Abstract:
:Action potentials of myotubes in culture prepared from 18-19 day -old mouse embryos have a contractile activity and action potentials that are followed by a long lasting after hyperpolarization (ahp) which is blocked by apamin. Myotubes prepared from embryos of mice with muscular dysgenesis (mdg/mdg) did not contract and had action potentials which were never followed by a.h.p.'s. Voltage-clamp experiments have shown that Na+ channel activity was identical in mutant and control muscles and that the activity of fast and slow Ca2+ channels was nearly absent in the mutant.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Romey G,Rieger F,Renaud JF,Pinçon-Raymond M,Lazdunski Mdoi
10.1016/0006-291x(86)90422-5subject
Has Abstractpub_date
1986-05-14 00:00:00pages
935-40issue
3eissn
0006-291Xissn
1090-2104pii
0006-291X(86)90422-5journal_volume
136pub_type
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