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PXD049136-2

PXD049136 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleWidespread prevalence of a post-translational modification in activation of an essential bacterial DNA damage response
DescriptionDNA methylation plays central roles in diverse cellular processes, ranging from error-correction during replication to regulation of bacterial defense mechanisms. Nevertheless, certain aberrant methylation modifications can have lethal consequences. The mechanisms by which bacteria detect and respond to such damage remain incompletely understood. Here, we discover a highly conserved but previously uncharacterized transcription factor (Cada2), which orchestrates a methylation-dependent adaptive response in Caulobacter. This response operates independently of the SOS response, governs the expression of genes crucial for direct repair, and is essential for surviving methylation-induced damage. Our molecular investigation of Cada2 reveals a cysteine methylation-dependent post-translational modification and mode of action distinct from its E. coli counterpart, a trait conserved across all bacteria harboring a Cada2-like homolog instead. Extending across the bacterial kingdom, our findings support the notion of divergence and co-evolution of adaptive response transcription factors and their corresponding sequence-specific DNA motifs. Despite this diversity, the ubiquitous prevalence of adaptive response regulators underscores the significance of a transcriptional switch, mediated by methylation post-translational modification, in driving a specific and essential bacterial DNA damage response.
HostingRepositoryPRIDE
AnnounceDate2024-10-22
AnnouncementXMLSubmission_2024-10-22_06:28:59.754.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterAditya Kamat
SpeciesList scientific name: Caulobacter crescentus (strain NA1000 / CB15N); NCBI TaxID: 565050;
ModificationListmonomethylated residue
InstrumentOrbitrap Fusion
Dataset History
RevisionDatetimeStatusChangeLog Entry
02024-02-03 08:38:15ID requested
12024-02-09 08:31:41announced
22024-10-22 06:29:00announced2024-10-22: Updated project metadata.
Publication List
Dataset with its publication pending
Keyword List
submitter keyword: methylation damage, Adaptive response, DNA repair,DNA damage, bacteria, Caulobacter, SOS response, bacterial PTMs
Contact List
Dr. Anjana Badrinarayanan
contact affiliationNational Centre for Biological Sciences (NCBS), Bangalore, India
contact emailanjana@ncbs.res.in
lab head
Aditya Kamat
contact affiliationNational Centre for Biological Sciences
contact emailadityak@ncbs.res.in
dataset submitter
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Dataset FTP location
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PRIDE project URI
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