CGSC Strain#: 4453
Strain Designation: W3213     
Source of Strain: J. Lederberg
Other Designations: Hfr
13Sex: Hfr
Point of Origin#: 57
Map Position: 8.42
Direction of Marker Transfer: Clockwise
Chromosomal Markers: relA1,
spoT1,
metB1Strain Comments: - spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
References: - Broda, P., J.R. Beckwith, J. G. Scaife 1964. The characterization of a new type of F-prime factor in Escherichia coli K12. Genet.Res. 5:489-494