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Preparation of templates for DNA sequencing.

B E Slatko¹, P Heinrich, B T Nixon

¹New England Biolabs, Beverly, Massachusetts, USA.

Current Protocols in Molecular Biology

|February 12, 2008

Summary

This guide details DNA preparation protocols for dideoxy sequencing and chemical sequencing applications. It covers M13 phage, lambda phage, and plasmid DNA, optimizing templates for various DNA sequencing methods.

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Generation of High Quality Chromatin Immunoprecipitation DNA Template for High-throughput Sequencing (ChIP-seq)

Generation of High Quality Chromatin Immunoprecipitation DNA Template for High-throughput Sequencing (ChIP-seq)

Published on: April 19, 2013

Area of Science:

Molecular Biology
Genetics
Biochemistry

Background:

Accurate DNA sequencing relies on high-quality template preparation.
Different sequencing methodologies (dideoxy, chemical, thermal cycle) require specific DNA template characteristics.
Recombinant DNA molecules are the primary starting material for sequencing.

Purpose of the Study:

To provide standardized protocols for preparing DNA suitable for various sequencing techniques.
To detail methods for M13 phage, lambda phage, and plasmid DNA preparation.
To optimize DNA template quality for dideoxy sequencing, end labeling, and chemical sequencing.

Main Methods:

Preparation of M13mp-derived phage DNA for large-scale dideoxy sequencing.
Protocol for isolating lambda phage DNA from plate lysates.
Two distinct plasmid DNA miniprep protocols optimized for dideoxy sequencing or end labeling/chemical sequencing, differing in RNA removal.
Alkali denaturation of double-stranded DNA.
Preparation of template for thermal cycle sequencing from phage plaques or bacterial colonies.

Main Results:

Established reliable protocols for M13 phage DNA, a preferred source for large-scale dideoxy sequencing.
Provided a method for lambda phage DNA preparation from plate lysates.
Developed optimized plasmid DNA miniprep protocols catering to specific sequencing needs.
Described alkali denaturation for double-stranded DNA preparation.
Outlined a method for thermal cycle sequencing template preparation.

Conclusions:

The presented protocols offer versatile and reliable methods for preparing DNA templates for diverse sequencing applications.
Standardized DNA preparation enhances the efficiency and accuracy of dideoxy, chemical, and thermal cycle sequencing.
These protocols support both large-scale sequencing projects and specific applications like end labeling.