Sorry for the non-ccp4 question. I am having trouble to miniprep plasmid from 
yeast. The plasmid is pCTCON2 and the yeast strain is EBY100. I am using 
Zymoprep Yeast Plasmid Miniprep II kit. I grow the culture in SDCAA medium to 
OD0.3 and spin down 1.5ml cells. The pellet was resuspended in solution 1 
supplemented with Zymolyase and was incubated for 1 hr. I followed the manual 
exactly for the rest steps. However, I have never been able to recover any 
plasmid. There is nothing or smear in the agarose gel and there is no colony 
after transformation to DH5alpha after one overnight incubation at 37. The 
existence of the plasmid in the yeast has been confirmed by the ability to grow 
in the nutrition deficient medium SDCAA and the expression of plasmid protein 
in SGCAA medium was observed by FACS. I am wondering if someone here can shine 
some light on this issue. Any thoughts or suggestions are welcome.

Thank you.

Zhen



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