+ //! The full IUPAC DNA alphabet, with unique, and unknown characters
+ static const char *dna_cstr;
+ static const char *dna_reverse_cstr;
+ static const Alphabet &dna_alphabet();
+ //! the full IUPAC RNA alphabet
+ static const char *rna_cstr;
+ static const char *rna_reverse_cstr;
+ static const Alphabet &rna_alphabet();
+ //! reduced (DNA/RNA) nucelic alphabet