Second Position
T C A G
F
i
r
s
t

P
o
s
i
t
i
o
n
T phenylalanine (phe, F) serine (ser, S) tyrosine (tyr, Y) cysteine (cys, C) T T
h
i
r
d

P
o
s
i
t
i
o
n
C
leucine (leu, L) stop stop A
tryptophan (trp, W) G
C leucine (leu, L) proline (pro, P) histidine (his, H) arginine (arg, R) T
C
glutamine (gln, Q) A
G
A isoleucine (ile, I) threonine (thr, T) asparagine (asn, N) serine (ser, S) T
C
lysine (lys, K) arginine (arg, R) A
methionine (met, M) G
G valine (val, V) alanine (ala, A) aspartic acid (asp, D) glycine (gly, G) T
C
glutamic acid (glu, E) A
G