There are twelve activators of sporulation in Bacillus subtilis and eleven repressors, including Sda.
KinA KinB Spo0A Spo0H (H) Spo0B Spo0F ComA SinI KipA PhrA PhrE PhrH Sda KipI Spo0A ComA SinR RapA, RapB, RapE, and RapH Spo0E, YisI, and YnzD GTP-bound CodY AbrB Hpr DnaA 
