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Dual E3 ligase function of TRIM25 in modulating innate immunity

Award Number: K99GM154063
ORGANIZATION: NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: TRAINING/TRAINEESHIP
PERIOD OF PERFORMANCE START DATE: 05/01/2024
PERIOD OF PERFORMANCE END DATE: 04/30/2025
AWARD TERMINATION DATE: 05/19/2025

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Dual E3 ligase function of TRIM25 in modulating innate immunity - Project summary/abstract Innate immunity is crucial for human health and is primarily regulated by post-translational modifications, such as ubiquitin and ubiquitin-like (ubl) modifiers. Specifically, Tripartite motif-containing protein 25 (TRIM25), is an E3 ligase that enzymatically modifies substrates with ubiquitin and the ubl protein ISG15 and participates in modulating innate immunity through the immunoreceptors Retinoic acid-inducible gene I-like receptors (RLRs). Despite a general understanding of the role TRIM25 plays in the ubiquitination of RIG-I, little is known about the role TRIM25 plays in ISGylation of RLRs and how TRIM25 selects between either process. Further, a new viral mode of antagonism of TRIM25 by the Human Papilloma Virus have been discovered but have not been defined at the molecular level. In this proposal, In the K99 phase of this award (Aim 1), I will investigate the mechanism of the viral E6 antagonism of TRIM25 and how this inhibition effects the dual functions of TRIM25 to ubiquitinate and ISGylate RLRs. In the R00 phase of this award (Aim 2, I will dissect the functional selectivity of TRIM25 and the effects this has on substrate modification. This research will provide me with training in yeast display systems, directed evolution and biochemistry and research on TRIM25 bifunctionality will be carried over to my own lab. This award will enable me to take advantage of protein engineering and immunology expertise via my advisory committee (Dr. Binning and Dr. Pilon-Thomas), as well as career development opportunities at the Moffitt Cancer Center. I will also bolster my previous experience in diversity, equity and inclusion (DEI) advocacy with new training to best position myself to further DEI efforts throughout my institution and community. I will attend conferences and participate in Moffitt-sponsored and MOSAIC UE5 initiatives focused on lab management and leadership. This will aid me transition to an independent scientist specializing in Ubiquitin biology and innate immunity, which is a rapidly growing and important area of scientific research.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2026 ( Subtotal = $0 )
2026	2024	H. LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE HOSPITAL, INC.	12902 USF MAGNOLIA DR	TAMPA	FL	33612	HILLSBOROUGH	USA	Biomedical Research and Research Training	001	1	1/26/2026	TERMINATION	$11,073
2026	2024	H. LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE HOSPITAL, INC.	12902 USF MAGNOLIA DR	TAMPA	FL	33612	HILLSBOROUGH	USA	Biomedical Research and Research Training	000	1	1/26/2026	TERMINATION	-$11,073
														Subtotal = $0

Issue Date FY: 2025 ( Subtotal = -$11,073 )
2025	2024	H. LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE HOSPITAL, INC.	12902 USF MAGNOLIA DR	TAMPA	FL	33612	HILLSBOROUGH	USA	Biomedical Research and Research Training	000	1	5/19/2025	TERMINATION	$0
2025	2024	H. LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE HOSPITAL, INC.	12902 USF MAGNOLIA DR	TAMPA	FL	33612	HILLSBOROUGH	USA	Biomedical Research and Research Training	001	1	9/3/2025	TERMINATION	-$11,073
														Subtotal = -$11,073

Issue Date FY: 2024 ( Subtotal = $110,335 )
2024	2024	H. LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE HOSPITAL, INC.	12902 USF MAGNOLIA DR	TAMPA	FL	33612	HILLSBOROUGH	USA	Biomedical Research and Research Training	000	1	4/19/2024	NEW	$110,335
														Subtotal = $110,335

Grand Total All Awards = $99,262

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Dual E3 ligase function of TRIM25 in modulating innate immunity

Award Number: K99GM154063

ORGANIZATION: NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: TRAINING/TRAINEESHIP

PERIOD OF PERFORMANCE START DATE: 05/01/2024

PERIOD OF PERFORMANCE END DATE: 04/30/2025

AWARD TERMINATION DATE: 05/19/2025

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