VEG is a family that is highly conserved among Gram-positive bacteria. It stimulates biofilm formation through inducing transcription of the tapA-sipW-tasA operon. The products of this operon are resposible for production of the amyloid fibre (TasA) component of the biofilm. Veg or a Veg-induced protein acts as an antirepressor of SinR - part of the major overall biofilm transcriptional control system - to regulate and stimulate biofilm formation. Veg is transcribed at high levels during both exponential growth and sporulation [1,2].

1: Transcriptional, functional and cytochemical analyses of the veg gene in Bacillus subtilis. Fukushima T, Ishikawa S, Yamamoto H, Ogasawara N, Sekiguchi J; J Biochem. 2003;133:475-483. PMID:12761295

2: Functional analysis of the protein Veg, which stimulates biofilm formation in Bacillus subtilis. Lei Y, Oshima T, Ogasawara N, Ishikawa S; J Bacteriol. 2013;195:1697-1705. PMID:23378512