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    Protein Expr Purif. 1997 Feb;9(1):133-41.

    Variant cDNA sequences of human ATP:citrate lyase: cloning, expression, and purification from baculovirus-infected insect cells.

    Lord KA, Wang XM, Simmons SJ, Bruckner RC, Loscig J, O'Connor B, Bentley R, Smallwood A, Chadwick CC, Stevis PE, Ciccarelli RB.

    Department of Molecular and Cellular Biology, Sterling Winthrop Pharmaceutical Research Division, Collegeville, Pennsylvania 19426, USA.

    ATP:citrate lyase (ACL) is a major generator of cytosolic acetyl-coenzymeA, which is required for both fatty acid and cholesterol biosynthesis. The human ACL (hACL) cDNA was cloned by RT-PCR, and our results indicate the existence of previously unknown sequence variations in hACL. Expression of the hACL cDNA in Spodoptera frugiperda 9 insect cells resulted in the production of high levels of soluble, active enzyme. The recombinant protein (re-hACL) was purified to homogeneity from the soluble lysate of infected cells and was observed to exist as a tetramer by gel filtration chromatography. Kinetic analyses indicated that the re-hACL and rat ACL have very similar enzymological properties. The facile preparation of milligram quantities of purified, active re-hACL affords the opportunity to characterize the enzyme for structure-based design of hypolipidemic drugs, and to further examine the functional significance of the sequence variations.

    PMID: 9116495 [PubMed - indexed for MEDLINE]

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