115 Nucleotides shall be represented using the symbols set out in the table to this section.
Symbol | Meaning | Origin of designation |
---|---|---|
A | A | Adenine |
G | G | Guanine |
C | C | Cytosine |
T | T | Thymine |
U | U | Uracil |
R | G or A | puRine |
Y | T/U or C | pYrimidine |
M | A or C | aMino |
K | G or T/U | Keto |
S | G or C | Strong interactions 3H-bonds |
W | A or T/U | Weak interactions 2H-bonds |
B | G or C or T/U | not A |
D | A or G or T/U | not C |
H | A or C or T/U | not G |
V | A or G or C | not T, not U |
N | (A or G or C or T/U) or (unknown or other) | aNy |
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