From: SMOTIF: efficient structured pattern and profile motif search
Symbol
A
C
G
T
U
R
Y
K
Bases
A,G
C,T
G,T
M
S
W
B
D
H
V
N
A,C
G,C
A,T
C,G,T
A,G,T
A,C,T
A,C,G
A,C,G,T