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Table 1 Nucleotide substitution matrix

From: Reconstruction of ancestral RNA sequences under multiple structural constraints

 

A

C

G

U

A

0

2

1

2

C

2

0

2

1

G

1

2

0

2

U

2

1

2

0

  1. Each cell C i,j represents the cost of mutating the nucleotide i into j