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    • 3. 发明授权
    • Process for selective amplification of a full-length cDNA involving an anchor nucleic acid
    • 选择性扩增涉及锚定核酸的全长cDNA的方法
    • US06653108B2
    • 2003-11-25
    • US09989706
    • 2001-11-21
    • Han-Oh ParkJin-Tae JeonMi-Sook Jang
    • Han-Oh ParkJin-Tae JeonMi-Sook Jang
    • C12Q168
    • C12Q1/6806C12N15/1096C12Q1/686C12Q2531/113C12Q2525/191C12Q2521/107
    • The present invention relates to a process for the preparation of full-length complementary DNA (cDNA). More particularly, the present invention is directed to a process for selective amplification of full-length cDNA, which comprises: i) a step for preparing a hybrid composed of a messenger RNA (mRNA) strand and a cDNA strand of which three (3) or four (4) deoxycitidinemono phosphate (dCMP) are combined at 3′ end, by treating mRNA with reverse transcriptase; separately from the above step, ii) a step for adenylating single strand anchor of which biotin or phosphate group is combined at 3′ end, and phosphate group is combined at 5′ end; iii) a step for ligating said adenylated single strand anchor to 3′ end of full-length cDNA strand of said cDNA/mRNA hybrid to select full-length cDNA/mRNA hybrid; and iv) a step for amplifying only the full-length cDNA/mRNA hybrid through polymerase chain reaction (PCR) which employs a primer of which base sequence is complementary to that of said anchor.
    • 本发明涉及一种制备全长互补DNA(cDNA)的方法。 更具体地,本发明涉及全长cDNA的选择性扩增方法,其包括:i)制备由信使RNA(mRNA)链和cDNA链组成的杂交体的步骤,其中三(3) 或4(4)脱氧皮质素磷酸(dCMP)通过用逆转录酶处理mRNA在3'末端组合; ii)在3'端结合生物素或磷酸基团的单链锚定的腺苷酸化步骤,在5'末端结合磷酸基; iii)将所述腺苷酸化的单链锚定于所述cDNA / mRNA杂交体的全长cDNA链的3'末端以选择全长cDNA / mRNA杂交体的步骤; 和iv)通过聚合酶链式反应(PCR)仅扩增全长cDNA / mRNA杂交体的步骤,其使用与所述锚的碱基序列互补的引物。