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Phlorisovalerophenone synthase (VPS), a novel aromatic polyketide synthase, was purified to homogeneity from 4.2 mg protein extract obtained from hop (Humulus lupulus L.) cone glandular hairs. The enzyme uses isovaleryl-CoA or isobutyryl-CoA and three molecules of malonyl-CoA to form phlorisovalerophenone or phlorisobutyrophenone, intermediates in the(More)
Despite the structural similarities between isocitrate and isopropylmalate, isocitrate dehydrogenase (IDH) exhibits a strong preference for its natural substrate. Using a combination of rational and random mutagenesis, we have engineered IDH to use isopropylmalate as a substrate. Rationally designed mutations were based on comparison of IDH to a similar(More)
A special class of self-assembling peptides has been found to be capable of stabilizing the hydrophobic anticancer agent ellipticine in aqueous solution. Here we study the effect of peptide sequence on the complex formation and its anticancer activity in vitro. Three peptides, EAK16-II, EAK16-IV and EFK16-II, were selected to have either a different charge(More)
Pharmacological regulation of Toll-like receptor (TLR) responses holds great promise in the treatment of many inflammatory diseases. However, there have been limited compounds available so far to attenuate TLR signaling and there have been no clinically approved TLR inhibitors (except the anti-malarial drug hydroxychloroquine) in clinical use. In light of(More)
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