Sorbitol in Yeast Transformations
pawelek at cs.mcgill.ca
Sat Jan 15 10:58:39 EST 1994
I'm trying to optimize a lithium acetate-mediated yeast transformation
protocol in order to obtain a higher efficiency. I've dug up about four
different variations of the protocol in the literature. Some include
1M sorbitol in the LiAc/TE buffer while others (including one claiming
an efficiency of 10^5 transformants/ug) do not.
Therefore, I have the following questions:
(a) What is the purpose of including 1M sorbitol in the LiAc/TE buffer?
(b) Does the inclusion of sorbitol at this stage improve transformation
efficiency or can it be omitted?
Thanks in advance.
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