Competition for cysteine acylation by C16:0 and C18:0 derived lipids is a global phenomenon in the proteome

Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved..

S-acylation is a reversible posttranslational protein modification consisting of attachment of a fatty acid to a cysteine via a thioester bond. Research over the last few years has shown that a variety of different fatty acids, such as palmitic acid (C16:0), stearate (C18:0), or oleate (C18:1), are used in cells to S-acylate proteins. We recently showed that GNAI proteins can be acylated on a single residue, Cys3, with either C16:0 or C18:1, and that the relative proportion of acylation with these fatty acids depends on the level of the respective fatty acid in the cell's environment. This has functional consequences for GNAI proteins, with the identity of the acylating fatty acid affecting the subcellular localization of GNAIs. Unclear is whether this competitive acylation is specific to GNAI proteins or a more general phenomenon in the proteome. We perform here a proteome screen to identify proteins acylated with different fatty acids. We identify 218 proteins acylated with C16:0 and 308 proteins acylated with C18-lipids, thereby uncovering novel targets of acylation. We find that most proteins that can be acylated by C16:0 can also be acylated with C18-fatty acids. For proteins with more than one acylation site, we find that this competitive acylation occurs on each individual cysteine residue. This raises the possibility that the function of many different proteins can be regulated by the lipid environment via differential S-acylation.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:299

Enthalten in:

The Journal of biological chemistry - 299(2023), 9 vom: 25. Sept., Seite 105088

Sprache:

Englisch

Beteiligte Personen:

Nůsková, Hana [VerfasserIn]
Cortizo, Fabiola Garcia [VerfasserIn]
Schwenker, Lena Sophie [VerfasserIn]
Sachsenheimer, Timo [VerfasserIn]
Diakonov, Egor E [VerfasserIn]
Tiebe, Marcel [VerfasserIn]
Schneider, Martin [VerfasserIn]
Lohbeck, Jasmin [VerfasserIn]
Reid, Carissa [VerfasserIn]
Kopp-Schneider, Annette [VerfasserIn]
Helm, Dominic [VerfasserIn]
Brügger, Britta [VerfasserIn]
Miller, Aubry K [VerfasserIn]
Teleman, Aurelio A [VerfasserIn]

Links:

Volltext

Themen:

2V16EO95H1
4ELV7Z65AP
Click chemistry
Cysteine
HRAS
Journal Article
K848JZ4886
LAMTOR1
Lipid
Palmitic Acid
Posttranslational modification
Protein S-acylation
Proteome
Research Support, Non-U.S. Gov't
S-oleoylation
S-palmitoylation
S-stearoylation
Stearic Acids
Stearic acid
Transferrin receptor 1

Anmerkungen:

Date Completed 04.10.2023

Date Revised 04.10.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jbc.2023.105088

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM359951198