involved in the activation of biofilm matrix biosynthetic operons, acts in parallel to [[protein|5A6FBAE6553343092862CB79E150F934978C32A9]], [[protein|E5110D9C36E8C55AFD1419987B14A53232165F20]], and [[protein|D343D2096664A972026D911E7A17A35C7B1CD1C9]]