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Last Updated: November 27, 2021

DrugPatentWatch Database Preview

Patent: 5,849,484

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Summary for Patent: 5,849,484
Title: In vitro assay for inhibitors of the intron self-splicing reaction in Pneumocystis carinii
Abstract:The present invention pertains to an in vitro method for assaying for an inhibitor of the catalytic Group I self-splicing intron reaction in the nuclear rRNA genes of Pheumocystis carinii which comprises the steps of (a) providing a DNA template containing the intron (I) from the 26S rRNA gene in Pneumocystis carinii and a portion of the 5\' and 3\' flanking exons (E1 and E2, respectively) between nucleotides 1963 and 2267 of 26S rRNA (660 nucleotides of amplified rRNA gene including the group I intron); (b) preparing an RNA precursor by transcription of the DNA template in the presence of labeled nucleoside triphosphates to produce a labeled RNA precursor (E1-I-E2); (c) purifying the RNA precursor; (d) incubating the RNA precursor and the inhibitor in the presence of guanosine triphosphate and magnesium ions; and (e) determining the degree of inhibition by the inhibitor on the intron splicing reaction in the RNA precursor by measuring the amount of labeled splicing intermediates and splicing products.
Inventor(s): Leibowitz; Michael J. (Manalpan, NJ), Liu; Yong (Piscataway, NJ)
Assignee: University of Medicine & Dentistry of NJ (Piscataway, NJ)
Application Number:08/491,690
Patent Claims:see list of patent claims

Details for Patent 5,849,484

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Merck Sharp & Dohme Corp. INTRON A interferon alfa-2b For Injection 103132 1986-06-04 ⤷  Try it Free 2039-02-26
Merck Sharp & Dohme Corp. INTRON A interferon alfa-2b For Injection 103132 ⤷  Try it Free 2039-02-26
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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