Optimization of protein production in mammalian cells with a coexpressed fluorescent marker.
Publication/Presentation Date
8-1-2004
Abstract
The expression of mammalian proteins in sufficient abundance and quality for structural studies often presents formidable challenges. Many express poorly in bacterial systems, whereas it can be time consuming and expensive to produce them from cells of higher organisms. Here we describe a procedure for the direct selection of stable mammalian cell lines that express proteins of interest in high yield. Coexpression of a marker protein, such as green fluorescent protein, is linked to that of the desired protein through an internal ribosome entry site in the vector that is transfected into cells in culture. The coexpressed marker is used to select for highly expressing clonal cell lines. Applications are described to a membrane protein, the 5HT2c serotonin receptor, and to a secreted cysteine-rich protein, resistin. Besides providing an expeditious means for producing mammalian proteins for structural work, the resulting cell lines also readily support tests of functional properties and structure-inspired hypotheses.
Volume
12
Issue
8
First Page
1355
Last Page
1360
ISSN
0969-2126
Published In/Presented At
Mancia, F., Patel, S. D., Rajala, M. W., Scherer, P. E., Nemes, A., Schieren, I., Hendrickson, W. A., & Shapiro, L. (2004). Optimization of protein production in mammalian cells with a coexpressed fluorescent marker. Structure (London, England : 1993), 12(8), 1355–1360. https://doi.org/10.1016/j.str.2004.06.012
Disciplines
Medicine and Health Sciences | Pediatrics
PubMedID
15296729
Department(s)
Department of Pediatrics
Document Type
Article