PXD056506
PXD056506 is an original dataset announced via ProteomeXchange.
Dataset Summary
| Title | Sirtuin-5 is recruited to hepatic peroxisomes in mice fed dodecanedioic acid but has little impact on the peroxisomal succinylome |
| Description | Lysine succinylation, and its reversal by sirtuin-5 (SIRT5), is known to modulate mitochondrial fatty acid beta-oxidation (FAO). We recently showed that feeding mice dodecanedioic acid, a 12-carbon dicarboxylic acid (DC12) that can be chain-shortened four rounds to succinyl-CoA, drives high-level protein hypersuccinylation in the peroxisome, particularly on peroxisomal FAO enzymes. But the ability of SIRT5 to reverse DC12-induced peroxisomal succinylation, or to regulate peroxisomal FAO in this context, remained unexplored. Here, we showed that feeding DC12 strongly recruits SIRT5 into hepatic peroxisomes. Knocking out SIRT5 impaired peroxisomal FAO as evidenced by reduced 14C-DC12 flux in liver homogenates and elevated levels of partially shortened DC12 catabolites in urine. Further, mass spectrometry revealed a trend toward less peroxisomal protein succinylation in SIRT5 knockout liver. This is consistent with reduced flux of DC12 through the peroxisomal FAO pathway, thereby reducing production of the succinyl-CoA that chemically reacts with lysine residues to produce protein succinylation. Mass spectrometry comparisons of site-level succinylation in wildtype and SIRT5 knockout liver did not reveal any clear pattern of SIRT5 target sites in the peroxisome after DC12 feeding. However, SIRT5 co-immunoprecipitated with 15 peroxisomal proteins including the key peroxisomal FAO enzymes acyl-CoA oxidase-1 and enoyl-CoA/3-hydroxyacyl-CoA dehydrogenase (EHHADH). In vitro, recombinant SIRT5 partially desuccinylated chemically modified recombinant ACOX1a, ACOX1b, and EHHADH. Desuccinylation by SIRT5 had no effect on enzyme activity for ACOX1a and EHHADH. For ACOX1b, SIRT5-mediated desuccinylation decreased activity by about 15%. Possible interpretations of this data are discussed. |
| HostingRepository | MassIVE |
| AnnounceDate | 2024-11-21 |
| AnnouncementXML | Submission_2024-11-21_08:23:38.548.xml |
| DigitalObjectIdentifier | |
| ReviewLevel | Non peer-reviewed dataset |
| DatasetOrigin | Original dataset |
| RepositorySupport | Unsupported dataset by repository |
| PrimarySubmitter | Joanna Bons |
| SpeciesList | scientific name: Mus musculus; common name: house mouse; NCBI TaxID: 10090; |
| ModificationList | Succinyl |
| Instrument | Orbitrap Eclipse |
Dataset History
| Revision | Datetime | Status | ChangeLog Entry |
|---|---|---|---|
| 0 | 2024-10-04 09:47:09 | ID requested | |
| ⏵ 1 | 2024-11-21 08:23:38 | announced |
Publication List
| no publication |
Keyword List
| submitter keyword: Peroxisome, Sirtuin-5, Lysine succinylation, Data-independent acquisition, Fatty acid oxidation, Quantitative proteomics |
Contact List
| Birgit Schilling | |
|---|---|
| contact affiliation | Buck Institute |
| contact email | bschilling@buckinstitute.org |
| lab head | |
| Joanna Bons | |
| contact affiliation | Buck Institute for Research on Aging |
| contact email | jbons@buckinstitute.org |
| dataset submitter | |
Full Dataset Link List
| MassIVE dataset URI |
| Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://massive.ucsd.edu/v08/MSV000096026/ |
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