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I will recommend you to go ahead and try a peptide that mimic the sort helix of 
one of the partners.
It is unlikely to discover in a sort time a small molecule, which can do the 
same thing.
Best wishes
George

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of
[EMAIL PROTECTED]
Sent: 01 May 2006 17:40
To: [email protected]
Subject: [ccp4bb]: Disrupting a protein complex with a peptide


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Dear All :

Sorry for this non-CCP4 question.

I am dealing with a protein binary complex, with known structure. We know
that the interaction between both partners is processed via a short helix.

OK, let's imagine that we would like to disrupt this interaction in vitro.
I was thinking in using a peptide that will mimic the short helix of one
of the partners to block the other one.

Is it a crazy idea ?. Anyone has dealed with something like that with the
same approach ?. Is it better to use peptides to disrupt protein
complexes, or we could use small molecules as well ?. Any rational (but
easy, for dummies level) approach to design the peptide that blocks the
complex formation ?.

I would appreciate some help and comments about that.

Many, many thanks

Cheers

Francisco




-----------------------------------------
Francisco J. Enguita, Ph.D.
Host-pathogen Interactions Group
Macromolecular Crystallography Laboratory
ITQB
EAN, Av. da República
2781-901 Oeiras
Portugal
Phone : +351-21-4469663
Fax : +351-21-4433644
E-mail : [EMAIL PROTECTED]
-----------------------------------------

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