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

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Strain KL19

• CGSC#: 4290
• Strain Designation

  Designation	Source	Preference
  KL19	Cappello M.C.	1

  
  
• Sex(Hfr,F+,F-,or F'): Hfr
• Hfr Point of Origin#: 67
• PO Map Position: 22.01
• Direction of Marker Transfer: Clockwise
• 0 Mutations:
• Comments:
  • No markers--strain is prototrophic and LAM⁺. This strain gives a negative MS-2 test, even though it is Hfr.
• References:
  • Low, K.B. 1968. Formation of merodiploids in matings with a class of Rec- recipient strains of Escherichia coli K12. Proc.Natl.Acad.Sci.USA 60:160-167
  
  

  To request this strain visit the ECGRC website.

  
  

  Printable Strain Report