PB440      Source of Strain:
F- Chromosomal Markers: lacI22
, ilv-290Strain Comments:
- lacI22 was formerly called laci3-
- strR = streptomycin resist.
- Bergquist, PL, EA Adelberg 1972. Abnormal excision and transfer of chromosomal segments by a strain of Escherichia coli K-12. J. Bacteriol. 111(1):119-28.