Title
MST2-RASSF protein-protein interactions through SARAH domains.
Abstract
The detailed, atomistic-level understanding of molecular signaling along the tumor-suppressive Hippo signaling pathway that controls tissue homeostasis by balancing cell proliferation and death through apoptosis is a promising avenue for the discovery of novel anticancer drug targets. The activation of kinases such as Mammalian STE20-Like Protein Kinases 1 and 2 (MST1 and MST2)-modulated through both homo- and heterodimerization (e.g. interactions with Ras association domain family, RASSF, enzymes)-is a key upstream event in this pathway and remains poorly understood. On the other hand, RASSFs (such as RASSF1A or RASSF5) act as important apoptosis activators and tumor suppressors, although their exact regulatory roles are also unclear. We present recent molecular studies of signaling along the Ras-RASSF-MST pathway, which controls growth and apoptosis in eukaryotic cells, including a variety of modern molecular modeling and simulation techniques. Using recently available structural information, we discuss the complex regulatory scenario according to which RASSFs perform dual signaling functions, either preventing or promoting MST2 activation, and thus control cell apoptosis. Here, we focus on recent studies highlighting the special role being played by the specific interactions between the helical Salvador/RASSF/Hippo (SARAH) domains of MST2 and RASSF1a or RASSF5 enzymes. These studies are crucial for integrating atomistic-level mechanistic information about the structures and conformational dynamics of interacting proteins, with information available on their system-level functions in cellular signaling.
Year
DOI
Venue
2016
10.1093/bib/bbv070
BRIEFINGS IN BIOINFORMATICS
Keywords
Field
DocType
competing protein interactions,SARAH domains,signaling switches,apoptosis,cell fate decision,molecular dynamics
Hippo signaling pathway,Plasma protein binding,Protein–protein interaction,Biology,Kinase,Signal transduction,Bioinformatics,Cell signaling,MST1,Protein-Serine-Threonine Kinases
Journal
Volume
Issue
ISSN
17
SP4
1467-5463
Citations 
PageRank 
References 
1
0.36
5
Authors
7
Name
Order
Citations
PageRank
Goar Sánchez-Sanz111.04
David Matallanas210.36
Lan K. Nguyen310.36
Boris N Kholodenko411112.65
Edina Rosta5131.91
Walter Kolch612114.01
Nicolae-Viorel Buchete710.70