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

About the CGSC

• CGSC Home
• Scope of the Collection
• The Database
• Privacy Policy
• Acknowledgment of Support

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

• Contact Information
• Charges
• Reviving Strains
• Strains Not Found?

Other CGSC Information

• FAQ on Procedures
• Current Working Map
• 1998 MMBR Map
• 1998 MMBR Gene List
• Map Diagrams (PDFs)

Other Links

• E. coli Links
• Other Stock Collections
• Other Bio Links
• Yale Web

Funded by a grant from the National Science Foundation

Strain AB256

• CGSC#: 256
• Strain Designation

  Designation	Source	Preference
  AB256	Adelberg E.A.	1

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

  Mutation	Location	Certainty	Display
  galK2(Oc)	16.99	1	galK2(Oc)
  xylA5	80.34	1	xylA5
  mtl-1	81.26	1	mtl-1
  thiE1	90.34	1	thiE1

  
  
• Comments:
• Episome/Plasmid: F3

  Plasmid Markers/Mutations:

• References:
  • PITTARD, J, JS LOUTIT, EA ADELBERG 1963. GENE TRANSFER BY F' STRAINS OF ESCHERICHIA COLI K-12. I. DELAY IN INITIATION OF CHROMOSOME TRANSFER. J. Bacteriol. 85:1394-401.
  
  

  Printable Strain Report