The skeletal structures of the two amino acids, glycine and lysine, are given below along with the values of the relevant acid dissociation constants (pKa).

Question

(b) Calculate the pI (isoelectric point) of the dipeptide, Lys-Gly, assuming that there is negligible shift in the values of acid dissociation constants from the values of the constituent amino acids.

answer = 9.985

Answer 1

what's the answer to part a ??

Answer 2

Where's part a) question?

Answer 3

haven't done it yet..am struggling with it..need help...

Answer 4

pKa+log10(10^2)= 2.35+2= 4.35

Answer 5

Thank you, bonjo!

Answer 6

At site 4, name the sidechain interaction.

Hydrophobic interactions
Dipole-dipole interactions
Hydrogen bonds
Ionic bonds
Covalent bonds