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

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Strain KL20

• CGSC#: 4396
• Strain Designation

  Designation	Source	Preference
  KL20	Cappello M.C.	1

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

  Mutation	Location	Certainty	Display
  LAM-	17.40	1	λ-
  e14-	26.00	1	e14-
  relA1	62.71	1	relA1
  spoT1	82.34	1	spoT1
  thiE1	90.34	1	thiE1

  
  
• Comments:
  • This strain is a spontaneous F+ revertant of Hfr 3000.
• 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