作者: R.H. Roberts , R.L. Barchi
DOI: 10.1016/S0021-9258(18)61653-9
关键词: Amino acid 、 Skeletal muscle 、 ATP synthase alpha/beta subunits 、 G alpha subunit 、 Sodium 、 Biochemistry 、 Molecular biology 、 Beta (finance) 、 Chemistry 、 Protein subunit 、 Gel electrophoresis
摘要: The alpha and beta subunits of the rabbit skeletal muscle sodium channel have been separated isolated preparatively under denaturing conditions. In this channel, subunit is not linked covalently to subunit. subjected amino acid carbohydrate analysis. Both are heavily glycosylated (alpha = 26.5%, 29.7% by weight) with N-acetylneuraminic N-acetylhexosamines representing predominant monosaccharides in each. Enzymatic deglycosylation neuraminidase endoglycosidase F yielded single core peptides approximately 209 kDa for 26.5 Based on known composition, molecular masses are, therefore, 285 37.5 beta, respectively. Using subunits, we calibrated our protein-labeling system dodecyl sulfate-polyacrylamide gel electrophoresis determined stoichiometry channel; native preparation, molar ratio alpha:beta 1 : 1.