1u0m

Structural highlights

Function

RPPA_STRCO Involved in the biosynthesis of melanin but also various secondary metabolites containing a naphthoquinone ring. Catalyzes the iterative condensation of five CoA-linked malonyl units to form a pentaketide intermediate. THNS subsequently catalyzes the dual intramolecular Claisen and aldol condensations of this linear intermediate to produce the fused ring of 1,3,6,8-tetrahydroxynaphthalene (THN).^{[1] [2]}

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

References

1. ↑ Izumikawa M, Shipley PR, Hopke JN, O'Hare T, Xiang L, Noel JP, Moore BS. Expression and characterization of the type III polyketide synthase 1,3,6,8-tetrahydroxynaphthalene synthase from Streptomyces coelicolor A3(2). J Ind Microbiol Biotechnol. 2003 Aug;30(8):510-5. PMID:12905073 doi:10.1007/s10295-003-0075-8
2. ↑ Austin MB, Izumikawa M, Bowman ME, Udwary DW, Ferrer JL, Moore BS, Noel JP. Crystal structure of a bacterial type III polyketide synthase and enzymatic control of reactive polyketide intermediates. J Biol Chem. 2004 Oct 22;279(43):45162-74. Epub 2004 Jul 20. PMID:15265863 doi:10.1074/jbc.M406567200