Druggable orthosteric and allosteric hot spots to target protein-protein interactions.

Abstract:

:Drug designing targeting protein-protein interactions is challenging. Because structural elucidation and computational analysis have revealed the importance of hot spot residues in stabilizing these interactions, there have been on-going efforts to develop drugs which bind the hot spots and out-compete the native protein partners. The question arises as to what are the key 'druggable' properties of hot spots in protein-protein interactions and whether these mimic the general hot spot definition. Identification of orthosteric (at the protein- protein interaction site) and allosteric (elsewhere) druggable hot spots is expected to help in discovering compounds that can more effectively modulate protein-protein interactions. For example, are there any other significant features beyond their location in pockets in the interface? The interactions of protein-protein hot spots are coupled with conformational dynamics of protein complexes. Currently increasing efforts focus on the allosteric drug discovery. Allosteric drugs bind away from the native binding site and can modulate the native interactions. We propose that identification of allosteric hot spots could similarly help in more effective allosteric drug discovery. While detection of allosteric hot spots is challenging, targeting drugs to these residues has the potential of greatly increasing the hot spot and protein druggability.

journal_name

Curr Pharm Des

authors

Ma B,Nussinov R

doi

10.2174/13816128113199990073

subject

Has Abstract

pub_date

2014-01-01 00:00:00

pages

1293-301

issue

8

eissn

1381-6128

issn

1873-4286

pii

CPD-EPUB-20130522-11

journal_volume

20

pub_type

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