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

About the CGSC

• CGSC Home
• Scope of the Collection

Searching the CGSC Database

• Help With Query Forms
• Strain Query
• Mutation Query
• Gene/Site Query
• Gene Product Query
• Reference Query
• Query Help
• Info on Genetic Nomenclature

How to Request Strains or Information

• Reviving Strains
• Contact Information

Strain CLB7

• CGSC#: 6642
• Strain Designation

  Designation	Source	Preference
  CLB7	Bassett C.L.	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)
  lacY1	7.79	1	lacY1
  rna-19	13.87	1	rna-19
  LAM-	17.40	0	λ-
  galU536	27.82	1	galU536
  recB21	63.60	1	recB21
  pnp-7	71.28	1	pnp-7
  rpsL132(strR)	74.84	1	rpsL132(strR)
  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:
  • This strain is Thr⁺. Either it does not carry thr-1 or the marker is very leaky in this background.
• References:
  • Bassett, CL, JR Rawson 1983. In vitro coupled transcription-translation of linear DNA fragments in a lysate derived from a recB rna pnp strain of Escherichia coli. J. Bacteriol. 156(3):1359-62.
  
  

  Printable Strain Report