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Table 2 IUPAC Alphabet (ΣIUPAC)

From: SMOTIF: efficient structured pattern and profile motif search

Symbol

A

C

G

T

U

R

Y

K

Bases

A

C

G

T

U

A,G

C,T

G,T

Symbol

M

S

W

B

D

H

V

N

Bases

A,C

G,C

A,T

C,G,T

A,G,T

A,C,T

A,C,G

A,C,G,T