24 research outputs found
The use of functional genomics for the identification of the gene cluster encoding for the biosynthesis of the antifungal tambjamine in the marine bacterium Pseudoalteromonas tunicata
A large insert library was created in Escherichia coli from the DNA of the surface-associated marine bacterium Pseudoalteromonas tunicata. Screening of the library for antifungal activity resulted in the detection and identification of a large gene cluster encoding for the biosynthesis of an antifungal tambjamine. A biosynthetic pathway has been proposed based on analysis and annotation of the gene cluster
Total syntheses of tambjamines C, E, F, G, H, I and J, BE-18591, and a related alkaloid from the marine bacterium Pseudoalteromonas tunicata
The acetate salts of tambjamines C, E, and F (2-4, respectively), as well as those of the related alkaloids BE-18591 (5) and 6, have been prepared by treatment of bipyrrole aldehyde 16 with the relevant amine in the presence of acetic acid. The 5′-bromc-analogue, 30, of compound 16 has also been prepared and used to obtain the acetate salts of tambjamines G, H, I, and J (8-11 respectively)