Difference between revisions of "Ambiguous nucleotide"

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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.
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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.  
  
*Nucleotide Code
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*Nucleotide Code  
*Adenosine A
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*Adenosine   A  
*Cytidine C
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*Cytidine C  
*Guanine G
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*Guanine G  
*Thymidine T
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*Thymidine T  
*Uridine (if 'Alphabet' set to 'RNA') U
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*Uridine (if 'Alphabet' set to 'RNA') U  
*Purine (A or G) R
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*Purine (A or G) R  
*Pyrimidine (T or C) Y
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*Pyrimidine (T or C) Y  
*Keto (G or T) K
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*Keto (G or T) K  
*Amino (A or C) M
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*Amino (A or C) M  
*Strong interaction (3 H bonds) (G or C) S
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*Strong interaction (3 H bonds) (G or C) S  
*Weak interaction (2 H bonds) (A or T) W
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*Weak interaction (2 H bonds) (A or T) W  
*Not A (C or G or T) B
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*Not A (C or G or T) B  
*Not C (A or G or T) D
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*Not C (A or G or T) D  
*Not G (A or C or T) H
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*Not G (A or C or T) H  
*Not T or U (A or C or G) V
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*Not T or U (A or C or G) V
'*''Any nucleotide (A or C or G or T or U) N'''
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*'''Any nucleotide (A or C or G or T or U) N'''

Revision as of 17:05, 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.

  • Nucleotide Code
  • Adenosine A
  • Cytidine C
  • Guanine G
  • Thymidine T
  • Uridine (if 'Alphabet' set to 'RNA') U
  • 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
  • Any nucleotide (A or C or G or T or U) N