Genome-wide systematic identification of methyltransferase recognition and modification patterns

Area of Science:

• Genomics
• Epigenetics
• Molecular Biology

Background:

• Single molecule real-time DNA sequencing has increased publicly available methylomes.
• A gap exists in tools linking DNA methylation patterns with their corresponding methyltransferase genes.

Purpose of the Study:

• To develop a high-throughput method for coupling methyltransferases with their specific DNA motifs.
• To characterize methyltransferases and their target sites in bacterial genomes.

Main Methods:

• Automated cloning and analysis of methyltransferases in vectors.
• Utilizing strain-specific cassettes with all potential target sites.
• Genome-wide analysis of methylomes and methyltransferase genes.

Main Results:

• Successfully coupled 23 methyltransferases with their respective motifs.
• Verified the activity of 11 out of 12 identified DNA methylation motifs.
• Characterized methyltransferases from thermophile Moorella thermoacetica and mesophile Acetobacterium woodii.

Conclusions:

• The developed method is effective for high-throughput characterization of methyltransferases and their motifs.
• This approach aids in understanding DNA methylation patterns and enzyme functions in diverse organisms.
• The study provides insights into the methylomes of acetogenic bacteria.