Abstract: With petascale computing power on the immediate horizon, computational studies have the opportunity to make unprecedented contributions to drug discovery efforts. Although ligand flexibility is routinely accounted for in computer-aided drug design (CADD) methodologies, incorporating receptor flexibility and system complexity remains an important challenge. The next frontier in flexible receptor methodologies is the integration of cutting-edge physics-based computational methods into the CADD techniques, in conjunction with the use of more complex biological systems. The incorporation of powerful new predictive theoretical tools into flexible receptor methodologies for ligand discovery and design will provide an important shift to the CADD field, enabling the discovery of novel ligand-binding modes and expediting the estimation of more accurate ligand free energies of binding. My vision is to drive the computer-aided drug design field towards a systems biology approach, where multiple proteins, and the RNAs they bind, are targeted - thus challenging the one-target, one- disease, one-drug paradigm. The new approaches I envision will integrate multiple time and length scales and take explicit advantage of the new structural information yielded by these algorithms. These investigations will push important frontiers in our understanding of biology, ultimately opening new pathways to more effective therapeutics.

Public Health Relevance

With petascale computing power on the immediate horizon, computational studies have the opportunity to make unprecedented contributions to drug discovery efforts. The next frontier in flexible receptor methodologies is the integration and streamlining of cuttingedge physics-based computational methods into computer-aided drug design. The results of this work will catalyze the broader use of these methods within the biomedical research community and be applicable to a wide range of drug targets that are extremely relevant to global health.

Agency
National Institute of Health (NIH)
Institute
Office of The Director, National Institutes of Health (OD)
Type
NIH Director’s New Innovator Awards (DP2)
Project #
4DP2OD007237-03
Application #
8798517
Study Section
Special Emphasis Panel (ZGM1)
Program Officer
Basavappa, Ravi
Project Start
2010-09-30
Project End
2016-10-31
Budget Start
2015-07-01
Budget End
2016-10-31
Support Year
3
Fiscal Year
2015
Total Cost
Indirect Cost
Name
University of California San Diego
Department
Chemistry
Type
Schools of Arts and Sciences
DUNS #
804355790
City
La Jolla
State
CA
Country
United States
Zip Code
92093
Mulero, Maria Carmen; Shahabi, Shandy; Ko, Myung Soo et al. (2018) Protein Cofactors Are Essential for High-Affinity DNA Binding by the Nuclear Factor ?B RelA Subunit. Biochemistry 57:2943-2957
Bohl, Thomas E; Ieong, Pek; Lee, John K et al. (2018) The substrate-binding cap of the UDP-diacylglucosamine pyrophosphatase LpxH is highly flexible, enabling facile substrate binding and product release. J Biol Chem 293:7969-7981
Amaro, Rommie E; Ieong, Pek U; Huber, Gary et al. (2018) A Computational Assay that Explores the Hemagglutinin/Neuraminidase Functional Balance Reveals the Neuraminidase Secondary Site as a Novel Anti-Influenza Target. ACS Cent Sci 4:1570-1577
Purawat, Shweta; Ieong, Pek U; Malmstrom, Robert D et al. (2017) A Kepler Workflow Tool for Reproducible AMBER GPU Molecular Dynamics. Biophys J 112:2469-2474
Wagner, Jeffrey R; Sørensen, Jesper; Hensley, Nathan et al. (2017) POVME 3.0: Software for Mapping Binding Pocket Flexibility. J Chem Theory Comput 13:4584-4592
Hirakis, Sophia P; Malmstrom, Robert D; Amaro, Rommie E (2017) Molecular Simulations Reveal an Unresolved Conformation of the Type IA Protein Kinase A Regulatory Subunit and Suggest Its Role in the cAMP Regulatory Mechanism. Biochemistry 56:3885-3888
Shi, Ke; Carpenter, Michael A; Banerjee, Surajit et al. (2017) Structural basis for targeted DNA cytosine deamination and mutagenesis by APOBEC3A and APOBEC3B. Nat Struct Mol Biol 24:131-139
Shi, Ke; Demir, Özlem; Carpenter, Michael A et al. (2017) Conformational Switch Regulates the DNA Cytosine Deaminase Activity of Human APOBEC3B. Sci Rep 7:17415
Demir, Ö; Ieong, P U; Amaro, R E (2017) Full-length p53 tetramer bound to DNA and its quaternary dynamics. Oncogene 36:1451-1460
Prabhu, Lakshmi; Chen, Lan; Wei, Han et al. (2017) Development of an AlphaLISA high throughput technique to screen for small molecule inhibitors targeting protein arginine methyltransferases. Mol Biosyst 13:2509-2520

Showing the most recent 10 out of 61 publications