KCNA4 and Guillain-Barre syndrome: 660, 284, 1070 and 807 respectively) and 18 GBS located near a wide variety of voltage-gated potassium channel subunits, including KCNA3, KCNA4, KCNAB1, KCNC1, KCNH1, KCNH2, KCNH6, KCNK9 and KCNMA1, which play a role in neuronal excitability and neurotransmitter release [49].