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Protease Regulation by Subtrate O-Glycosylation

ABSTRACT: In this study, we systematically assessed the fine-tuning of limited proteolysis in the extracellular space by glycosylation, one of the most widely observed PTMs, using cells, and applying the Terminal Amine Labeling of Substrates (TAILS) approach, a quantitative proteomics workflow for the system-wide assessment of protein N termini and protease cleavage events in complex biological samples. In addtion, we complement the study with DIA analysis, PRM and glycoproteomics analysis for further validation of the initial observations

INSTRUMENT(S): Q Exactive

ORGANISM(S): Homo Sapiens (human) Bacteria

TISSUE(S): Epithelial Cell

DISEASE(S): Breast Cancer

SUBMITTER: Elizabeta Madzharova

LAB HEAD: Chiara Francavilla

PROVIDER: PXD050644 | Pride | 2024-08-10

REPOSITORIES: Pride

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			Action	DRS
	20210812_FJ_EM_PRM_Ecoli_CTR_210814150612.raw	Raw
	20210812_FJ_EM_PRM_Ecoli_CTSS.raw	Raw
	20210812_FJ_EM_PRM_HEK_CTR.raw	Raw
	20210812_FJ_EM_PRM_HEK_CTSS.raw	Raw
	20211105_KMJ_EM_CD74_Ecoli_CTR_TRYPSIN.raw	Raw

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Publications

Substrate O-glycosylation actively regulates extracellular proteolysis.

Madzharova Elizabeta E Sabino Fabio F Kalogeropoulos Konstantinos K Francavilla Chiara C Auf dem Keller Ulrich U

Protein science : a publication of the Protein Society 20240801 8

Extracellular proteolysis critically regulates cellular and tissue responses and is often dysregulated in human diseases. The crosstalk between proteolytic processing and other major post-translational modifications (PTMs) is emerging as an important regulatory mechanism to modulate protease activity and maintain cellular and tissue homeostasis. Here, we focus on matrix metalloproteinase (MMP)-mediated cleavages and N-acetylgalactosamine (GalNAc)-type of O-glycosylation, two major PTMs of protei ...[more]

PMID: 39074261

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Protease Regulation by Subtrate O-Glycosylation

Project description:In this study, we systematically assessed the fine-tuning of limited proteolysis in the extracellular space by glycosylation, one of the most widely observed PTMs, using cells, and applying the Terminal Amine Labeling of Substrates (TAILS) approach, a quantitative proteomics workflow for the system-wide assessment of protein N termini and protease cleavage events in complex biological samples. In addtion, we complement the study with DIA analysis, PRM and glycoproteomics analysis for further validation of the initial observations.

2024-08-10 | PXD050647 | Pride

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2022-09-03 | PXD027616 | Pride

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2021-09-09 | PXD022756 | Pride

CLIPPER 2.0: Peptide level annotation and data analysis for positional proteomics

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Proteomic data and structure analysis combined reveal interplay of structural rigidity and flexibility on selectivity of cysteine cathepsins

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