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  • Title: A T7 expression vector for producing N- and C-terminal fusion proteins with glutathione S-transferase.
    Author: Sharrocks AD.
    Journal: Gene; 1994 Jan 28; 138(1-2):105-8. PubMed ID: 8125285.
    Abstract:
    The pGEX system for protein production in E. coli is widely used in molecular biology. A bacterial expression vector, pETGEXCT, which incorporates features of the pGEX and pET expression systems was designed. pETGEXCT allows the production of N- and C-terminal fusions to glutathione S-transferase (GST) under the tight control of the T7 promoter. Use of this vector can circumvent problems associated with unstable or inactive fusions to the N terminus of GST. Indeed, it is demonstrated that fusions to the N terminus of the eukaryotic DNA-binding protein, RSRFC4, cannot be tolerated. Fusion of RSRFC4 to the N terminus of GST in the pETGEXCT vector is a prerequisite to purify the RSRFC4 DNA-binding domain in an active form using glutathione-agarose affinity chromatography.
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