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  • Title: Biotin protein ligase from Candida albicans: expression, purification and development of a novel assay.
    Author: Pendini NR, Bailey LM, Booker GW, Wilce MC, Wallace JC, Polyak SW.
    Journal: Arch Biochem Biophys; 2008 Nov 15; 479(2):163-9. PubMed ID: 18809372.
    Abstract:
    Biotin protein ligase (BPL) is an essential enzyme responsible for the activation of biotin-dependent enzymes through the covalent attachment of biotin. In yeast, disruption of BPL affects important metabolic pathways such as fatty acid biosynthesis and gluconeogenesis. This makes BPL an attractive drug target for new antifungal agents. Here we report the cloning, recombinant expression and purification of BPL from the fungal pathogen Candida albicans. The biotin domains of acetyl CoA carboxylase and pyruvate carboxylase were also cloned and characterised as substrates for BPL. A novel assay was established thereby allowing examination of the enzyme's properties. These findings will facilitate future structural studies as well as screening efforts to identify potential inhibitors.
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