PXD023645

PXD023645 is an original dataset announced via ProteomeXchange.

Title	The strategy of a novel way to enhance bacterial motility
Description	Bacterial motility shows a strong evolvable feature depending on the environment. Hyper-motile E. coli could be isolated by evolving non-motile E. coli due to the mutations that enhanced transcriptional expression of the master regulator of the flagellum biosynthesis, FlhDC. These hyper-motile isolates showed reduced growth fitness but with the molecular mechanisms unrevealed. Here we obtained a novel type of hyper-motile isolates by evolving a weakly-motile E. coli K12 strain on the soft agar plates. These isolates carried high accumulated FlhDC proteins and they shared one single point mutation of ClpXV78F. The V78F affected the ATP binding to ClpX via steric repulsive effect and the mutated ClpXP protease lost most of its ability to degraded FlhDC and some other of its known targets. The signal tag of FlhDC for ClpXP recognition was also characterized. Intriguingly, in the hyper-motile strains, the highly enhanced expression of the motility genes was accompanied by the reduced expression of stress resistance genes relating to the reduced fitness of these isolates. Hence, ClpX appeared to be a novel and hot locus during the evolution of bacterial motility and the molecular mechanism of the trade-off between motility and growth was proposed for the first time.
HostingRepository	PRIDE
AnnounceDate	2021-11-25
AnnouncementXML	Submission_2021-11-25_06:58:19.291.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Bingyu Li
SpeciesList	scientific name: Escherichia coli; NCBI TaxID: 562;
ModificationList	No PTMs are included in the dataset
Instrument	timsTOF Pro

Revision	Datetime	Status	ChangeLog Entry
0	2021-01-18 00:07:13	ID requested
⏵ 1	2021-11-25 06:58:19	announced

Dataset with its publication pending

submitter keyword: Swimming motility

Flagella

ClpX

trade-off

Conghui You
contact affiliation	Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanology, Shenzhen University, Shenzhen, Guangdong, P. R. China
contact email	cyou@szu.edu.cn
lab head
Bingyu Li
contact affiliation	Shenzhen University
contact email	byli@szu.edu.cn
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/2021/11/PXD023645

PRIDE project URI

• PRIDE
  1. PXD023645
     1. Label: PRIDE project
     2. Name: The strategy of a novel way to enhance bacterial motility