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Additive effects of bovine serum albumin, dithiothreitol and glycerolon PCR
Author(s) -
Nagai Masazumi,
Yoshida Akihide,
Sato Nobuko
Publication year - 1998
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1080/15216549800201172
Subject(s) - dithiothreitol , bovine serum albumin , lysis , glycerol , chemistry , microbiology and biotechnology , dna , albumin , polymerase chain reaction , chromatography , biochemistry , biology , enzyme , gene
The effects of bovine serum albumin, dithiothreitol, and glycerol on PCR were studied. PCR under standard conditions failed the amplification of an enterohemorrhagic E. coli DNA fragment when the boiled bacterial cell lysate was used as the template. The addition of either one of bovine serum albumin, dithiothreitol, or glycerol in the reaction mixture allowed the specific fragment amplification; and the optimum concentrations were as follows: bovine serum albumin, 1 mg/ml; dithiothreitol, 10 mM; and glycerol, 5%. In addition, when all of the three agents were included at the above concentrations, the PCR yeild was further increased. The effect of the three‐agent mixture was not the template specific. Furthermore, the mixture enabled long PCR over 20 kb when Taq DNA polymerase with 3′‐5′ exnuclease activity was used for the amplification. Our simple PCR method allows robust PCR independent of template purity or amplification length.