Tuesday, 15 November 2011

Off-topic: DSF thermo cycler low temp limit

From: Reginald McNulty
Date: 27 October 2011 00:08


We are trying to determine Tm value of rather unstable proteins with a Tm in
the mid 20 C range using DSF/thermofluor.  Our Stratagene thermocycler has a
low temp limit of 25 C (Peltier).  I called the company and they said it's a
'hardware limit' that cannot be changed.

1) Has anyone been able to 'hotwire' the MX3000/3005 to go below this limit?

2) Are there other thermofluor machines that allow lower starting
temperatures (say 4, 10 or 15 C)?

Best regards,
-Reggie

 



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From: Jürgen Bosch


CD spec with Pelletier is an option too

Jürgen 

......................
Jürgen Bosch
Johns Hopkins Bloomberg School of Public Health
Department of Biochemistry & Molecular Biology
Johns Hopkins Malaria Research Institute
615 North Wolfe Street, W8708
Baltimore, MD 21205

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From: Morten Groftehauge


Lots of systems go to 4C. Even a cheapo one like the Applied Biosystems StepOnePlus.

-Morten Groftehauge


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