Table II.

Genome frequenciesa

GenomefC = fGfCGfCG/(fC × fG)fCG/fCG E. coli
E. coli 0.2540.07471.161
  • a Frequencies (f, number of occurrences/length of genome) analyzed from 2.57 × 109 bases of human phase III sequence, 1.96 × 108 bases of mouse phase III sequence, and the entire E. coli genome. fCG/(fC × fG) show CpG suppression, taking into account base usage in the genome, with a value of 1 being the expected random occurrence of CpG.