Codon Pattern and Compositional Constraints Determination of Genes Associated with Chronic Periodontitis

Area of Science:

• Genomics
• Evolutionary Biology
• Periodontal Disease Research

Background:

• Genome-wide association studies identified five genes (NIN, ABHD12B, WHAMM, AP3B2, SIGLEC5) associated with chronic periodontitis.
• Understanding the molecular characteristics and evolutionary pressures on these genes is crucial for disease mechanism elucidation.

Purpose of the Study:

• To investigate molecular patterns, including compositional parameters and codon usage.
• To assess the influence of evolutionary forces like mutation and natural selection on these genes.

Main Methods:

• Analysis of gene nucleotide composition (A, G, T, C).
• Evaluation of codon usage bias and identification of preferred codons.
• Assessment of mutational forces and natural selection acting on gene sequences.

Main Results:

• Genes showed a dominance of A and G nucleotides.
• A low codon usage bias was observed, with CTG and TCC being overused.
• AP3B2 and SIGLEC5 preferred GC-ending codons, while NIN, ABHD12B, and WHAMM preferred AT-ending codons.
• Natural selection was found to be the dominant evolutionary force, surpassing mutation, with compositional constraints also playing a role.

Conclusions:

• The study provides insights into the molecular patterns and evolutionary dynamics of genes associated with chronic periodontitis.
• These findings contribute to understanding the genetic basis of the disease and may guide future research for genetic markers.