PXD051202

PXD051202 is an original dataset announced via ProteomeXchange.

Title	The SPFH complex HflK-HflC regulates aerobic respiration in bacteria
Description	The bacterial HflK-HflC membrane complex is a member of the highly conserved family of SPFH proteins, which are present in all domains of life and include eukaryotic stomatins, flotillins, and prohibitins. These proteins organize cell membranes and are involved in various processes. However, the exact physiological functions of most bacterial SPFH proteins remain unclear. Here, we report that the HflK-HflC complex in Escherichia coli is required for growth under high aeration. The absence of this complex causes an aerobic growth defect due to a reduced abundance of IspG, a crucial enzyme in the isoprenoid biosynthetic pathway. This reduction leads to lower levels of ubiquinone, reduced respiration, lower ATP levels, and misregulated expression of respiratory genes. The regulation of aerobic respiration by the HflK-HflC complex resembles the mitochondrial respiratory defects caused by prohibitin mutations in mammalian and yeast cells, suggesting a functional commonality between these bacterial and eukaryotic SPFH proteins.
HostingRepository	PRIDE
AnnounceDate	2025-02-23
AnnouncementXML	Submission_2025-02-23_15:25:28.029.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Timo Glatter
SpeciesList	scientific name: Escherichia coli; NCBI TaxID: 562;
ModificationList	No PTMs are included in the dataset
Instrument	Q Exactive HF

Revision	Datetime	Status	ChangeLog Entry
0	2024-04-04 13:11:58	ID requested
⏵ 1	2025-02-23 15:25:28	announced

Dataset with its publication pending

submitter keyword: E. coli,Aerobic respiration, isoprenoid biosynthesis, ubiquinone, FtsH, HflK-HflC, prohibitins

Timo Glatter
contact affiliation	Max Planck Institute for terrestrial Microbiology Karl-von-Frisch Str. 10 35043 Marburg Germany
contact email	timo.glatter@mpi-marburg.mpg.de
lab head
Timo Glatter
contact affiliation	Max Planck Institute for Terrestrial Microbiology Marburg
contact email	timo.glatter@mpi-marburg.mpg.de
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD051202
     1. Label: PRIDE project
     2. Name: The SPFH complex HflK-HflC regulates aerobic respiration in bacteria