The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 02, 1998

Filed:

Jul. 25, 1994
Applicant:
Inventors:

Erik Hornes, Oslo, NO;

Lars Korsnes, Oslo, NO;

Assignee:

Dynal AS, Oslo, NO;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12Q / ; C12Q / ; B01J / ;
U.S. Cl.
CPC ...
435 911 ; 435-6 ; 435-5 ; 435 912 ; 4351739 ; 42218601 ; 42218603 ; 204156 ; 204554 ; 436125 ; 436126 ; 536 243 ; 536 2432 ; 536 2433 ;
Abstract

The process includes the steps of: a) contacting a liquid containing mRNA with an insoluble support having DNA probes attached thereto via the 5' -terminus thereof whereby the MRNA is hybridized to said probes and hence to said support; b) removing said liquid; and c) adding enzymes and nucleotides in solution whereby the probe functions as a primer to produce single stranded cDNA on the mRNA probe. The probe DNA may be oligo-dT or a specific DNA sequence, such as one that is complementary to a conserved region in a class of mRNA molecules. The insoluble support comprises magnetic particles which are monodisperse polymer particles comprising superparamagnetic iron oxide, a coating to reduce non-specific binding and a substituent for attaching an oligonucleotide.


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