Multiple-primer DNA sequencing method

Area of Science:

• Molecular Biology
• Virology
• Microbiology

Background:

• Accurate identification and genotyping of microorganisms and viruses are crucial for diagnostics.
• Existing DNA sequencing methods can face challenges with complex samples containing multiple variants or unspecific amplification products.

Purpose of the Study:

• To develop and validate a multiple-primer DNA sequencing approach for improved genotyping and detection.
• To assess the method's efficacy in identifying high-risk oncogenic human papilloma viruses (HPVs) in mixed infections.

Main Methods:

• A pooled multiple-primer DNA sequencing strategy was developed.
• Type-specific primers were designed for high-risk HPV types (HPV-16, 18, 33, 45).
• The method was tested using Pyrosequencing and Sanger dideoxy sequencing on mixed HPV samples.

Main Results:

• Correct genotyping was achieved for all tested combinations of high-risk and low-risk HPV types.
• The multiple-primer approach improved sequence data quality, especially for samples with unspecific amplification products.
• The method demonstrated suitability for selective detection and genotyping of microorganisms.

Conclusions:

• The developed multiple-primer DNA sequencing strategy is effective for accurate genotyping and detection of microorganisms and viruses.
• This method offers enhanced performance for complex samples, including those with mixed infections or unspecific amplification.
• The approach is highly suitable for diagnostic typing applications in microbiology and virology.