CGSC Strain#: 5552
Strain Designation: GE334      Source of Strain: G. Eggertsson
Sex: F- Chromosomal Markers: leuB6(Am), lac-290, phoA1, tsx-96, recA1, aroE24, rpsE2018, rpsL186(strR), cysG132, malT1(λ^R), gal-290, ilv-591
Strain Comments:

• leuB6(Am)-- Suppressed by serU suppressor (supH)
• recA1-- : Missense mutation, altered isoelectric point. Sequenced: G to A for Nuc. 720 (Gly 160 Asp).
• Am = amber(UAG) mutation
• LamR = Lambda-resistant
• strR = streptomycin resist.

References:

• Andresson, O.S., R.A. Magnusdottir, G. Eggertsson 1976. Deletions of ribosomal protein genes in Escherichia coli merodiploids heterozygous for resistance to streptomycin and spectinomycin. Mol.Gen.Genet. 144:127-130