CGSC Strain#: 6707
Strain Designation: CR34 Thy- SR     
Source of Strain: J. Gross
Other Designations: JW116
Sex: F-
Chromosomal Markers: thr-1,
leuB6(Am)
,
fhuA21,
cyn-101,
lacY1,
glnX44(AS)
,
λ-,
rfbC1,
thyA6,
rpsL67(strR)
,
glpR200(glpc),
thiE1,
deoC1Strain Comments: - Ref. to parent strain CR34 Thy-.
- leuB6(Am)-- Suppressed by serU suppressor (supH)
- glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
- thyA6-- : Even with Luria or other complete media, supplement with thymine.
- thyA6-- Strains with this marker must have their medium supplemented with thymine (25ug/ml). This is true even for rich medium such as LB. Otherwise thymine starvation can lead to thymineless death.
- cyn-101 was formerly called cyn-1
- glnX44(AS) was formerly called su+II
- glnX44(AS) was formerly called supE44
- glnX44(AS) was formerly called glnV44
- rfbC1 was formerly called rfbD1
- thiE1 was formerly called thi-1
- Am = amber(UAG) mutation
- AS = amber(UAG) suppressor
- glpc = constitutive expr.glp regulon
- strR = streptomycin resist.
References: - Okada, T., K. Yanagisawa, A. Ryan 1961. Z.Vererbungsl. 92:402-0
- Wechsler, JA, JD Gross 1971. Escherichia coli mutants temperature-sensitive for DNA synthesis. Mol. Gen. Genet. 113(3):273-84.
- Rooney, SA, H Goldfine 1972. Isolation and characterization of 2-keto-3-deoxyoctonate-lipid A from a heptose-deficient mutant of Escherichia coli. J. Bacteriol. 111(2):531-41.
- Koplow, J, H Goldfine 1974. Alterations in the outer membrane of the cell envelope of heptose-deficient mutants of Escherichia coli. J. Bacteriol. 117(2):527-43.
- Coleman, WG, KS Deshpande 1985. New cysE-pyrE-linked rfa mutation in Escherichia coli K-12 that results in a heptoseless lipopolysaccharide. J. Bacteriol. 161(3):1209-14.