Name and draw the structure of the following amino acids: (a)
Provides the least steric hindrance (b) Positively charges at
physiological pH (c) Aromatic R group; contribute to maximum
absorbance at 280 nm wavelength (d) Only amino acid having an R
group with pKa around physiological pH (~7); important in active
site of proteins (e) The only amino acid with substituted α-amino
group; influences protein folding by forcing a bend in the chain
(f) Amino acid forms disulfide bonds