Multiplex PCR: rapid DNA cycling in a conventional thermal cycler

Area of Science:

• Molecular Biology
• Virology

Background:

• Multiplex PCR amplifies multiple targets simultaneously.
• Optimizing reaction times is crucial for efficiency.

Purpose of the Study:

• To investigate the limits of shortening multiplex PCR duration.
• To optimize a multiplex PCR assay for herpesvirus detection.

Main Methods:

• Utilized the Gene Amp PCR system 9600 thermal cycler.
• Developed a multiplex PCR assay for five herpesviruses (HSV-1, HSV-2, VZV, CMV, EBV).
• Optimized cycling conditions, including 0-second extension times, with Platinum Taq DNA polymerase.

Main Results:

• Reduced total multiplex PCR cycling time to 55 minutes.
• Maintained PCR product yield and assay specificity.
• Identified extension time as a critical parameter for multiplexing six targets.

Conclusions:

• Multiplex PCR duration can be substantially reduced.
• Optimized protocols enable rapid and specific amplification of multiple targets.
• Further optimization for specific apparatus and templates is straightforward.