METHODS FOR AMPLIFICATION OF NUCLEIC ACIDS ON SOLID SUPPORT

摘要

The present invention provides methods for amplifying a nucleic acid from a mixture of nucleic acids utilizing a solid support. Methods are provided utilizing user-defined primer oligonucleotides for directional amplification. Methods are also provided utilizing blocker and displacer oligonucleotides for generating amplified target nucleic acids of defined length. A sample is applied to the solid support and the target nucleic acid within the sample binds a first oligonucleotide affixed to a solid support. A primer sequence containing a target binding region and a polymerase promoter sequence is annealed to the bound target nucleic acid and extended producing a first duplex nucleic acid. The target sequence is removed leaving a first nucleic acid that binds a second oligonucleotide affixed to a solid support. The second oligonucleotide is extended to produce a second duplex nucleic acid that contains a second nucleic acid. The second nucleic acid is amplified by adding a polymerase.