CGSC Strain#: 5871
Strain Designation: CA358     
Source of Strain: D. Zipser
Other Designations: ZIP195
Sex: Hfr
Point of Origin#: 1
Map Position: 96.80
Direction of Marker Transfer: Clockwise
Chromosomal Markers: lacZ521(UGA)
,
λ-,
e14-,
trpA49(Am)
,
relA1,
spoT1Strain Comments: - lacZ521(UGA)-- is an UGA mutation in region 13 of the lacZ gene, as described by Zipser et al. 1970.
- e14--- : Loss of the e14 element makes the strain McrA-.
- trpA49(Am)-- is the amber mutation formerly called trp-8am by Brenner.
- spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
- Am = amber(UAG) mutation
- UGA = opal(UGA) mutation
References: - Zipser, D. 1967. J.Mol.Biol. 29:441-0
- Zipser, D, S Zabell, J Rothman, T Grodzicker, M Wenk 1970. Fine structure of the gradient of polarity in the z gene of the lac operon of Escherichia coli. J. Mol. Biol. 49(1):251-4.