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.