PXD049957

PXD049957 is an original dataset announced via ProteomeXchange.

Title	Phosphoproteomics of consecuively active AKT in liver and Insulin stimulated primary Hepatocytes
Description	Liver mitochondria play a central role in metabolic adaptations to changing nutritional states, yet their dynamic regulation upon anticipated changes in the energy state has remained unaddressed. Here, we show that sensory food perception rapidly induces mitochondrial fission in the liver via protein kinase B/AKT-dependent phosphorylation of serine 131 of the Mitochondrial fission factor (MFFS131), a response mediated via activation of hypothalamic Pro-opiomelanocortin (POMC)-expressing neurons. A non-phosphorylatable MFFS131G knock-in mutation abrogates AKT-induced mitochondrial fragmentation in vitro. In vivo, MFFS131G knock-in mice display altered liver mitochondrial dynamics upon refeeding and impaired insulin stimulated suppression of gluconeogenesis. Collectively, we reveal a critical role for rapid activation of a hypothalamic/liver axis to adapt mitochondrial function to anticipated changes of nutritional state in control of hepatic glucose metabolism. R26-fl-Akt-C mice Mice carrying a conditional myristoylation tagged Akt-C transgene in the ROSA26 locus were used to activate AKT in the liver with a liver specific Cre-dependent virus. The generation of this line has been described previously (V. Kohlhaas et al, 2021) For AAV mediated liver-specific delivery of Cre, R26-fl-Akt-C or control mice were injected with a AAV8-TBG-iCre virus (VB1724, Vector Biolabs). This repository contains two experiments a) Liver of liver active Akt-CA and b) Insulin stimulation of primary heptocytes. Please note that replicate one of the hepatocyte dataset have been removed from the analysis due to the limited number of posphosites compared to others.
HostingRepository	PRIDE
AnnounceDate	2024-10-22
AnnouncementXML	Submission_2024-10-22_06:34:48.581.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Hendrik Nolte
SpeciesList	scientific name: Mus musculus (Mouse); NCBI TaxID: 10090;
ModificationList	phosphorylated residue
Instrument	Orbitrap Exploris 480

Revision	Datetime	Status	ChangeLog Entry
0	2024-02-20 05:53:57	ID requested
1	2024-03-28 06:13:26	announced
⏵ 2	2024-10-22 06:34:49	announced	2024-10-22: Updated project metadata.

Dataset with its publication pending

submitter keyword: Insulin, Hepatocytes,Akt, Liver

Thomas Langer
contact affiliation	Max-Planck-Institute for Biology of Ageing Department of Mitochondrial Proteostasis Joseph-Stelzmann-Str. 9b 50931 Cologne
contact email	tlanger@age.mpg.de
lab head
Hendrik Nolte
contact affiliation	Max Planck Institute for Biology of Ageing, 50931 Cologne, Germany
contact email	h.nolte@age.mpg.de
dataset submitter

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://ftp.pride.ebi.ac.uk/pride/data/archive/2024/03/PXD049957

PRIDE project URI

• PRIDE
  1. PXD049957
     1. Label: PRIDE project
     2. Name: Phosphoproteomics of consecuively active AKT in liver and Insulin stimulated primary Hepatocytes