EcOl染色体的结构 E coli 4.6Mb. 4288genes E coli K12 DNA sequence, 1997 90% encode protein 8 locations of remnants of bacteriophage Y genomes Insertion sequences(s)E.coli 染色体的结构 • E.coli 4.6Mb. 4288genes • E.coli K12 DNA sequence，1997 • 90% encode protein • 8 locations of remnants of bacteriophage genomes. • Insertion sequences (IS)