Cu(II) and Ni(II) Interactions with the Terminally Blocked Hexapeptide Ac-Leu-Ala-His-Tyr-Asn-Lys-amide Model of Histone H2B (80–85)

Table 2

Stability and ionization constants of the peptide -LAHYNK-.

Overall protonation constants (log𝛽)^(a)
-LAHYNK-	HL	H2L	H3L	p𝐾His	p𝐾Tyr	p𝐾Tys
	10.53 (2)	20.05 (2)	26.28 (3)	6.23	9.52	10.53

^(a)𝛽 = [H_jL_k]/([H]^j [L]^k), standard deviations of the last digit are given in parenthesis.