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Chapter 21: Q37P (page 1014)

Write the mechanism for the reaction of a cysteine side chain with iodoacetic acid.

Short Answer

Expert verified

The answer is:

Mechanism

Step by step solution

01

Step-by-Step Solution Step 1: Cysteine

There are a large number of amino acids in nature. Out of these, some are essential, and some are non-essential amino acids. Cysteine is an amino acid containing a sulfur atom and is semi essential amino acid.

02

Explanation

The mechanism for the reaction of the cysteine side chain with iodoacetic acid is given below.

Mechanism

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Most popular questions from this chapter

Draw the resonance contributors of the peptide bond in the less stable configuration.

A mixture of amino acids that do not separate sufficiently when a single technique is used can often be separated by two-dimensional chromatography.In this technique, the mixture of amino acids is applied to a piece of filter paper and separated by chromatographic techniques. The paper is then rotated90°,and the amino acids are further separated by electrophoresis, producing a type of chromatogram called a fingerprint.Identify the spots in the fingerprint obtainedfrom a mixture of Ser, Glu, Leu, His, Met, and Thr.

What dipeptides would be formed by heating a mixture of valine and N- protected leucine?

a. How many different octapeptides can be made from the 20 naturally occurring amino acids?

b. How many different proteins containing 100 amino acids can be made from the 20 naturally occurring amino acids?

Question: In determining the primary structure of insulin, what would lead you to conclude that insulin had more than one polypeptide chain?
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