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The polymerase chain reaction (PCR) is a novel technique that amplifies specific sequences with remarkable efficiency. Repeated cycles of denaturation, primer annealling and extension carried out with the heat stable enzyme, Taq polymerase, leads to exponential increases in the target DNA sequences. The technique has been widely applied in immunology to define HLA polymorphism, T-cell receptor and immunoglobulin diversity, pathogen detection, quantification of lymphokines and lymphoma or leukaemia detection. In addition, it has been very widely applied in all areas of molecular biology and human genetics. Because of its simplicity and sensitivity, PCR represents a major technical development for molecular biologists and will continue to have a great impact on molecular immunology. This review by John Bell describes the basic PCR technique and some variations on it and briefly explores their uses in molecular immunology.

Original publication

DOI

10.1016/0167-5699(89)90193-x

Type

Journal article

Journal

Immunology today

Publication Date

10/1989

Volume

10

Pages

351 - 355

Keywords

Humans, DNA-Directed DNA Polymerase, Taq Polymerase, DNA, Nucleic Acid Amplification Techniques, Polymerase Chain Reaction, Immunologic Techniques, Substrate Specificity