Variation in synonymous codon usage in Paenibacillus sp. 32O-W genome.

Area of Science:

• Genomics
• Molecular Biology
• Biotechnology

Background:

• Paenibacillus sp. 32O-W is utilized for petroleum biodesulfurization.
• Genomic G+C content of Paenibacillus sp. 32O-W is 56.34%.

Purpose of the Study:

• To investigate codon usage variation in the Paenibacillus sp. 32O-W genome.
• To identify factors influencing differential codon usage patterns.
• To analyze the impact of codon usage on protein properties.

Main Methods:

• Correspondence analysis of Relative Synonymous Codon Usage (RSCU).
• Identification of gene sets with distinct codon usage patterns.
• Measurement of codon usage indices.
• Analysis of protein properties (hydrophobicity, biosynthetic cost, aggregation propensity).

Main Results:

• Two distinct trends of codon usage variation were identified in the Paenibacillus sp. 32O-W genome.
• Two sets of genes exhibiting different codon usage patterns were determined.
• Significant differences in protein properties, including hydrophobicity and aggregation propensity, were observed between the gene sets.
• Compositional differences and potential gene expressivity influenced protein biosynthetic cost and aggregation propensity.

Conclusions:

• Codon usage variation in Paenibacillus sp. 32O-W is influenced by both mutational bias and translational selection.
• Differential gene expression and compositional variations drive differences in protein properties.
• Understanding codon usage provides insights into bacterial genome evolution and protein characteristics.