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:
Jul. 04, 2000

Filed:

Jun. 30, 1999
Applicant:
Inventors:

Karl Guegler, Menlo Park, CA (US);

Ruoying Tan, Foster City, CA (US);

Michael J Rose, Palo Alto, CA (US);

Assignee:

Incyte Pharmaceuticals Inc., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H / ; C07H / ; C12P / ; C12Q / ;
U.S. Cl.
CPC ...
435 915 ; 435 911 ; 435-6 ; 536 231 ; 536 243 ;
Abstract

Methods are provided for preparing a double-stranded cDNA corresponding to the 5' end of an mRNA. In the subject methods, an mRNA is first contacted with an oligo dT primer under first strand cDNA synthesis conditions. Next, the resultant hybrid is contacted with a random primer under first strand cDNA synthesis conditions, such that a cDNA complementary to the 5' end of the mRNA is produced. The resultant hybrid molecule is converted to two different double-stranded cDNAs, a first cDNA comprising the oligo dT primer and a second cDNA lacking the oligo dT primer. The two double-stranded cDNAs are then separated from each other. The subject methods find use in a variety of applications, and find particular use in the synthesis of 5' enriched cDNA libraries. Also provided are cDNA libraries produced by the subject methods, as well as kits for performing the subject methods.


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