In an oligopeptide named Alanylglycylphenylalanylisoleucine, the number of hybridised carbons is .

Question

In an oligopeptide named Alanylglycylphenylalanylisoleucine, the number of  hybridised carbons is  .

Canvas Classes · Accepted Answer

Oligopeptide: Ala–Gly–Phe–Ile (tetrapeptide)

carbons are found in:
1. Peptide bonds (–CO–NH–): Each C=O in a peptide bond is sp²
2. Carboxyl group (C-terminus): –COOH carbon is sp²
3. Aromatic ring (Phe): 6 carbons in benzene ring are sp²

Counting sp² carbons:

Peptide bonds: Ala–Gly, Gly–Phe, Phe–Ile = 3 peptide bond carbons (C=O) → 3 sp²

C-terminus carboxyl: –COOH of Ile → 1 sp²

Phenylalanine benzene ring: 6 aromatic carbons → 6 sp²

Total sp² carbons = 3 + 1 + 6 = 10

Note: The N-terminu

More questions from Biomolecules