CGSC Strain#: 4859
Strain Designation: S31      Source of Strain: D. Schlessinger
Other Designations: N181-S31
Sex: Hfr    Point of Origin#: 1   Map Position: 96.80   Direction of Marker Transfer: Clockwise
Chromosomal Markers: λ^-, e14-, relA1, rpsL137(strR), thiE1, met-73, sud-24
Strain Comments:

• e14--- : Loss of the e14 element makes the strain McrA^-.
• thiE1 was formerly called thi-1
• strR = streptomycin resist.

References:

• Mangiarotti, G, D Apirion, D Schlessinger 1966. Selection of sucrose-dependent Escherichia coli to obtain envelope mutants and fragile cultures. Science 153(738):892-4.