Unknow Band from PCR product
Arnoud van Vliet
avvliet at knoware.nl
Sun Jul 23 06:21:48 EST 2000
"biobiobio_2000" <biobiobio_2000 at yahoo.com> wrote in message
news:8lcs53$qlk$1 at justice.csc.cuhk.edu.hk...
> Hi all,
> I have run my PCR products on a 1% agarose gel with TAE buffer. However,
> found a strong band migrating towards the negative electrode after EBr
> the gel. I still saw my product at the positive end that is apparently
> normal. Please suggest the likely possibilities account for the band that
> is close to the well but at the negative electrode end!
what strange names parents give their children these days :)
Did you use genomic DNA as template? Then how much did you use? I have seen
this phenomenon often with people who put in massive amounts of template
DNA. Genomic DNA is high molecular weight, and will only migrate a little
bit into the gel.
Hope this helps
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