It is so strange
carnac at realitys-edge.com
Mon Jan 13 01:45:28 EST 2003
"Mike" <zhuhu at cuhk.edu.hk> wrote in message
news:avtic5$1ls8$1 at justice.itsc.cuhk.edu.hk...
> I met a strange problem, Could someone help me?
> I used the Plasmid Prep Kit of Qiagen to prepare the plasmids, but I found
> that there always have two small bands before the supercoiled plasmid
> The large one is about 500bp. Other plasmids also have this problem. I do
> it strictly according to the manual.
Most likely contaminating OC plasmids.
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