1.C.43 [may be a member] - The Earthworm Lysenin Toxin (Lysenin) Family

   1.C.13 - The Channel-forming Leukocidin Cytotoxin (Ctx) Family
   1.C.14 - The Cytohemolysin (CHL) Family
   1.C.3 - The α-Hemolysin Channel-forming Toxin (αHL) Family
   1.C.4 - The Aerolysin Channel-forming Toxin (Aerolysin) Family
   1.C.5 - The Channel-forming ε-toxin (ε-toxin) Family
   1.C.78 - The Crystal Protein (Cry) Family

Chang A.B., Lin R., Studley W.K., Tran C.V., Saier M.H. Jr. 2004. Phylogeny as a Guide to Structure and Function of Membrane Transport Proteins. Mol Membr Biol. 21(3):171-81.

   2.A.18 - The Amino Acid/Auxin Permease (AAAP) Family
   2.A.3 - The Amino Acid-Polyamine-Organocation (APC) Family
   2.A.30 - The Cation-Chloride Cotransporter (CCC) Family
   2.A.42 - The Hydroxy/Aromatic Amino Acid Permease (HAAAP) Family

Mansour, N.M., Sawhney, M., Tamang, D.G., Vogl, C., Saier, M.H. Jr. 2007. The bile/arsenite/riboflavin transporter (BART) superfamily. FEBS Journal 274(3):612-29.

   2.A.28 - The Bile Acid:Na⁺ Symporter (BASS) Family
   2.A.59 - The Arsenical Resistance-3 (ACR3) Family
   2.A.87 - The Riboflavin Transporter (RFT) Family

   1.C.17 - The Cecropin (Cecropin) Family
   1.C.52 - The Dermaseptin (Dermaseptin) Family
   1.C.62 - The Pseudopleuronectes americanus (flounder) Pleurocidin (Pleurocidin) Family

Chang A.B., Lin R., Studley W.K., Tran C.V., Saier M.H. Jr. 2004. Phylogeny as a Guide to Structure and Function of Membrane Transport Proteins. Mol Membr Biol. 21(3):171-81.

   2.A.36 - The Monovalent Cation:Proton Antiporter-1 (CPA1) Family
   2.A.37 - The Monovalent Cation:Proton Antiporter-2 (CPA2) Family
   3.B.1 - The Na⁺-transporting Carboxylic Acid Decarboxylase (NaT-DC) Family

Diao, J., Lin, Y., Tang, J., and Liang, S. (2003). cDNA sequence analysis of seven peptide toxins from the spider Selenocosmia huwena. Toxicon 42: 715-723.

   8.B.3 - The Huwentoxin-1 (Huwentoxin-1) Family
   8.B.5 - The Na⁺/K⁺/Ca²⁺ Channel Targeting Tarantula Huwentoxin (THT) Family

Prakash S, Cooper G, Singhi S, Saier MH. The ion transporter superfamily. Biochim Biophys Acta. 2003 Dec 3;1618(1):79-92.

   2.A.11 - The Citrate-Mg²⁺:H⁺ (CitM) Citrate-Ca²⁺:H⁺ (CitH) Symporter (CitMHS) Family
   2.A.13 - The C₄-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.56 - The Tripartite ATP-independent Periplasmic Transporter (TRAP-T) Family
   2.A.61 - The C₄-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.8 - The Gluconate:H⁺ Symporter (GntP) Family
   9.B.48 - The Unknown IT-1 (UIT1) Family
   9.B.49 - The Unknown IT-2 (UIT2) Family
   9.B.50 - The Unknown IT-3 (UIT3) Family
   9.B.51 - The Unknown IT-4 (UIT4) Family
   9.B.52 - The Unknown IT-5 (UIT5) Family
   9.B.53 - The Unknown IT-6 (UIT6) Family
   9.B.54 - The Unknown IT-7 (UIT7) Family
   9.B.55 - The Unknown IT-8 (UIT8) Family
   9.B.56 - The Unknown IT-9 (UIT9) Family
   9.B.57 - The Unknown IT-10 (UIT10) Family
   9.B.58 - The Unknown IT-11 (UIT11) Family

Vrljic M, Garg J, Bellmann A, Wachi S, Freudl R, Malecki MJ, Sahm H, Kozina VJ, Eggeling L, Saier MH Jr, Eggeling L, Saier MH Jr. The LysE superfamily: topology of the lysine exporter LysE of Corynebacterium glutamicum, a paradyme for a novel superfamily of transmembrane solute translocators. J Mol Microbiol Biotechnol. 1999 Nov;1(2):327-36.

   2.A.75 - The L-Lysine Exporter (LysE) Family
   2.A.76 - The Resistance to Homoserine/Threonine (RhtB) Family
   2.A.77 - The Cadmium Resistance (CadD) Family

   9.A.2 - The MerTP Mercuric Ion (Hg²⁺) Permease (MerTP) Family
   9.A.7 - The MerF Mercuric Ion (Hg²⁺) Uptake (MerF) Family

Chang A.B., Lin R., Studley W.K., Tran C.V., Saier M.H. Jr. 2004. Phylogeny as a Guide to Structure and Function of Membrane Transport Proteins. Mol Membr Biol. 21(3):171-81.

   2.A.1 - The Major Facilitator Superfamily (MFS)
   2.A.17 - The Proton-dependent Oligopeptide Transporter (POT) Family
   2.A.2 - The Glycoside-Pentoside-Hexuronide (GPH):Cation Symporter Family
   2.A.60 - The Organo Anion Transporter (OAT) Family
   2.A.71 - The Folate-Biopterin Transporter (FBT) Family

   1.B.21 - The OmpG Porin (OmpG) Family
   1.B.26 - The Cyclodextrin Porin (CDP) Family
   1.B.35 - The Oligogalacturonate-specific Porin (KdgM) Family

   1.B.19 - The Glucose-selective OprB Porin (OprB) Family
   1.B.25 - The Outer Membrane Porin (OPr) Family

Chang A.B., Lin R., Studley W.K., Tran C.V., Saier M.H. Jr. 2004. Phylogeny as a Guide to Structure and Function of Membrane Transport Proteins. Mol Membr Biol. 21(3):171-81.

   4.A.5 - The PTS Galactitol (Gat) Family
   4.A.7 - The PTS L-Ascorbate (L-Asc) Family

Chang A.B., Lin R., Studley W.K., Tran C.V., Saier M.H. Jr. 2004. Phylogeny as a Guide to Structure and Function of Membrane Transport Proteins. Mol Membr Biol. 21(3):171-81.

   4.A.1 - The PTS Glucose-Glucoside (Glc) Family
   4.A.2 - The PTS Fructose-Mannitol (Fru) Family
   4.A.3 - The PTS Lactose-N,N'-Diacetylchitobiose-β-glucoside (Lac) Family

   1.C.11 - The Pore-forming RTX Toxin (RTX-toxin) Family
   1.C.57 - The Clostridial Cytotoxin (CCT) Family
   1.C.75 - The Serratia-type Pore-forming Toxin (S-PFT) Family

Chang A.B., Lin R., Studley W.K., Tran C.V., Saier M.H. Jr. 2004. Phylogeny as a Guide to Structure and Function of Membrane Transport Proteins. Mol Membr Biol. 21(3):171-81.

   1.A.1 - The Voltage-gated Ion Channel (VIC) Superfamily
   1.A.2 - Inward Rectifier K⁺ Channel (IRK-C) Family
   1.A.3 - The Ryanodine-Inositol 1,4,5-triphosphate Receptor Ca²⁺ Channel (RIR-CaC) Family
   1.A.4 - The Transient Receptor Potential Ca²⁺ Channel (TRP-CC) Family
   1.A.5 - The Polycystin Cation Channel (PCC) Family
   2.A.38 - The K⁺ Transporter (Trk) Family

   1.B.20 - The Two-Partner Secretion (TPS) Family
   1.B.33 - The Outer Membrane Protein Insertion Porin (OmpIP) Family