RibEx

RibEx identifies riboswitches and conserved bacterial regulatory elements in nucleotide sequences to support analysis of bacterial gene regulation.

Key Features:

• Riboswitch Detection: Searches nucleotide sequences for known riboswitches that regulate gene expression by ligand-induced structural changes.
• Prediction of Conserved Regulatory Elements: Predicts conserved bacterial regulatory motifs based on sequence conservation.
• Visual Inspection and Annotation: Maps identified motifs relative to attenuators and open reading frames (ORFs) to support functional annotation.
• Sequence Retrieval and BLAST Submission: Exports sequences of ORFs or regulatory elements for submission to NCBI BLAST for comparative analysis.
• Genome Context Exploration (GeConT): Integrates the Genome Context Tool (GeConT) to analyze genomic contexts of genes regulated by the same element.

Scientific Applications:

• Microbial Genomics: Identification of riboswitches and regulatory elements to study bacterial physiology and pathogenesis.
• Regulatory Network Analysis: Characterization of control mechanisms governing metabolic pathways, stress responses, and virulence factors.
• Evolutionary Comparative Analysis: Comparison of conserved motifs across species to support evolutionary investigations.

Methodology:

Sequence alignment and conservation analysis are used to identify known riboswitches and predict conserved regulatory elements, and integration with NCBI BLAST supports comparative genomics and functional annotation.