Structure based and combinatorially selected oligonucleoside phosphorothioate and phosphorodithioate aptamer targeting AP-1 transcription factors
First Claim
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1. A bead-based method for identifying both thio-modified backbone aptamer sequences and binding proteins comprising the steps of:
- A) incubating a partially thio-modified backbone aptamer bead library with a sample suspected of comprising one or more proteins, wherein each bead of the partially thio-modified backbone aptamer bead library comprises more than one copy of an unique aptamer having a unique sequence and backbone modification;
B) selecting one or more beads from the thio-modified backbone aptamer beads library to which the one or more proteins are bound;
C) identifying the one or more proteins by mass spectrometry;
D) identifying the unique sequence of the thio-modified aptamer; and
E) locating the position of a backbone thio-modification of the unique aptamers comparing said sequence to positions encoded during split synthesis.
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Abstract
The present invention includes composition and methods for making and using a combinatorial library to identify modified thioaptamers that bind to, and affect the immune response of a host animal, transcription factors such as IL-6, NF-κB, AP-1 and the like. Composition and methods are also provided for the treatment of viral infections, as well as, vaccines and vaccine adjuvants are provided that modify host immune responses.
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16 Claims
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1. A bead-based method for identifying both thio-modified backbone aptamer sequences and binding proteins comprising the steps of:
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A) incubating a partially thio-modified backbone aptamer bead library with a sample suspected of comprising one or more proteins, wherein each bead of the partially thio-modified backbone aptamer bead library comprises more than one copy of an unique aptamer having a unique sequence and backbone modification; B) selecting one or more beads from the thio-modified backbone aptamer beads library to which the one or more proteins are bound; C) identifying the one or more proteins by mass spectrometry; D) identifying the unique sequence of the thio-modified aptamer; and E) locating the position of a backbone thio-modification of the unique aptamers comparing said sequence to positions encoded during split synthesis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification