where can I buy E. coli KNabc - (Feb/25/2005 )

I need this strain for my research. Will I modify the original strain (TG1) by myself? HOw? Any ideas? Any help will be very much appreciated.

Thank you for your time.

You can always write to the corresponding author of a recent paper, in which KNabc E.coli were used, and ask if they could send you some.

mike