This family contains diverse flavoprotein enzymes. This family includes epidermin biosynthesis protein, EpiD Swiss:P30197, which has been shown to be a flavoprotein that binds FMN [1]. This enzyme catalyses the removal of two reducing equivalents from the cysteine residue of the C-terminal meso-lanthionine of epidermin to form a --C==C-- double bond. This family also includes the B chain of dipicolinate synthase a small polar molecule that accumulates to high concentrations in bacterial endospores, and is thought to play a role in spore heat resistance, or the maintenance of heat resistance [2]. dipicolinate synthase catalyses the formation of dipicolinic acid from dihydroxydipicolinic acid. This family also includes phenyl-acrylic acid decarboxylase Swiss:P33751 (EC:4.1.1.-) [3].

1: Purification and characterization of EpiD, a flavoprotein involved in the biosynthesis of the lantibiotic epidermin. Kupke T, Stevanovic S, Sahl HG, Gotz F; J Bacteriol 1992;174:5354-5361. PMID:1644762

2: Cloning, DNA sequence, functional analysis and transcriptional regulation of the genes encoding dipicolinic acid synthetase required for sporulation in Bacillus subtilis. Daniel RA, Errington J; J Mol Biol 1993;232:468-483. PMID:8345520

3: PAD1 encodes phenylacrylic acid decarboxylase which confers resistance to cinnamic acid in Saccharomyces cerevisiae. Clausen M, Lamb CJ, Megnet R, Doerner PW; Gene 1994;142:107-112. PMID:8181743