Monomeric ion channel

└──Monomeric Voltage-gated ion channel ...

   ├──Voltage-gated sodium channel ...

   │  ├──Nax

   │  └──Sodium channel - type 1 ...

   │     ├──Nav1.1
   │     ├──Nav1.2
   │     ├──Nav1.3
   │     ├──Nav1.4
   │     ├──Nav1.5
   │     ├──Nav1.6
   │     ├──Nav1.7
   │     ├──Nav1.8
   │     └──Nav1.9

   └──Voltage-gated calcium channel ...

      ├──VGCNL1

      ├──Calcium channel - type 2 ...

      │  ├──Cav2.1
      │  ├──Cav2.2
      │  └──Cav2.3

      ├──Calcium channel - type 3 ...

      │  ├──Cav3.1
      │  ├──Cav3.2
      │  └──Cav3.2

      └──Calcium channel - type 1 ...

         ├──Cav1.1
         ├──Cav1.2
         ├──Cav1.3
         └──Cav1.4