The sequence of purines and pyrimidines in nucleic acids and polynucleotides. Included here are nucleotide-rich regions, conserved sequence, and DNA transforming region.
(Slot-Value-Type Nucleotide-Sequence Part-Of Nucleotide-Sequence) (=> (Nucleotide-Sequence ?Self) (And (Exists (?A) (And (Symbolic-Sequence-Of ?Self ?A) (Or (Purine ?A) (Pyrimidine ?A)))) (Exists (?B) (And (Represents ?Self ?B) (Or (Gene-Or-Genome ?B) (Nucleic-Acid-Nucleoside-Or-Nucleotide ?B) (Polynucleotide ?B))))))