Asked by bob
Draw the possible dipeptide, where −NH2 group of serine is free, formed by the condensation reaction between serine and lysine.
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The dipeptide formed by the condensation reaction between serine and lysine is Serine-Lysine or Ser-Lys. The chemical structure is:
HOOC-CH(NH2)-CH2-OH + H2N-(CH2)4-CH(NH2)-COOH → HOOC-CH(NH-CH2-CH2-NH-C-(CH2)4-CH(NH2)-COOH + H2O
In simpler terms, the carboxyl group of serine (HOOC) combines with the amine group of lysine (H2N) with the loss of a water molecule, forming a peptide bond (-CO-NH-). The resulting dipeptide has the amino acid sequence Ser-Lys, where the −NH2 group of serine remains free.
HOOC-CH(NH2)-CH2-OH + H2N-(CH2)4-CH(NH2)-COOH → HOOC-CH(NH-CH2-CH2-NH-C-(CH2)4-CH(NH2)-COOH + H2O
In simpler terms, the carboxyl group of serine (HOOC) combines with the amine group of lysine (H2N) with the loss of a water molecule, forming a peptide bond (-CO-NH-). The resulting dipeptide has the amino acid sequence Ser-Lys, where the −NH2 group of serine remains free.