Title
Elucidation Of Structural Determinants Delineates The Residues Playing Key Roles In Differential Dynamics And Selective Inhibition Of Sirt1-3
Abstract
Sirt1-3 are the most studied sirtuins, playing a key role in caloric-dependent epigenetic modifications. Since they are localized in distinct cellular compartments and act differently under various pathological conditions, selective inhibition would be a promising strategy to understand their biological function and to discover effective therapeutics. Here, sirtuin's inhibitor Ex527* is used as a probe to speculate the possible root cause of selective inhibition and differential structural dynamics of Sirt1-3. Comparative energetics and mutational studies revealed the criticality of residues 1279 and 1316 for the Sirt1 selectivity toward Ex527*. Furthermore, essential dynamics and residue network analysis revealed that the side-chain reorientation in residue F190 due to nonconserved residue Y191 played a major role in the formation of an extended selectivity pocket in Sirt2. These changes at the dynamical and residual level, which impact the internal wiring significantly, might help in rationally designing selective inhibitors against Sirt1-3.
Year
DOI
Venue
2021
10.1021/acs.jcim.0c01193
JOURNAL OF CHEMICAL INFORMATION AND MODELING
DocType
Volume
Issue
Journal
61
3
ISSN
Citations 
PageRank 
1549-9596
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Mrityunjay Singh100.34
Mitul Srivastava200.34
Sharad R Wakode300.34
Shailendra Asthana400.34