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CODEHOP (COnsensus-DEgenerate Hybrid Oligonucleotide Primer) PCR primer design
Timothy M Rose1, Jorja G Henikoff, Steven Henikoff
1Department of Pathobiology, School of Public Health and Community Medicine, University of Washington, Seattle, WA 98195, USA. trose@u.washington.edu
Nucleic Acids Research
|June 26, 2003
Summary
We developed a new primer design strategy using consensus-degenerate hybrid oligonucleotide primers (CODEHOPs) for PCR amplification. This method efficiently identifies distantly related gene sequences across diverse species.
Area of Science:
- Molecular Biology
- Bioinformatics
Background:
- Polymerase Chain Reaction (PCR) amplification is crucial for gene identification.
- Amplifying distantly related gene sequences presents challenges due to sequence divergence.
Purpose of the Study:
- To develop a novel primer design strategy for amplifying distantly related gene sequences.
- To create an interactive software tool for designing these primers.
Main Methods:
- Developed consensus-degenerate hybrid oligonucleotide primers (CODEHOPs).
- Designed CODEHOPs using conserved amino acid blocks from multiple sequence alignments.
- Utilized a 5' non-degenerate clamp and a 3' degenerate core for primer construction.
Main Results:
- CODEHOP PCR successfully amplified distantly related gene sequences.
- The strategy facilitated the identification and characterization of gene orthologs and paralogs.
- This approach aided in discovering new species, including pathogens.
Conclusions:
- CODEHOPs provide an effective method for PCR amplification of divergent gene sequences.
- The CODEHOP design strategy and software are valuable tools for molecular biology research.
- This approach has broad applications in genomics and microbial identification.
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