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

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Strain PK191

• CGSC#: 4316
• Strain Designation

  Designation	Source	Preference
  PK191	Kahn P.	1

  
  
• Sex(Hfr,F+,F-,or F'): Hfr
• Hfr Point of Origin#: 66(ColV)
• PO Map Position: 43.80
• Direction of Marker Transfer: Clockwise
• 5 Mutations:

  Mutation	Location	Certainty	Display
  DE(gpt-lac)5	5.51	1	Δ(gpt-lac)5
  glnX44(AS)	14.99	1	glnX44(AS)
  LAM-	17.40	1	λ-
  relA1	62.71	0	relA1
  thiE1	90.34	1	thiE1

  
  
• Comments:
  • First ref.(Kahn) below is to parent PK19.
  • The deletion was formerly called DE( proB-lac_X111.
  • This strain is ColV^- and ColV^R It is an Hfr_V.
• References:
  • Kahn, PL 1968. Isolation of high-frequency recombining strains from Escherichia coli containing the V colicinogenic factor. J. Bacteriol. 96(1):205-14.
  • Low, K.B. 1973. Rapid mapping of conditional and auxotrophic mutants of Escherichia coli K-12. J.Bacteriol. 113:798-812
  
  

  Printable Strain Report