What qualitative test can be used for proteins having cysteine and cys – InterviewSolution

InterviewSolution

1.	What qualitative test can be used for proteins having cysteine and cystine aminoacids ?
Answer» The nitroprusside test is specific for cysteine, the only amino ACID containing sulfhydryl GROUP (-SH). This group REACTS with nitroprusside in the presence of excess AMMONIA. Apply this test cysteine, cystine and methionin.

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