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

About the CGSC

• CGSC Home:
• Scope of the Collection:
• The Database
• Acknowledgment of Support

Searching the CGSC Database

• Help With Query Forms
• Strain Query
• Mutation Query
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• Gene Product Query
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• Query Help

How to Request Strains or Information

• Contact Information
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Other CGSC Information

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

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Funded by a grant from the National Science Foundation

Site pEXT21

• Name: pEXT21
• Type: Plasmid
  Plasmid Sites:

  aadA(strR,SpcR)

  lacIp-4000(lacIQ)

  
  
• Priority: 0
• Comment:
• References:
• 1 Strains Carrying This Plasmid

  Name	Mutations	Genotype
  DH5&alpha/pEXT21	12	F-, Δ(argF-lac)169, φ80dlacZ58(M15), ΔphoA8, glnV44(AS), λ-, deoR481, rfbC1?, gyrA96(NalR), recA1, endA1, thiE1, hsdR17, pEXT21