E. coli Genetic Resources at Yale
CGSC, The Coli Genetic Stock Center

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Strain X7014a

• CGSC#: 5358
• Strain Designation

  Designation	Source	Preference
  X7014a	Beckwith J.R.	1

  
  
• Sex(Hfr,F+,F-,or F'): F-
• 9 Mutations:

  Mutation	Location	Certainty	Display
  lacZ43(Fs) or lacZ13(Oc)	8.00	1	lacZ43(Fs) or lacZ13(Oc)
  LAM-	17.40	1	λ-
  pyrC46	24.16	1	pyrC46
  purB51	25.65	1	purB51
  rpsL125(strR)	74.84	1	rpsL125(strR)
  malT1(LamR)	76.54	1	malT1(λR)
  xyl-7	80.34	1	xyl-7
  mtlA2	81.26	1	mtlA2
  thiE1	90.34	1	thiE1

  
  
• Comments:
  • X7014 developed another auxotrophy during storage in stabs. This revertant was isolated in 1971.
• References:
  • Semple, KS, DF Silbert 1975. Mapping of the fabD locus for fatty acid biosynthesis in Escherichia coli. J. Bacteriol. 121(3):1036-46.
  
  

  Printable Strain Report