Alanine
– CH3
Ala
A
3 Valine*
(H3C)2CH-
Val
V
4 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