title: Ion transporter superfamily
text: # Ion transporter superfamily
  
  The ion transporter (IT) superfamily is a superfamily of secondary carriers that transport charged substrates.
  
  ## Families
  
  As of early 2016, the currently recognized and functionally defined families that make up the IT superfamily include:
  
  * 2.A.8 - The $Gluconate:H^+$ Symporter (GntP) Family
  * 2.A.11 - The $Citrate-Mg^{2+}:H^+$ (CitM) $Citrate-Ca^{2+}:H^+$ (CitH) Symporter (CitMHS) Family
  * 2.A.13 - The $C_4-Dicarboxylate$ Uptake (Dcu) Family
  * 2.A.14 - The Lactate Permease (LctP) Family
  * 2.A.34 - The NhaB $Na^+:H^+$ Antiporter (NhaB) Family
  * 2.A.35 - The NhaC $Na^+:H^+$ Antiporter (NhaC) Family
  * 2.A.45 - The Arsenite-Antimonite (ArsB) Efflux Family
  * 2.A.47 - The Divalent $Anion:Na^+$ Symporter (DASS) Family
  * 2.A.61 - The $C_4-dicarboxylate$ Uptake C (DcuC) Family
  * 2.A.62 - The NhaD $Na^+:H^+$ Antiporter (NhaD) Family
  * 2.A.68 - The p-Aminobenzoyl-glutamate Transporter (AbgT) Family
  * 2.A.94 - The Phosphate Permease (Pho1) Family
  * 2.A.101 - The Malonate Uptake (MatC) Family
  * 2.A.111 - The $Na^+/H^+$ Antiporter-E (NhaE) Family
  * 2.A.118 - The Basic Amino Acid Antiporter (ArcD) Family
  