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Award Abstract # 2212926
LEAPS-MPS: Innovative Approaches to the Structural Characterization of Biomolecular Ions by Mass Spectrometry and Infrared Action Spectroscopy

NSF Org: CHE
Division Of Chemistry
Recipient: UNIVERSITY OF RHODE ISLAND
Initial Amendment Date: April 4, 2022
Latest Amendment Date: September 14, 2022
Award Number: 2212926
Award Instrument: Standard Grant
Program Manager: Pumtiwitt McCarthy
pmccarth@nsf.gov
 (703)292-0000
CHE
 Division Of Chemistry
MPS
 Directorate for Mathematical and Physical Sciences
Start Date: September 1, 2022
End Date: August 31, 2025 (Estimated)
Total Intended Award Amount: $249,990.00
Total Awarded Amount to Date: $249,990.00
Funds Obligated to Date: FY 2022 = $249,990.00
History of Investigator:
  • Daniel Thomas (Principal Investigator)
    dathomas@uri.edu
Recipient Sponsored Research Office: University of Rhode Island
75 LOWER COLLEGE RD RM 103
KINGSTON
RI  US  02881-1974
(401)874-2635
Sponsor Congressional District: 02
Primary Place of Performance: University of Rhode Island
RESEARCH OFFICE
KINGSTON
RI  US  02881-1967
Primary Place of Performance
Congressional District:
02
Unique Entity Identifier (UEI): CJDNG9D14MW7
Parent UEI: NSA8T7PLC9K3
NSF Program(s): OFFICE OF MULTIDISCIPLINARY AC
Primary Program Source: 010V2122DB R&RA ARP Act DEFC V
Program Reference Code(s): 102Z, 7487, 8038, 9150
Program Element Code(s): 125300
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.049

ABSTRACT

This award is funded in whole or in part under the American Rescue Plan Act of 2021 (Public Law 117-2). In this project, funded by the Mathematical and Physical Sciences Directorate and housed in the Chemistry Division, Professor Daniel Thomas and his students at the University of Rhode Island (URI) will study the folding properties of peptides and ribonucleic acid (RNA) chains by cooling them in helium nanodroplets (temperature of -272.7 degrees Celsius) and elucidating their structure by monitoring the absorption of infrared light. To support the full participation of underrepresented groups, Prof. Thomas and his students will also provide mentorship and research opportunities to local high school students through the ACS Project SEED program and implement department-wide initiatives to assess academic climate and identify factors associated with student success. In collaboration with the Rhode Island Museum of Science and Art (RIMOSA), they will provide scientific outreach programs at local middle schools.

The research group directed by Professor Thomas will use the combination of electrospray ionization mass spectrometry (ESI?MS) and helium nanodroplet isolation infrared (HENDI IR) action spectroscopy to unravel the complex free energy landscape of isolated biomolecular ions. The rapid cooling of molecules captured in helium nanodroplets enables kinetic trapping of conformer populations, allowing for quantitative analysis of the conformer free energy landscape beyond the global minimum structure. The foundational experiments in this project will identify the advantages and limitations of this approach and ultimately facilitate the study of dynamic systems featuring ?flat? free energy landscapes that pose challenges for traditional methods, for example intrinsically disordered regions of peptides and proteins.

This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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Schultz, Madeline and Ellis, Neil A and Banor, Nwanne D and Thomas, Daniel A "Complexation of diserinol isophthalamide with phosphorylated biomolecules in electrospray ionization mass spectrometry" International Journal of Mass Spectrometry , v.507 , 2025 https://doi.org/10.1016/j.ijms.2024.117364 Citation Details
Schultz, Madeline and Parker, Sarah L. and Fernando, Maleesha T. and Wellalage, Miyuru M. and Thomas, Daniel A. "Diserinol Isophthalamide: A Novel Reagent for Complexation with Biomolecular Anions in Electrospray Ionization Mass Spectrometry" Journal of the American Society for Mass Spectrometry , v.34 , 2023 https://doi.org/10.1021/jasms.3c00010 Citation Details

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