Table 1.

Genes in the fusarielin (FSL) gene cluster and their proposed function.

Gene Name (Accession Number) [14]	Protein Family	Proposed Function
FSL1 (FGSG_10464)	Polyketide synthase	Reducing PKS; condensation of ten acetate units
FSL2 (FGSG_10463)	Thioesterase	Release of product from FSL1
FSL3 (FGSG_17368)	Aldose 1-epimerase	Epimerization of unknown entry product
FSL4 (FGSG_10461)	Cytochrome P450	Oxygenation of C-15 and C-16
FSL5 (FGSG_17367)	Enoyl reductase	Enoyl reduction at C10=C11 or C12=C13
FSL6 (FGSG_10459)	AMP-binding	Unknown role or not involved in biosynthesis
FSL7 (FGSG_10458)	Transcription factor	Transcriptional regulation of the fusarielin gene cluster

AMP: adenosine monophosphate; PKS: polyketide synthase.