Tryptic and cyanogen bromide peptides were isolated from reduced and S-carboxymethylated bovine erythrocyte superoxide dismutase, and maleylated tryptic peptides were isolated from the individual cyanogen bromide fragments. Based upon end group analyses of the intact protein and the yields and partial sequence analyses of these peptides, a partial sequence of the enzyme was deduced. From these data it was concluded that the 2 subunits of bovine dismutase appear to be chemically identical. Each subunit is acetylated at the NH2 terminus, has lysine at the COOH terminus, and contains no tryptophan.
|Original language||English (US)|
|Number of pages||11|
|Journal||Journal of Biological Chemistry|
|Publication status||Published - Dec 1 1974|
ASJC Scopus subject areas
- Molecular Biology
- Cell Biology