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293T transfection

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#1 amarieu



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Posted 25 December 2010 - 10:41 AM

Hi All-
I have been having A LOT of trouble getting a successful transfection from a particular DNA (about 2.2kb) into 293T. My negative control and positive control transfect beautifully, so therefore I know my technique is great... but when I run a Western it appears that there is no protein being made (this DNA is flag-tagged as we are in the process of making an antibody). I was looking for suggestions to figure out if the cells are 'spitting out' the DNA and how I might go about fixing that?

Thanks in advance.

#2 scolix


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Posted 29 December 2010 - 11:18 AM

check the plasmid sequence and check if the cDNA is in frame. also is your protein secreted into media?

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