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. 1992 Jan 20;296(2):179-83.
doi: 10.1016/0014-5793(92)80374-p.

The precursor form of the rat liver non-specific lipid-transfer protein, expressed in Escherichia coli, has lipid transfer activity

B C Ossendorp  1 , T B Geijtenbeek, K W Wirtz
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Free article

The precursor form of the rat liver non-specific lipid-transfer protein, expressed in Escherichia coli, has lipid transfer activity

B C Ossendorp et al. FEBS Lett. .
Free article

Abstract

The cDNA encoding the precursor form of non-specific lipid-transfer protein (pre-nsL-TP) from rat liver was cloned into the expression vector pET3d. The resulting plasmid was transformed to the Escherichia coli strain BL21(DE3). After induction of the bacteria with isopropyl-beta-D-thiogalactopyranoside (IPTG) pre-nsL-TP was purified from the bacterial lysate by anion exchange chromatography followed by gelfiltration. From 11 of culture, 6-7 mg of pre-nsL-TP was obtained, equal to approximately 7% of the cytoplasmic protein. By use of a fluorescence lipid transfer assay, pre-nsL-TP was found to have lipid transfer activity identical to mature nsL-TP.

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