E. coli Genetic Resources at Yale
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Strain KL983

• CGSC#: 4240
• Strain Designation

  Designation	Source	Preference
  KL983	Cappello M.C.	1

  
  
• Sex(Hfr,F+,F-,or F'): Hfr
• Hfr Point of Origin#: 53
• PO Map Position: 53.80
• Direction of Marker Transfer: Counterclockwise
• 4 Mutations:

  Mutation	Location	Certainty	Display
  lacY1	7.79	1	lacY1
  LAM-	17.40	1	λ-
  xyl-7	80.34	1	xyl-7
  mglP1	1000.00	1	mglP1

  
  
• Comments:
  • This F insertion is rather unstable, giving rise to F⁺ strains due to excision of the F. This strain is suppressor-free.
• References:
  • Low, K.B. 1973. Rapid mapping of conditional and auxotrophic mutants of Escherichia coli K-12. J.Bacteriol. 113:798-812
  
  

  Printable Strain Report