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Biotech / Medical : ARIAD Pharmaceuticals -- Ignore unavailable to you. Want to Upgrade?


To: Pseudo Biologist who wrote (980)2/4/2000 6:45:00 AM
From: Mike McFarland  Respond to of 4474
 
Quantitative advantage of bundled activators

{Sorry if I am repeating something that has
already been pointed out, my skull is month thick
window, the light just now getting through.}

Went thru "A General Strategy..." and ran the highlighter
over this: The simplest explanation for why bundled
activators are so much more effective is that there is a
threshold requirement for the number of activators that
must be delivered to a promoter before transcription
can be initiated.
(example)

and
...we have developed an alternative tetramerization
domain of human origin that should be minimally
immunogenic (unpublished data).


Is this the same Ariad whose shareprice was giving me
fits last summer? Of course the manuscript was submitted
April 1999, this is not something that they just cooked
up these past few months.



To: Pseudo Biologist who wrote (980)2/4/2000 7:16:00 AM
From: scott_jiminez  Respond to of 4474
 
PB - Really sounds like logistical concerns are a non-issue. I'll drop by my Biomed stacks today to peruse.

Mike - the existing data going in to the bundling paper was that - for unknown reasons - adding more activation TFs in a linear array did NOT further enhance transcription. In fact, it was often found to be deleterious. The 3-dimensional bundling appears to have done an end-run around this limitation.