Binding and 'pKa' modulation of a polycyclic substrate analogue in a type II polyketide acyl carrier protein
| Autor: | Robert W. Haushalter, Stanley J. Opella, Fabian V. Filipp, Ricky Yu, Kwang-Seuk Ko, Michael D. Burkart |
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| Rok vydání: | 2011 |
| Předmět: |
Models
Molecular Fatty Acid Synthases Stereochemistry Rational design Anthraquinones General Medicine Plasma protein binding Biology Biochemistry Actinorhodin Streptomyces Article chemistry.chemical_compound Polyketide Acyl carrier protein Biosynthesis chemistry biology.protein Acyl Carrier Protein Molecular Medicine Macrolides Polyketide Synthases Protein Binding |
| Zdroj: | ACS chemical biology. 6(5) |
| ISSN: | 1554-8937 |
| Popis: | Type II polyketide synthases are biosynthetic enzymatic pathways responsible for the production of complex aromatic natural products with important biological activities. In these systems, biosynthetic intermediates are covalently bound to a small acyl carrier protein that associates with the synthase enzymes and delivers the bound intermediate to each active site. In the closely related fatty acid synthases of bacteria and plants, the acyl carrier protein acts to sequester and protect attached intermediates within its helices. Here we investigate the type II polyketide synthase acyl carrier protein from the actinorhodin biosynthetic pathway and demonstrate its ability to internalize the tricyclic, polar molecule emodic acid. Elucidating the interaction of acyl carrier proteins with bound analogues resembling late-stage intermediates in the actinorhodin pathway could prove valuable in efforts to engineer these systems toward rational design and biosynthesis of novel compounds. |
| Databáze: | OpenAIRE |
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