CGSC Strain#: 8261
Strain Designation: MCQ1     
Source of Strain: J. Lutkenhaus
Sex: F-
Chromosomal Markers: [araD139]B/r,
leu-260::Tn10,
ftsQ1(ts)
,
Δ(argF-lac)169,
λ-,
e14-,
flhD5301,
Δ(fruK-yeiR)725(fruA25),
relA1,
rpsL150(strR),
rbsR22,
Δ(fimB-fimE)632(::IS1),
deoC1Strain Comments: - [araD139]B/r-- The thr-leu region was transduced from an E. coli B/r strain (SB3118) in early steps of strain derivation; ara or in some strains ara-leu or thr-leu are from B.
- leu-260::Tn10-- leu::Tn10 from NK6923/NK5961
- Δ(argF-lac)169-- extends from mmuP through orfs preceding argF, through lac to mhpD, literally Δ(mmuP-mhpD)169. (Peters et al. 2003 JB 185:2017)
- Δ(argF-lac)169-- from strain Hfr3000 U169 was initially called ΔlacU169 and described as a lacZY mutation until found to include argF and lacI.
- e14--- : Loss of the e14 element makes the strain McrA-.
- flhD5301-- flagellar defect shown in Komeda and Iino
- Δ(fruK-yeiR)725(fruA25)-- : this fruA25 mutation deletes 29 codons of fruK, fruB and fruBKAp promoter to orf yeiR Peters et al. J.Bact.185:2017.
- rpsL150(strR)-- T to C transition mutation resulting in a K43R amino acid substitution.
- Δ(fruK-yeiR)725(fruA25) was formerly called fruA25
- = tetracycline resistant
- ::IS1 = insertion of IS1
- fruA25 = former designation
- strR = streptomycin resist.
- ts = Temperature Sensitive
References: - Dai, K., Y. Xu, J. Lutkenhaus 1993. Cloning and characterization of ftsN, an essential cell division gene in Escherichia coli isolated as a multicopy suppressor of ftsA12(Ts). J.Bacteriol. 175:3790-3797
- Dai, K., Y. Xu, J. Lutkenhaus 1993. Cloning and characterization of ftsN, an essential cell division gene in Escherichia coli isolated as a multicopy suppressor of ftsA12(Ts). J.Bacteriol. 175:3790-3797