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cDNA library (in Lambda  ZAP vector) screening


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#1 Rachana

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Posted 30 December 2001 - 08:01 AM

while taking replica (second lift)of labda phage (cDNA library) on a nitrocellulse membrane for screeing by antibody the soft agar comes out  with the membrane .if there is any solution to avoid this?

#2 Franz

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Posted 24 June 2004 - 12:18 AM

Hi!
Looks like a rather simple answer, but sometimes these answers are the best. Precool your plates for about an hour before using them. I experienced the same problems in my lambda plaque lifts and by cooling the plates the problems vanished!
Hope that I helped you
Franz

#3 zhongmindai

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Posted 24 June 2004 - 07:52 PM

Sometimes precool the plate is not enough to prevent the top agar from adhering to the membrane, for this reason, I usually add more NZY top agar to the LB/NZY plate than the Kit mentioned when spread the plaques.
Hope this help you!

Zhong-Min Dai
Zhong-Min Dai




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