Abstract:
:The solubilized [3H]ryanodine receptor from cardiac sarcoplasmic reticulum was centrifuged through linear sucrose gradients. A single peak of radioactivity with apparent sedimentation coefficient of approximately 30S specifically comigrated with a high molecular weight protein of apparent relative molecular mass approximately 400,000. Incorporation of the ryanodine receptor into lipid bilayers induced single Ca2+ channel currents with conductance and kinetic behavior almost identical to that of native cardiac Ca2+ release channels. These results suggest that the cardiac ryanodine receptor comprises the Ca2+ release channel involved in excitation-contraction coupling in cardiac muscle.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Lai FA,Anderson K,Rousseau E,Liu QY,Meissner Gdoi
10.1016/0006-291x(88)90613-4subject
Has Abstractpub_date
1988-02-29 00:00:00pages
441-9issue
1eissn
0006-291Xissn
1090-2104pii
0006-291X(88)90613-4journal_volume
151pub_type
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