Xenorhabdus nematophila Transcriptomic Analysis of CpxR and LrhA Regulatory Roles

Transcriptomic analysis reveals opposing regulatory roles of CpxR and LrhA in Xenorhabdus nematophila YL001. Yunfei Han published this research document on figshare in April 2026. The study combines in vitro binding assays, mutant construction, and RNA sequencing to dissect a regulatory cascade fine-tuning Xenocoumacin 1 biosynthesis.

Use Cases

• Analyze regulatory networks for secondary metabolite biosynthesis based on transcriptomic data.
• Study the coordination of flagellar assembly and chemotaxis pathways based on mutant RNA sequencing.
• Investigate protein-DNA binding interactions based on electrophoretic mobility shift assay results.
• Model transcriptional cascades based on the described direct activation and repression relationships.

Strengths

• The description details specific experimental methods, including electrophoretic mobility shift assays and RNA sequencing.
• The research identifies direct binding targets for LrhA and CpxR, such as the promoters of xcnA, lrhA, leuO, and ompR.
• The study establishes a concrete regulatory cascade where CpxR activates lrhA transcription and LrhA represses xcnA expression.

Limitations

• The primary data file is a 6.9 MB DOCX document, which likely contains textual analysis rather than raw tabular data.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for quantitative analysis.

Provenance

Source

figshare

Collection Method

Research combining in vitro protein-DNA binding assays, mutant construction, and transcriptomic analysis.

Freshness

Last updated 2026-04-29 05:57:43; freshness should be verified.