Biotechniques. 1994 Jul;17(1):94, 96, 98-9.

An efficient expression, purification and immunodetection system for recombinant gene products.

Baier G, Baier-Bitterlich G, Couture C, Telford D, Giampa L, Altman A.

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La Jolla Institute for Allergy and Immunology, CA.

Abstract

We describe a modification of the mammalian expression vector pRc/CMV, which drives expression of inserted genes from either the human cytomegalovirus (CMV) immediate-early promoter or the bacteriophage T7 RNA polymerase promoter. The modification is designed to allow expression, simple purification and specific immunodetection of recombinant fusion proteins. The modified plasmid, termed pTag/CMV-neo, encodes a Kozak consensus ribosome-binding site (RBS) and a 30-amino acid fusion tag peptide. This peptide consists of a metal ion-binding site, (His)6, for single-step affinity purification using Ni(2+)-chelating resin and a multi-purpose HIV-1-derived peptide (p18HIV). This viral epitope can be used to identify, detect and characterize target fusion proteins in conjunction with a specific monoclonal antibody H902 that does not display cross-reactivity with cellular proteins. The H902 production hybridoma cell line is reagent #521 from the NIH AIDS Research and Reference Program.

PMID:: 7946324; [PubMed - indexed for MEDLINE]

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An efficient expression, purification and immunodetection system for recombinant gene products.

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