TiCo [IUPAC nucleotide symbols]

SymbolDescription
A Adenine
C Cytosine
G Guanine
T Thymine
U Uracil
R Purine A or G
Y Pyrimidine C or T (U)
M Amino A or C
K Keto G or T (U)
S C or G strong (3 H bonds)
W A or T (U) weak (2 H bonds)
B Not A
D Not C
H Not G
V Not T (U)
N Any nucleotid

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