NSF award 2515533 · SUNY at Stony Brook

Collaborative Research: RUI: Life without lipopolysaccharide- Synthesis of ceramide phosphoglycerate

Final report due

29 December 2028

in 803 days · The award ends on 31 August 2028.

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PAPPG 24-1: “at least 45 days prior to the end date”
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award ending 2028-08-31 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out29 Dec 2028in 803 days
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PAPPG 24-1: “financially closed out 120 days after their expiration date”

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NSF lists this award's end date as 31 August 2028.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 29 December 2028.

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Award card

Award number: 2515533
Period of support: 1 Sep 2025 – 31 Aug 2028
Amount: $481,722
Awardee: SUNY at Stony Brook, Stony Brook, NY
Program: Cellular Dynamics and Function
Directorate: BIO

Abstract

Gram-negative bacteria are enclosed by two membranes with different compositions. The outer membrane normally has LPS, a lipid with sugars attached to it. We recently discovered that a model bacterium can survive without LPS if it produces CPG2, a type of ceramide lipid. This shows the importance of ceramides in bacterial biology and provides an opportunity to study alternative modes of outer membrane construction…

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