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

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Strain Hfr R5

• CGSC#: 4233
• Strain Designation

  Designation	Source	Preference
  Hfr R5	Reeves P.R.	1
  Reeves 5		2
  CSH68		3

  
  
• Sex(Hfr,F+,F-,or F'): Hfr
• Hfr Point of Origin#: 47
• PO Map Position: 2.71
• Direction of Marker Transfer: Counterclockwise
• 8 Mutations:

  Mutation	Location	Certainty	Display
  lacY1	7.79	1	lacY1
  glnX44(AS)	14.99	0	glnX44(AS)
  gal-3	16.98	1	gal-3
  rfbC1	45.43	0	rfbC1
  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:
  • The gal-3 may consist of two mutations and one suppressor.
• 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
  
  

  Printable Strain Report