TABLE 1.

Frequency of protein pairs in various bacteria

OrganismNo. of protein pairsa% of encoded genomeb
B. subtilis3518.5
S. aureus2338.6
S. pneumoniae1396.8
E. coli3608.2
H. influenzae975.4
P. aeruginosa4668.4
  • a Proteins were paired if their overall level of sequence similarity was an E value of ≤10−20 in reciprocal BLAST searches.

  • b Indicated is the number of proteins in pairs divided by the total number of encoded proteins in each organism.