CGSC Strain#: 12348
Strain Designation: SQ171     
Source of Strain: Quan
Sex: F-
Episome/Plasmid: ptRNA67
Plasmid Markers/Mutations: orip15A,
aadA(strR,SpcR)
,
trpT ,
thrV ,
ileU ,
aspT ,
alaU ,
gltT Plasmid Comment: This plasmid was made by inserting the gene encoding tRNAglu2 into ptRNA66
Episome/Plasmid: pKK3535
Plasmid Markers/Mutations: bla(ApR)
,
oripMB1,
rrsB ,
gltT ,
rrlB ,
rrfB Plasmid Comment: This plasmid contains the rrnB cluster cloned into the BamHI site of pBR322
Chromosomal Markers: Δ(rrsH-aspU)794(::FRT),
λ-,
Δ(rrfG-rrsG)791(::FRT),
Δ(rrfF-rrsD)793(::FRT),
rph-1,
Δ(rrsC-trpT)795(::FRT),
Δ(rrsA-rrfA)792(::FRT),
Δ(rrsB-rrfB)790(::FRT),
Δ(rrsE-rrfE)789(::FRT)Strain Comments: - rph-1-- is a 1 bp deletion that results in frameshift over last 15 codons and has polar effect on pyrE leading to suboptimal pyrimidine levels on minimal medium.(Jensen 1993 JBact.175:3401)
- SpcR = spectinomycin resistant
- strR = streptomycin resist.
- ApR = ampicillin resistant
References: - Quan, S, O Skovgaard, CL Squires 2010. Escherichia coli Ribosomal RNA deletion strain. unpublished results :0-0.