CGSC Strain#: 4808
Strain Designation: MA108     
Source of Strain: W.K. Maas
Other Designations: PA260 R9
Sex: F-
Chromosomal Markers: argF45,
lacY1 or lacZ4 or lac-44,
tsx-73,
glnX44(AS)
,
gal-6,
hisG1,
serA25,
rpsL133(strR)
,
malT1(λ
R)
,
xyl-7,
thiE1,
argI44Strain Comments: - The 84 -5' region comes from E. coli B (Gorini B90H).
- glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
- hisG1-- This mutation has been reported as either a frameshift or a 36 nt deletion
- 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
- xyl-7 was formerly called xylA7
- AS = amber(UAG) suppressor
- LamR = Lambda-resistant
- strR = streptomycin resist.
References: - MAAS, R, WK MAAS 1962. Introduction of a gene from Escherichia coli B into HFR and F-strains of Escherichia coli K-12. Proc. Natl. Acad. Sci. U.S.A. 48:1887-93.
- Jacoby, GA 1971. Mapping the gene determining ornithine transcarbamylase and its operator in Escherichia coli B. J. Bacteriol. 108(2):645-51.