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Selective 5′ ligation tagging of RNA

  • US 8,309,335 B2
  • Filed: 02/29/2012
  • Issued: 11/13/2012
  • Est. Priority Date: 08/17/2007
  • Status: Active Grant
First Claim
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1. A kit for generating 5′

  • ligation-tagged RNA from RNA in a sample, wherein the kit comprises an RNA 5′

    polyphosphatase (RPP) comprising the sequence of SEQ ID NO 2 and at least one other component selected from the group consisting of;

    an RNA 5′

    monophosphatase (RMP);

    an alkaline phosphatase (AP);

    a nucleic acid pyrophosphatase;

    a decapping enzyme;

    a capping enzyme;

    an RNA ligase;

    an RNA acceptor oligonucleotide;

    a poly(A) polymerase;

    a poly(U) polymerase;

    an RNA-dependent DNA polymerase (RT);

    a first-strand cDNA synthesis primer;

    an RNase H;

    a second-strand cDNA synthesis primer;

    an RNA polymerase (RNAP);

    5′

    exoribonuclease (Xrn);

    a polynucleotide kinase (PNK); and

    an RNA molecule that has a 5′

    triphosphate or diphosphate group wherein the beta or gamma phosphate of said group is labeled.

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