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.
Patent No.:
Date of Patent:
Jan. 13, 1998
Filed:
Apr. 02, 1997
Michele Pamela Calos, Woodside, CA (US);
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Abstract
The present invention describes an expression vector useful for transfection of a selected mammalian host cell. The vector includes the following components: an Epstein Barr Virus (EBV) family of repeats; a copy of the EBV Nuclear Antigen-1 (EBNA-1) gene that can be functionally expressed in the host cell; a eucaryotic DNA fragment, which provides the ability of the vector to replicate in host cells; and an expression cassette which comprises a promoter functional in said host cell, a coding sequence having 5' and 3' ends, where said coding sequence is functionally linked to said promoter, where said 5' end is adjacent the promoter and said 3' end is adjacent transcription termination sequences. The vector of the present invention is useful in the transfection of mammalian cells, including rodent and human cells. The vector is stably retained and replicates in concert with genomic sequences of the host cell, that is, the vector is typically replicated once per cell cycle. The vector is useful in the follow methods involving mammalian cells: producing proteins, stable transformation, and gene therapy.