CGSC Strain#: 1515
Strain Designation: 13-6      Source of Strain: M. Schwartz
Other Designations: AB1515
Other Designations: χ214
Other Designations: chi214
Sex: F- Chromosomal Markers: leuB6(Am), secA206(aziR), fhuA23, lacY1, proC14, tsx-67, purE42, glnX44(AS), λ^-, trpE38, rpsL109(strR), xylA5, mtl-1, thiE1
Strain Comments:

• The lac marker was mistakenly called lacZ in Schwartz 1963 Genetics 38:1357.
• leuB6(Am)-- Suppressed by serU suppressor (supH)
• purE42-- :Strains with this marker are derivatives of Χ148 and may carry malA38LAMR and a suppressor of the Mal^- phenotype, sup-78,near his.
• glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
• glnX44(AS) was formerly called su⁺_II
• glnX44(AS) was formerly called supE44
• glnX44(AS) was formerly called glnV44
• thiE1 was formerly called thi-1
• Am = amber(UAG) mutation
• AS = amber(UAG) suppressor
• aziR = azide resistance
• strR = streptomycin resist.

References:

• SCHWARTZ, NM 1964. SUPPRESSION OF A LAC O-O MUTATION IN ESCHERICHIA COLI. J. Bacteriol. 88:996-1001.
• Elish, M.E., J.R. Pierce, C.F. Earhart 1988. Biochemical analysis of spontaneous frpA mutants of Escherichia coli. J.Gen.Microbiol. 134:1355-1364