I've tried to post my reply to this quite a few times but as best I can
tell (and my friends can tell from their CCP4bb subscriptions) I have been
foiled by jiscmail every time. Hopefully this will go through. And
hopefully I'm not reposting stuff I already sent. Here we go:
Okay, the consensus
Dear all
Does anyone has experience with Thermofluor assay to find the substrate
transported/binding by a membrane protein? My protein does not have any similar
structures and the substrate suggested by sequence analysis is not being
transported in proteoliposome. I know ITC is good but I am
of interest. However, I have
never personally tried it with a membrane protein
.
Best,,
,
D
From: Theresa Hsu [theresah...@live.com]
Sent: 12 April 2014 09:38
To: ccp4bb
Subject: [ccp4bb] Thermofluor assay
Dear all
Does anyone has experience
Hi Theresa,
Check if this works in your case
http://www.sciencedirect.com/science/article/pii/S0969212608000609
good luck !!
On Sat, Apr 12, 2014 at 4:38 PM, Theresa Hsu theresah...@live.com wrote:
Dear all
Does anyone has experience with Thermofluor assay to find the substrate
There is an alternative method that does not rely on hydrphobic interaction
of dye with the protein interior: it relies instead on reaction between
fluorogenic dye and interior cysteine residues of the protein. When protein
melts these Cys residues become exposed, react with the dye and generate
Hello,
we want to use the thermofluor thermal shift assay to screen for buffers
that our proteins are happy in.
Reading around the subject, I am a bit unclear as to what to be looking for
with regard to a stabilizing affect. Initially, we thought, the higher the
Tm, then the more stabilizing
Hi,
I am interested in using the thermofluor to assess the stability of my protein
in different buffers. Can anyone recommend a vendor that supplies buffer
screens, possibly in 96 well format?
Not crystallization buffers, just ordinary storage buffers.
Thanks
brenda
Quoting Andreas Förster
Hi again,
Martin pointed out to me that my description of the BioRad machine was
in fact of an older model from ca. 2003 which indeed required manual
filter changes. The iQ5 has multiplexing capability just like the
Mx3005p. I'll leave further discussions to the experts ;-)
Derek
Hei Jeroen,
Quite recently we got BioRad MiniOpticon system for the thermoflor based
assays. I think this is the least expensive RT-PCR on the market but it performs
very well in our experiments.
It can excite the samples between 470 and 505 nm and one of the detection
channel covers the
Dear all,
a question very related to the discussion before. I have been reading the
papers about the thermofluor experiment with great interest.
I wonder what people think about the underlying principles/ideas and the
success that the method yielded in their own labs for crystallization or
Dear Kornelius,
I found the idea of doing Thermofluor on membrane proteins really
intriguing - for identifying the best buffer and detergent, secondary
detergents, even for checking crystallization drops that stayed clear.
(This latter experiment should theoretically be possible with large
Kornelius,
have a look at the following paper:
Yeh AP, McMillan A, Stowell MH.
http://www.ncbi.nlm.nih.gov/pubmed/16552147?ordinalpos=1itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
yes indeed, the Biorad MiniOpticon is the cheapest so far. Next one on
my list is the Applied Biosystems StepOne. Can anybody comment on the
latter machine (not the more expensive StepOnePlus)?
The machines proposed like Roche LC480, Stratagene Mx3005p or Biorad iQ5
are far beyond 30 k€ list
] On Behalf Of Andreas Förster
Sent: Wednesday, February 13, 2008 4:01 AM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] Thermofluor experiment
Dear Kornelius,
I found the idea of doing Thermofluor on membrane proteins really intriguing -
for identifying the best buffer and detergent, secondary
Hi Jeroen,
We used a BioRad iCycler iQ for the measurements in
Thermofluor-based high-throughput stability optimization of proteins
for
structural studies. Ericsson, et. al. Analytical Biochemistry (2006)
357:289-298.
The wavelengths for excitation and detection were ~490 and ~575 nm,
@JISCMAIL.AC.UK
Betreff: [ccp4bb] Thermofluor
Sorry for the off-topic but can somebody recommend highly a sensitive
RT-PCR machine for the thermofluor experiment (sypro orange).
That would imply excitation below 500 nm (ideally 470) and detection at
about 570 nm, right? I know several simple machines have
Hi Jeroen,
We just bought a Stratagene Mx3005p for the Thermofluor method (also
known as differential scanning fluorimetry). This was after talking to
Martin, among others, he he... We haven't had it long and did our
first experiments last Friday, but it produced good results straight
Sorry for the off-topic but can somebody recommend highly a sensitive
RT-PCR machine for the thermofluor experiment (sypro orange).
That would imply excitation below 500 nm (ideally 470) and detection at
about 570 nm, right? I know several simple machines have a problem with
the 570 nm...
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