolarization . Proc. natn. Acad. Sci. U.S.A . 84 , 2518 – 2522 . 10.1073/pnas.84.8.2518 Byerly , L...

...Juan Bernal; Barbara E. Ehrlich ABSTRACT Voltage-dependent calcium channels play a critical role in many cell functions and in many cell types ranging from protozoa to vertebrates. We have shown previously that guanine nucleotides modulate the calcium action potential and the duration of backward...

...Juan Bernal; Anita Mcilveen Kelsey; Barbara E. Ehrlich ABSTRACT Behavioral and electrophysiological experiments were made to examine the hypothesis that G-proteins modulate the voltage-dependent calcium channel in the marine ciliate Paramecium calkinsi . It was found that guanosine-5’-O-(3...

... release could be prevented. neuromuscular junction calcium channels transmitter release Xenopus nerve-muscle culture The senior author (TPF) regrets that owing to unforeseen visa problems he was not able to take part, as he had intended, in the Batam Discussion Meeting on Synapse...

.... and Smith , S. J. ( 1989 ). Fingering the trigger for neurotransmitter secretion: studies on the calcium channels of squid giant presynaptic terminals . In Secretion and its Control (ed. G. S. Oxford and C. M. Armstrong ), pp. 203 – 223 . New York : Rockefeller University Press...

..., where V p is the pipette potential. All data are from cell-attached patches, and voltages are given as V m . 02 12 1989 © 1990 by Company of Biologists 1990 calcium channels non-voltage-gated snail heart cells Bolton (1979) and Weiss (1981) discussed...

.... & Pollard , H. B. ( 1988 ). Purification of human synexin calcium channel protein and structure of the human synexin gene . Proc. natn. Acad. Sci. U.S.A . (in press) . Creutz , C. E. ( 1981 ). Cis-Unsaturated fatty acids induce the fusion of chromaffin granules aggregated by synexin . J...

..., to investigate the behaviour of the local population of calcium channels. These channels are sensitive to the peptide toxin ω-conotoxin GV1A, derived from the venom of the marine snail Conus geographicus , but insensitive to dihydropyridine channel modulators. In the neurohypophysis of the mouse, it is possible...

... of voltagesensitive calcium channels along developing neurites: Their possible role in regulating neurite elongation . Devl Biol . 94 , 351 – 365 . 10.1016/0012-1606(82)90353-0 Armstrong , C. M. & Binstock , L. ( 1965 ). Anomalous rectification in the squid giant axon injected...

...H. Reuter; S. Kokubun; B. Prod’hom ABSTRACT Voltage-dependent calcium channels are widely distributed in excitable membranes and are involved in the regulation of many cellular functions. These channels can be modulated by neurotransmitters and drugs. There is one particular type of calcium channel...

.... Exposure of isolated bag cell neurones to activators of protein kinase C results in the enhancement of their action potentials through an increase in the amplitude of their voltage-dependent calcium current. This is caused by the unmasking of a previously inactive species of calcium channel in the plasma...