Leucine*
(H3C)2CH-CH2-
Leu
L
Name of the
Characteristic feature
Three letter
One letter
amino acids
of side chain, R
symbol
code
Table 10 2: Natural Amino Acids
10 2 1 Amino
Acids
R
CH
COOH
NH2
�-amino acid
(R = side chain)
       COOH
H2N
    H
         R
10