A method of synthesizing a cDNA chain using an insoluble carrier having on the surface thereof a polymer substance containing a first unit having a group derived from a phosphoric ester composing the hydrophilic portion of phospholipid, and a second unit having a group derived from carboxylic acid having an electron-attractive substituent bound to a carbonyl group, which includes immobilizing a polynucleotide for DNA elongation; bringing a solution containing an RNA fragment, nucleotide monomers, and a reverse transcriptase or an enzyme having polymerase activity into contact with the surface of the insoluble carrier; and allowing the polynucleotide for DNA elongation immobilized on the surface of the carrier to elongate using the RNA fragment contained in the solution as a template, to thereby form a single-strand cDNA.
一种使用不溶性载体合成 cDNA 链的方法,该不溶性载体的表面具有一种高分子物质,该高分子物质的第一单元具有来自构成
磷脂亲
水部分的
磷酸酯的基团,第二单元具有来自具有与羰基结合的引电子取代基的
羧酸的基团,该方法包括固定用于 DNA 延长的多核苷酸;将含有 RNA 片段、核苷酸单体和逆转录酶或具有聚合酶活性的酶的溶液与不溶性载体的表面接触;并使固定在载体表面的 DNA 延伸多核苷酸以溶液中所含的 RNA 片段为模板延伸,从而形成单链 cDNA。