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For hybridization and mismatch discrimination, pyrazolo 3,4-d pyrimidine containing oligonucleotides
For hybridization and mismatch discrimination, pyrazolo 3,4-d pyrimidine containing oligonucleotides
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机译:为了杂交和错配识别,使用含吡唑并[3,4-d]嘧啶的寡核苷酸
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摘要
Oligonucleotides in which one or more purine residues are substituted by pyrazolo[3,4-d]pyrimidines exhibit improved hybridization properties. Oligonucleotides containing pyrazolo[3,4-d]pyrimidine base analogues have higher melting temperatures than unsubstituted oligonucleotides of identical sequence. Thus, in assays involving hybridization of an oligonucleotide probe to a target polynucleotide sequence, higher signals are obtained. In addition, mismatch discrimination is enhanced when pyrazolo[3,4-d]pyrimidine-containing oligonucleotides are used as hybridization probes, making them useful as probes and primers for hybridization, amplification and sequencing procedures, particularly those in which single- or multiple-nucleotide mismatch discrimination is required.
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