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. 20, 1999

Filed:

Dec. 09, 1996
Applicant:
Inventors:

Bruce A Beutler, Dallas, TX (US);

Flavia M Bazzoni, Dallas, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ;
U.S. Cl.
CPC ...
435 697 ; 435 691 ; 4353201 ; 435325 ; 435375 ; 435455 ; 530350 ; 536 231 ; 536 235 ;
Abstract

Engineered cell surface receptors are described that are constitutively active in the absence of the cytokine, hormone or molecule that normally activates the receptor. Receptors that constitutively signal are generally created by engineering the receptor to form multimers at the cell surface. Disclosed are various DNA, protein and cellular compositions and methods of making and using such constitutively active receptors. Particular examples are fusion proteins in which the stem, transmembrane domain and cytoplasmic domain are derived from a TNF receptor, and the extracellular, multimerizing domain is derived from an erythropoietin receptor. Transfection of such fusion protein constructs into cells is shown to result in a strong cytotoxic effect.


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