Question

Draw the R group of (a) alanine; (b) histidine; (c) methionine.

Short answer

1. As a result, alanine's side chain is CH3.

2. As a result, histidine's side chain is,

3. As a result, methionine's side chain is,

Step-by-step solution

Step 1:(a) R group of alanine

A carboxylic acid having a protonated amino group on the alpha carbon is known as an amino acid.

An amino acid's general structure is as follows:

The only difference between amino acids is the substituent linked to the alpha carbon.

Alaninehas the following structure:

As a result, alanine's side chain is CH3.

Step2:(b) R group of histidine

Histidine is a very important amino acid. Histidine has the following structure:

As a result, histidine'sside chain is,

Step3:(c) R group of methionine

An important amino acid is a methionine. Methionine has the following structure:

As a result, methionine'sside chain is,

Side chain of methionine