Effects of co-expressing chaperone bip on functional antibody production in the baculovirus system

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Abstract

TFIIA was extensively purified from a whole-cell transcription extract from yeast. Activity was followed throughout isolation utilizing a functional transcription assay. Transcription activity was found to copurify with polypeptides of 43 and 12.5 kDa, consistent with a previous purification that utilized a TBP/DNA gel mobility shift assay (J. Ranish and S. Hahn, J. Biol. Chem. 266, 19320-19327, 1991). The Stoke′s radius of the purified protein was determined by gel filtration chromatography to be 44 Å under native conditions. The solution molecular weight derived from this measurement, 110 kDa, is consistent with a heterotetrameric structure of TFIIA. © 1994 Academic Press. All rights reserved.

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Hsu, T. A., Eiden, J. J., Bourgarel, P., Meo, T., & Betenbaugh, M. J. (1994). Effects of co-expressing chaperone bip on functional antibody production in the baculovirus system. Protein Expression and Purification, 5(6), 595–603. https://doi.org/10.1006/prep.1994.1082

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