query for Antibiotic selction using diphtheria toxin

Itisam Sarangi via methods%40net.bio.net (by itisam.sarangi from gmail.com)
Wed Sep 5 03:54:50 EST 2007

I am using phoenix cell line based on (293T) as retro viral packaging cell
It uses diphtheria toxin to selection. But til now I am not bale to
understand the method/mechanism of this selection.

Does anyone know how the cell in selected using diphtheria toxin.

thanking you in advance


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