Probing Monotopic Phosphoglycosyl Transferases from Complex Cellular Milieu

Monotopic phosphoglycosyl transferase enzymes (monoPGTs) initiate the assembly of prokaryotic glycoconjugates essential for bacterial survival and proliferation. MonoPGTs belong to an expansive superfamily with a diverse and richly annotated sequence space; however, the biochemical roles of most mon...

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Main Authors: Anderson, Alyssa J, Seebald, Leah M, Arbour, Christine A, Imperiali, Barbara
Other Authors: Massachusetts Institute of Technology. Department of Biology
Format: Article
Language:English
Published: American Chemical Society (ACS) 2022
Online Access:https://hdl.handle.net/1721.1/146813
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author Anderson, Alyssa J
Seebald, Leah M
Arbour, Christine A
Imperiali, Barbara
author2 Massachusetts Institute of Technology. Department of Biology
author_facet Massachusetts Institute of Technology. Department of Biology
Anderson, Alyssa J
Seebald, Leah M
Arbour, Christine A
Imperiali, Barbara
author_sort Anderson, Alyssa J
collection MIT
description Monotopic phosphoglycosyl transferase enzymes (monoPGTs) initiate the assembly of prokaryotic glycoconjugates essential for bacterial survival and proliferation. MonoPGTs belong to an expansive superfamily with a diverse and richly annotated sequence space; however, the biochemical roles of most monoPGTs in glycoconjugate biosynthesis pathways remain elusive. To better understand these critical enzymes, we have implemented activity-based protein profiling (ABPP) probes as protein-centric, membrane protein compatible tools that lay the groundwork for understanding the activity and regulation of the monoPGT superfamily from a cellular proteome. With straightforward gel-based readouts, we demonstrate robust, covalent labeling at the active site of various representative monoPGTs from cell membrane fractions using 3-phenyl-2H-azirine probes.
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spelling mit-1721.1/1468132022-12-10T03:36:35Z Probing Monotopic Phosphoglycosyl Transferases from Complex Cellular Milieu Anderson, Alyssa J Seebald, Leah M Arbour, Christine A Imperiali, Barbara Massachusetts Institute of Technology. Department of Biology Monotopic phosphoglycosyl transferase enzymes (monoPGTs) initiate the assembly of prokaryotic glycoconjugates essential for bacterial survival and proliferation. MonoPGTs belong to an expansive superfamily with a diverse and richly annotated sequence space; however, the biochemical roles of most monoPGTs in glycoconjugate biosynthesis pathways remain elusive. To better understand these critical enzymes, we have implemented activity-based protein profiling (ABPP) probes as protein-centric, membrane protein compatible tools that lay the groundwork for understanding the activity and regulation of the monoPGT superfamily from a cellular proteome. With straightforward gel-based readouts, we demonstrate robust, covalent labeling at the active site of various representative monoPGTs from cell membrane fractions using 3-phenyl-2H-azirine probes. 2022-12-09T17:58:00Z 2022-12-09T17:58:00Z 2022-11-18 2022-12-09T17:47:04Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/146813 Anderson, Alyssa J, Seebald, Leah M, Arbour, Christine A and Imperiali, Barbara. 2022. "Probing Monotopic Phosphoglycosyl Transferases from Complex Cellular Milieu." ACS Chemical Biology, 17 (11). en 10.1021/acschembio.2c00648 ACS Chemical Biology Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf American Chemical Society (ACS) PMC
spellingShingle Anderson, Alyssa J
Seebald, Leah M
Arbour, Christine A
Imperiali, Barbara
Probing Monotopic Phosphoglycosyl Transferases from Complex Cellular Milieu
title Probing Monotopic Phosphoglycosyl Transferases from Complex Cellular Milieu
title_full Probing Monotopic Phosphoglycosyl Transferases from Complex Cellular Milieu
title_fullStr Probing Monotopic Phosphoglycosyl Transferases from Complex Cellular Milieu
title_full_unstemmed Probing Monotopic Phosphoglycosyl Transferases from Complex Cellular Milieu
title_short Probing Monotopic Phosphoglycosyl Transferases from Complex Cellular Milieu
title_sort probing monotopic phosphoglycosyl transferases from complex cellular milieu
url https://hdl.handle.net/1721.1/146813
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