Influence of the Length of the Alanine Spacer on the Acidic-Basic Properties of the Ac-Lys-(Ala)(n)-Lys-NH(2) Peptides (n = 0, 1, 2, …, 5)
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By using the potentiometric titration method, we have determined the pK(a) values of the two terminal lysine groups in six alanine-based peptides differing in the length of the alanine chain: Ac-Lys-Lys-NH(2) (KK), Ac-Lys-Ala-Lys-NH(2) (KAK), Ac-Lys-Ala-Ala-Ly... ...
