Chapter 4: Q21P. (page 95)
A sample of the amino acid tyrosine is barely soluble in water. Would a polypeptide containing only Tyr residues, poly(Tyr), be more or less soluble, assuming the total number of Tyr groups remains constant?
The polypeptide containing only Tyr residues, poly (Tyr), is less soluble in water.
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Glutamate, a 5-carbon amino acid, is the precursor of three otheramino acids that contain a 5-carbon chain. Identify these amino acids.
Cover the labels in Figs. 4-14 and 4-15 and identify each parent amino acid and the type of chemical modification that has occurred.
Describe how each of the amino acid modifications shown in Fig. 4-14 would affect theof a peptide containing that modified amino acid residue.
Draw the structure of the dipeptide ฮฒ-alanylhistidine, also known as carnosine.
Identify all the chiral carbons in the amino acids shown in Table 4-1.
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