The Botrytis cinerea type III polyketide synthase shows unprecedented high catalytic efficiency toward long chain acyl-CoAs
作者:Marimuthu Jeya、Tae-Su Kim、Manish Kumar Tiwari、Jinglin Li、Huimin Zhao、Jung-Kul Lee
DOI:10.1039/c2mb25282a
日期:——
BPKS from Botrytis cinerea is a novel type III polyketide synthase that accepts C4–C18 aliphatic acyl-CoAs and benzoyl-CoA as the starters to form pyrones, resorcylic acids and resorcinols through sequential condensation with malonyl-CoA. The catalytic efficiency (kcat/Km) of BPKS was 2.8 × 105 s−1 M−1 for palmitoyl-CoA, the highest ever reported. Substrate docking analyses addressed the unique features of BPKS such as its high activity and high specificity toward long chain acyl-CoAs.
The present invention relates to N-heterocyclic sulphonamide compounds, in particular pyrazole sulphonamide compounds, and their use as N-myristoyl transferase inhibitors.
本发明涉及N-杂环磺胺化合物,特别是吡唑磺胺化合物,以及它们作为N-肉豆蔻酰转移酶抑制剂的用途。
Expanding the chemical space of polyketides through structure-guided mutagenesis of Vitis vinifera stilbene synthase
作者:Namita Bhan、Brady F. Cress、Robert J. Linhardt、Mattheos Koffas
DOI:10.1016/j.biochi.2015.05.019
日期:2015.8
pharmaceutical properties. Type III polyketide synthases (PKS) that generate aromatic PK polyketides have been studied extensively for their substrate promiscuity and product diversity. Stilbene synthase-like (STS) enzymes are unique in the type III PKS class as they possess a hydrogen bonding network, furnishing them with thioesterase-like properties, resulting in aldol condensation of the polyketide intermediates
A KAS-III Heterodimer in Lipstatin Biosynthesis Nondecarboxylatively Condenses C<sub>8</sub> and C<sub>14</sub> Fatty Acyl-CoA Substrates by a Variable Mechanism during the Establishment of a C<sub>22</sub> Aliphatic Skeleton
作者:Daozhong Zhang、Fang Zhang、Wen Liu
DOI:10.1021/jacs.8b12843
日期:2019.3.6
both long-chain fatty acyl-CoA substrates. This flexibility, along with the characterization of catalytic residues, benefits our investigations into the individual roles of the two KAS-III homologues in the heterodimer-catalyzed reactions. The large subunit LstA contains a characteristic Cys-His-Asn triad and likely reacts with C8 acyl-CoA to form an acyl-Cys enzyme intermediate. In contrast, the small
Lipidic polyketides: We examined the in vitro reactions catalyzed by RpsA, a bacterial typeIIIpolyketidesynthase (PKS) from Rhodospirillum centenum. RpsA is the first typeIII PKS shown to be able to efficiently accept two molecules of extender methylmalonyl‐CoA and to synthesize tetraketide compounds through aldol condensation induced by methine proton abstraction.