Examination of the amino acid composition of a newly isolated protein indicates the presence of 10 lysines, 5 arginines, and 4 methionines. When the protein is treated with cyanogen bromide, four peptides are obtained. When it is treated with trypsin, 16 peptides are obtained. What do these results suggest regarding the sequence of the protein

The protein has a lysine or arginine at it's C-terminal end.

Explanation:

Given isolated protein indicates the presence of 10 lysines, 5 arginines, and 4 methionines. So, sequence of the protein .                                    These results indicate that the sequence of proteins contains lysine or arginine at the end of the C-terminal. Because we have 15 sites that can be separated from trypsin and so it only causes 16 peptides.            

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