Dynamic Codon Biaser

Dynamic Codon Biaser computes codon usage bias statistics in prokaryotic genomes from NCBI accession numbers or custom sequences by analyzing synonymous codon frequencies in a reference set of 40 highly conserved highly expressed genes (HEGs) to characterize selective and mutational influences.

Key Features:

• Dynamic Calculation: Computes codon bias statistics for supplied NCBI accession numbers and custom sequences rather than relying on a static database.
• Highly Expressed Genes (HEGs): Uses a reference set of 40 highly conserved HEGs across prokaryotes as the basis for bias calculations, leveraging their conservation and high expression levels.
• Comprehensive Output: Generates detailed codon bias statistics and outputs the genome HEG sequences for downstream analysis.

Scientific Applications:

• Evolutionary Studies: Enables analysis of codon usage patterns to infer evolutionary pressures and adaptations in bacterial genomes.
• Phage-Host Predictions: Supports comparison of codon usage between bacteriophages and potential hosts to inform phage–host relationship predictions.
• Functional Genomics: Identifies deviations in codon usage that may indicate functional elements affecting gene expression or protein folding.

Methodology:

Calculates codon usage bias by analyzing the frequency of synonymous codons used in a reference set of 40 highly conserved HEGs; biases are interpreted as reflective of selective pressures and potential mutational influences within the genome.