I. Overall - Abstract We propose to renew the Biomedical Technology and Research Resource (BTRR) on High Performance Computing for Multiscale Modeling of Biological Systems, hereafter referred to as MMBioS. MMBioS is a joint effort between the University of Pittsburgh (Pitt; lead institution), Carnegie Mellon University (CMU), the Pittsburgh Supercomputing Center (PSC), and the Salk Institute for Biological Studies (Salk). Our mission is to continue to develop computational methods and usable software tools to advance research and training at the interface between computing technology and life sciences. Our biological theme remains: realistic and efficient modeling, analysis and simulations of molecular and cellular structure and dynamics toward understanding and predicting the origin and mechanism of biological function/dysfunction at multiple scales, with focus on synaptic signaling and regulation events, thus facilitating the discovery of new treatments against nervous and immune systems' disorders. Building on the progress made during the past award in starting to fill the gap between modeling efforts at disparate scales of structural biology, cellular microphysiology and large- scale bioimage analysis, we now further expand our efforts toward developing more powerful tools and an integrated platform for efficient implementation and use of our technology. We have increased the scope and number of our Technology Research and Development Projects from 3 to 4, to advance and enable the adaptation of molecular modeling (TR&D1), cell modeling (TR&D2), (cellular) network modeling (TR&D3), and image-derived modeling (TR&D4) methods and software to new challenges. These are driven by seven Driving Biomedical Projects (DBPs) on: the dynamics of neurotransmitter transporters at both molecular and cellular levels (DBP1; NIH and U of Florida); regulation and binding to PSD-95 and its relation to AMPAR trafficking (DBP2; Caltech), multiscale modeling of dopamine transporter function (DBP3; Pitt); spatiotemporal modeling of T cell signaling (DBP4; Bristol, UK); constructing a dynamic, spatial map of transcription and chromatin structure (DBP6; NIH); structure and function of synapses (DBP7; UT Austin); and scalable approaches to modeling using large sets of rules and images (DBP8; Harvard). Previous DBP5 (Allen Brain Institute) on functional connectomics has been successfully completed. We will continue our vigorous training and dissemination programs, and a broad range of Collaboration of Service Projects (C&SPs), taking advantage of the unique experience and capabilities of the PSC, the strengths of the Departments of Computational and Systems Biology (Pitt) and Computational Biology (CMU), and cutting-edge research at the Computational Neurobiology Laboratory at Salk.

Public Health Relevance

The Biomedical Technology and Research Resource (BTRR) on High Performance Computing for Multiscale Modeling of Biological Systems, MMBioS, aims at developing, implementing, disseminating, and enabling the broad usage of, cutting-edge computational technology toward (i) addressing new challenges in neurobiology, cell biology and genomic sciences, such as those posed by Big Data, Brain Initiative and 4D Nucleome Project, and (ii) leveraging existing advances in experimental technology to turn different forms of data into knowledge for facilitating the design of novel biomedical intervention strategies.

Agency
National Institute of Health (NIH)
Institute
National Institute of General Medical Sciences (NIGMS)
Type
Biotechnology Resource Grants (P41)
Project #
2P41GM103712-06
Application #
9278815
Study Section
Special Emphasis Panel (ZRG1)
Program Officer
Resat, Haluk
Project Start
2012-09-24
Project End
2022-07-31
Budget Start
2017-08-01
Budget End
2018-07-31
Support Year
6
Fiscal Year
2017
Total Cost
Indirect Cost
Name
University of Pittsburgh
Department
Biology
Type
Schools of Medicine
DUNS #
004514360
City
Pittsburgh
State
PA
Country
United States
Zip Code
15213
Donovan-Maiye, Rory M; Langmead, Christopher J; Zuckerman, Daniel M (2018) Systematic Testing of Belief-Propagation Estimates for Absolute Free Energies in Atomistic Peptides and Proteins. J Chem Theory Comput 14:426-443
Li, Jing; Ostmeyer, Jared; Cuello, Luis G et al. (2018) Rapid constriction of the selectivity filter underlies C-type inactivation in the KcsA potassium channel. J Gen Physiol 150:1408-1420
Gupta, Sanjana; Hainsworth, Liam; Hogg, Justin S et al. (2018) Evaluation of Parallel Tempering to Accelerate Bayesian Parameter Estimation in Systems Biology. Proc Euromicro Int Conf Parallel Distrib Netw Based Process 2018:690-697
Ponzoni, Luca; Zhang, She; Cheng, Mary Hongying et al. (2018) Shared dynamics of LeuT superfamily members and allosteric differentiation by structural irregularities and multimerization. Philos Trans R Soc Lond B Biol Sci 373:
Ruiz-Martínez, Álvaro; Bartol, Thomas M; Sejnowski, Terrence J et al. (2018) Efficient models of polymerization applied to FtsZ ring assembly in Escherichia coli. Proc Natl Acad Sci U S A 115:4933-4938
Krieger, James; Lee, Ji Young; Greger, Ingo H et al. (2018) Activation and desensitization of ionotropic glutamate receptors by selectively triggering pre-existing motions. Neurosci Lett :
Bromer, Cailey; Bartol, Thomas M; Bowden, Jared B et al. (2018) Long-term potentiation expands information content of hippocampal dentate gyrus synapses. Proc Natl Acad Sci U S A 115:E2410-E2418
Spealman, Pieter; Naik, Armaghan W; May, Gemma E et al. (2018) Conserved non-AUG uORFs revealed by a novel regression analysis of ribosome profiling data. Genome Res 28:214-222
Debiec, Karl T; Whitley, Matthew J; Koharudin, Leonardus M I et al. (2018) Integrating NMR, SAXS, and Atomistic Simulations: Structure and Dynamics of a Two-Domain Protein. Biophys J 114:839-855
Pino-Angeles, Almudena; Lazaridis, Themis (2018) Effects of Peptide Charge, Orientation, and Concentration on Melittin Transmembrane Pores. Biophys J 114:2865-2874

Showing the most recent 10 out of 180 publications