Ambiguous nucleotide: Difference between revisions
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==Not ambiguous== | ==Not ambiguous== | ||
* | * '''A''' Adenosine | ||
* | * '''C''' Cytidine | ||
* | *'''G''' Guanine | ||
* | *'''T''' Thymidine | ||
*Uridine (if 'Alphabet' set to 'RNA') | *'''U''' Uridine (if 'Alphabet' set to 'RNA') | ||
Latest revision as of 23:09, 23 June 2011
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
- N Any nucleotide (A or C or G or T or U)
- R Purine (A or G)
- Y Pyrimidine (T or C)
- K Keto (G or T)
- M Amino (A or C)
- S Strong interaction (3 H bonds) (G or C)
- W Weak interaction (2 H bonds) (A or T)
- B Not A (C or G or T)
- D Not C (A or G or T)
- H Not G (A or C or T)
- V Not T or U (A or C or G)
Not ambiguous
- A Adenosine
- C Cytidine
- G Guanine
- T Thymidine
- U Uridine (if 'Alphabet' set to 'RNA')