Ambiguous nucleotide
From CoGepedia
Ambiguous nucleotides are used when the true nucleotide is unknown. The most popular one seen with high-throughput genome sequences is "N" which represents any possible nucleotide.
Ambiguous
- Any nucleotide (A or C or G or T or U) N
- Purine (A or G) R
- Pyrimidine (T or C) Y
- Keto (G or T) K
- Amino (A or C) M
- Strong interaction (3 H bonds) (G or C) S
- Weak interaction (2 H bonds) (A or T) W
- Not A (C or G or T) B
- Not C (A or G or T) D
- Not G (A or C or T) H
- Not T or U (A or C or G) V
Not ambiguous
- Adenosine A
- Cytidine C
- Guanine G
- Thymidine T
- Uridine (if 'Alphabet' set to 'RNA') U
