The naturally occurring form of the amino acid cysteine ( 5.63) has the S configuration
Chapter 5, Problem 5.64(choose chapter or problem)
The naturally occurring form of the amino acid cysteine ( 5.63) has the S configuration at its chirality center. On treatment with a mild oxidizing agent, two cysteines join to give cystine, a disulfide. Assuming that the chirality center is not affected by the reaction, is cystine optically active? Explain. Cysteine 2 HSCH2CHCO2H NH2 HO2CCHCH2S NH2 SCH2CHCO2H NH2 Cystine
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