CGSC Strain#: 5014
Strain Designation: Hfr Broda 4     
Source of Strain: P. Broda
Other Designations: ED941
Sex: Hfr
Point of Origin#: 117
Map Position: 7.20
Direction of Marker Transfer: Counterclockwise
Chromosomal Markers: λ-,
relA1,
spoT1,
metB1,
creC510,
λRStrain Comments: - spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
- creC510-- The constitutive phenotype is due to an R77P amino acid substitution
- λR-- Lambda resistant, locus unknown.
- creC510 was formerly called phoM510
- Const = constitutive
References: - Broda, P. 1967. The formation of Hfr strains in Escherichia coli K12. Genet.Res. 9:35-47