(GenBank) PanD autocleavage accelerator, panothenate auxotrophy. PanM binds to PanD and accelerates PanD autocleavage at Ser25; the PanM(YhhK) function was initially characterized in Salmonella (Tara, 2012). A deletion strain lacking livJ, yhhK and livK requires pantothenate for growth and this requirement is complemented by yhhK alone (Adams, 1990)