Q. 16.5 - An Introduction to General, Organic, and Biological Chemistry

Question

Draw the structure of each of the following amino acids at physiological pH:

a. glycine

h. T

c. glutamate

d. Phi

Step-by-Step Solution

Answer

Glycine, tyrosine (T), glutamic acid, and phenyl alanine have the following ionized forms:

(Part a)

(Part b)

(Part c)

(Part d)

(Part a) Step 1: Introduction.

Proteins are constructed from amino acids.. These contain one hydrogen atom, one amine group$\left(-{\mathrm{NH}}_2\right)$, one carboxylic acid group  $(-\mathrm{COOH})$ and one side chain (R group) attached to the central carbon atom. Proteins are made up of two amino acids linked together by peptide bonds. Depending on the structure, the R group can be polar, neutral, or charged..

(Part a) Step 1: Given data.

Draw the structure of glycine from the following amino acids at physiological pH:

(Part a) Step 3: Explanation.

(Part b) Step 4: Given data.

Draw the structure of T from the following amino acids at physiological pH:

(Part b) Step 5: Explanation.

(Part c) Step 6:Given data.

Draw the structure of glutamate  from the following amino acids at physiological pH:

(Part c) Step 7: Explanation.

(Part d) Step 8: Given data.

Draw the structure of Phi   from the following amino acids at physiological pH:

(Part d) Step 9 : Explanation.