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 EWH321

• CGSC#: 6133
• Strain Designation

  Designation	Source	Preference
  EWH321	Hafner E.W.	1

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

  Mutation	Location	Certainty	Display
  thr-1	0.01	1	thr-1
  araC14	1.52	1	araC14
  speD98(del)	2.91	1	ΔspeD98
  DE(gpt-proA)62	5.51	1	Δ(gpt-proA)62
  lacY1	7.79	1	lacY1
  glnX44(AS)	14.99	1	glnX44(AS)
  galK2(Oc)	16.99	1	galK2(Oc)
  LAM-	17.40	1	λ-
  gyrA99(NalR)	50.33	1	gyrA99(NalR)

  
  
• Comments:
• References:
  • Hafner, EW, CW Tabor, H Tabor 1979. Mutants of Escherichia coli that do not contain 1,4-diaminobutane (putrescine) or spermidine. J. Biol. Chem. 254(24):12419-26.
  
  

  Printable Strain Report