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

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Strain IB5

• CGSC#: 5054
• Strain Designation

  Designation	Source	Preference
  IB5	Bjork G.R.	1

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

  Mutation	Location	Certainty	Display
  thr-1	0.01	1	thr-1
  leuB6(Am)	1.74	1	leuB6(Am)
  fhuA2::IS2	3.61	0	fhuA2::IS2
  glnX44(AS)	14.99	1	glnX44(AS)
  gal-3	16.98	1	gal-3
  his-65	44.00	1	his-65
  relA2	62.71	1	relA2
  malT1(LamR)	76.54	1	malT1(λR)
  xyl-7	80.34	1	xyl-7
  mtlA2	81.26	1	mtlA2
  argH46	89.55	1	argH46
  trmA5	89.67	1	trmA5
  thiE1	90.34	1	thiE1

  
  
• Comments:
• References:
  • Bjork, G.R., L.A. Isaksson 1970. Isolation of mutants of Escherichia coli lacking 5-methyluracil in transfer ribonucleic acid or 1-methylguanine in ribosomal RNA. J.Mol.Biol. 51:83-100
  
  

  Printable Strain Report