Amino Acids
Leucine, Leu, L
Proline, Pro, P
Alanine, Ala, A
Valine, Val, V
Methionine, Met, M
Isoleucine, Ile, I
Tryptophan, Try, W
Phenylalanine, Phe, F
Glycine, Gly, G
Serine, Ser, S
Asparagine, Asn, N
Cystine, Cys, C
Glutamine, Glu, Q
Threonine, Thr, T
Tyrosine, Tyr, Y
Aspartic acid, Asp, D
Glutamic acid, Glu, E
Lysine, Lys, K
Arginine, Arg, R
HIstidine, His, H
Aspartic Acid pka (B-carboxyl)=
3.9 (-) charge at pH 7
Glutamic acid pka (y-carboxyl)=
4.1 (-) charge at pH 7
Histidine pka (imidazole)=
6.0 no charge at pH 7
Cysteine pka(sulfhydryl)=
8.4 no charge at pH 7
Tyrosine pka ( phenolic OH )
10.5 no charge at pH7
Lysine pka (E-amino)=
10.5 (+) charge at pH 7
Arginine pka (guanidino group )=
12.5 (+) charge at pH 7