Rho

Rho analyzes RNA sequencing data to determine how the transcription termination factor Rho influences transcription termination and global gene expression in Bacillus subtilis during the transition to stationary phase.

Key Features:

• Data Integration and Visualization: Integrates RNAseq datasets from Rho+ (overexpressing rho), wild-type (WT), and Δrho (rho knockout) B. subtilis strains to compare genome-wide transcriptional profiles.
• Transcription Termination Analysis: Examines termination efficiency at Rho-sensitive terminators and quantifies transcriptional read-through and antisense transcription across the genome.
• Regulon Impact Assessment: Identifies significant alterations in sense transcription within regulons including AbrB, CodY, and those involved in the stringent response.
• Physiological Correlation: Correlates transcriptional changes with physiological outcomes such as weakening of the stringent response, impaired adaptation to nutrient limitation, and blockade of genetic competence and sporulation.

Scientific Applications:

• Gene Network Analysis: Explore how Rho-mediated transcription termination influences gene networks during bacterial stress responses in Bacillus subtilis.
• Adaptation Studies: Link Rho-dependent termination to pathways essential for survival under nutrient-limited conditions to study bacterial adaptation mechanisms.
• Regulatory Mechanism Elucidation: Map Rho's impact on transcriptional regulation to characterize post-exponential differentiation programs in Gram-positive bacteria.

Methodology:

Process RNAseq data from engineered B. subtilis strains with varying rho expression to identify changes in transcription termination efficiency and global gene expression patterns.