Spatial and temporal cellular assembly of the glycopeptide biosynthetic complex (B01+)

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Balhimycin, a glycopeptide synthesized by Amycolatopsis balhimycina, is a heptapeptide, which is modified by cyclization, methylation, halogenation, and glycosylation. Using genetics and biochemistry, its biosynthetic steps have been elucidated indicating the occurrence of a large multi-enzyme complex that catalyzes amino acid assembly as well as various modifications. Whereas the chronology of the reactions could be defined, nothing is known about the positioning and dynamics of such a super-complex. Protein interaction studies and state-of-the-art microscopy will localize the complexes in the cell, identify further putative interaction partners, and define the temporal assembly of the complex.