SeqSharp: A general approach for improving cycle-sequencing that facilitates a robust one-step combined amplification...

Area of Science:

• Molecular Biology
• Genomics
• Biotechnology

Background:

• Sanger sequencing typically involves PCR amplification followed by a separate sequencing reaction.
• Excess primers from amplification can interfere with sequencing, necessitating intermediate cleanup steps.
• This interference leads to noisy sequencing data and reduced sequence quality.

Purpose of the Study:

• To develop a method to reduce noise in Sanger sequencing data.
• To improve sequence quality, particularly in combined amplification and sequencing protocols.
• To offer a more robust and efficient sequencing approach.

Main Methods:

• Developed SeqSharp, an enzymatic method to remove chain termination products from amplification primers.
• Applied SeqSharp to Sanger sequencing protocols, including one-step amplification/sequencing.
• Tested the method on bacterial, fungal, and human DNA samples.

Main Results:

• SeqSharp significantly reduces noise in Sanger sequencing data.
• The method improves sequence quality even without an intermediate primer removal step.
• One-step SeqSharp protocols using equimolar primer concentrations yield high-quality sequence data.

Conclusions:

• SeqSharp offers a substantial improvement in Sanger sequencing data quality.
• The one-step SeqSharp protocol is robust, efficient, and broadly applicable across different DNA types.
• This method simplifies the sequencing workflow and enhances data reliability.