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[Yeast] Slow galactose induction

[Yeast] Slow galactose induction - Yeast Forum

[Yeast] Slow galactose induction - Discuss research on yeast the model organism. Post questions and topics on the molecular biology and genetics of Saccharomyces cerevisiae and other yeast species.


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Old 09-04-2007, 09:27 PM
Z.J. Zhang
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Default [Yeast] Slow galactose induction



Kerry:

One possibility is the slow maturation of your CFP protein, rather than
slow induction.

Depending on the version of the CFP, and where the CFP is tagged, it
could take hour(s) to mature.

Zhaojie

Zhaojie Zhang, Ph.D.
Director, Microscopy Core Facility
Department of Zoology and Physiology
University of Wyoming
Laramie, WY 82071
TEL: 307-766-3038
FAX: 307-766-5625
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[Only registered users see links. ]



-----Original Message-----
From: Kerry Geiler [mailto:[Only registered users see links. ]]
Sent: Tuesday, September 04, 2007 11:55 AM
To: [Only registered users see links. ]
Subject: [Yeast] Slow galactose induction

Hi,

I am looking for suggestions as to why my galactose induction process
takes 6 hours. I am expressing CFP under a gal promoter in media with
no glucose and 2% galactose. I am getting fluorescence, but it takes
6 hours to see it. Any ideas why induction could be taking so long?

I grow the cells up in media containing no glucose (2%raffinose)
overnight. Then I induce 150uL of this culture with 2% galactose and
measure fluorescence every 15 minutes. I do not see fluorescence
distinguishable from background until about 6 hours later.

Thanks very much for any suggestions! Please reply to
[Only registered users see links. ].
Thanks,
Kerry

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