Problem

The amino acid cysteine has the structure.(a) A second sulfur-containing amino acid called...

The amino acid cysteine has the structure.

(a) A second sulfur-containing amino acid called cystine (C6H12N2O4S2) is formed when cysteine undergoes biological oxidation. Suggest a reasonable structure for cystine.

(b) Another metabolic pathway converts cysteine to cysteine sulfinic acid (C3H7NO4S), then to cysteic acid (C3H7N05S). What are the structures of these two compounds?

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Solutions For Problems in Chapter 15

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