Titratable Lysine: pH Slider
Drag the pH slider from 0 to 14 and watch each ionizable group on lysine protonate/deprotonate as pH crosses its pKa.
pH 7.0
alpha-COOH
alpha-NH3
epsilon-NH3
Calpha
alpha-COOH (pKa 2.2)
-
alpha-NH3+ (pKa 9.0)
-
epsilon-NH3+ (pKa 10.5)
-
Net charge: 0