| TCID | Name | Organismal Type | Example |
|---|---|---|---|
| 4.A.1.1.1 | Glucose porter (PtsG) (transports D-glucose and α-methyl-D-glucopyranoside) | Bacteria | Glucose IICB - IIA complex of E. coli |
| 4.A.1.1.2 | N-Acetyl glucosamine (NAG) porter (NagE) | Bacteria | NAG IICBA complex of E. coli |
| 4.A.1.1.3 | Maltose porter (MalX) | Bacteria | Maltose IICB complex (MalX) of E. coli |
| 4.A.1.1.4 | The α-glucoside-specific IICB (MalB) (substrates probably include glucosyl-α-fructose disaccharides: trehalurose (α-1,1), turanose (α-1,3), malturose (α-1,4), leucrose (α-1,5) and palatinose (α-1,6)). | Bacteria | The α-glucoside IICB, MalB of Fusobacterium mortiferum |
| 4.A.1.1.5 | N-Acetylglucosamine (NAG) porter (PtsBC1C2)(also may facilitate xylose transport) | Bacteria | The NAG IICC'B complex of Streptomyces olivaceoviridis (IIA not identified) IICNag (PtsC1) IIC'Nag (PtsC2) IIBNag (PtsB) |
| 4.A.1.1.6 | The glucosamine IICBA porter (GamP) (40% identical to 4.A.1.1.2) | Bacteria | GamP of Bacillus subtilis (gi2632521) |
| 4.A.1.1.7 | The N-acetylglucosamine IICB porter (NagP; YflF) (45% identical to 4.A.1.1.2) | Bacteria | NagP of Bacillus subtilis (gi2443228) |
| 4.A.1.1.8 | The maltose IICB porter (MalP; GlvC) (56% identical to 4.A.1.1.4) (Yamamoto et al., 2001). | Bacteria | MalP of Bacillus subtilis (IICBA) (P54715) |
| 4.A.1.1.9 | The glucose IICBA porter (PtsG) 44% identical to 4.A.1.1.1) | Bacteria | PtsG of Bacillus subtilis (P20166) |
| 4.A.1.1.10 | The α-glucoside-specific IICB, AglB (transports glucose, methyl-α-glucoside, maltitol, isomaltose, trehalulose α(1→1), turanose α(1→3), maltulose α(1→4), leucrose α(1→5), and palatinose α(1→6), but not sucrose (most resembles 4.A.1.1.4 and 4.A.1.1.8) (Pikis et al., 2006) | Bacteria | Glucose/α-glucoside IICB complex of Klebsiella pneumoniae (Q9AGA7) |
| 4.A.1.1.11 | The maltose/maltotriose porter, MalT (31% identical to 4.A.1.1.9) (Webb et al., 2007) | Bacteria | MalT IICBA of Streptococcus mutans (Q8DS05) |
| 4.A.1.1.12 | Maltose/Maltotriose PTS transporter, MalT (Shelburne et al., 2008) 631aas (68% identical to 4.A.1.1.11 from S. mutans | Bacteria | MalT IICBA of Streptococcus pyogenes (Q48WG5) |
| 4.A.1.2.1 | Sucrose porter (ScrA) | Bacteria | Sucrose IIBC complex (ScrA) of plasmid pUR400 from Salmonella typhimurium |
| 4.A.1.2.2 | β-Glucoside porter (BglF) | Bacteria | Bgl IIBCA complex of E. coli |
| 4.A.1.2.3 | β-Glucoside [arbutin-salicin-cellobiose] (ASC) porter (AscF) | Bacteria | ASC IICB complex of E. coli |
| 4.A.1.2.4 | Trehalose porter (TreB) | Bacteria | Trehalose IIBC complex of E. coli |
| 4.A.1.2.5 | β-glucoside (methyl-β-glucoside, salicin, arbutin) porter, BglF [a V317A or V317M mutation allows it to transport cellobiose as well] (Kotrba et al., 2003) | Bacteria | β-glucoside IIBCA (BglF) of Corynebacterium glutamicum |
| 4.A.1.2.6 | β-glucoside (Aesculin/arbutin) porter, BglP (Cote et al., 2000; Cote and Honeyman, 2003) | Bacteria | β-glucoside IIBCA (BglP) of Streptococcus mutans (AAF89975) |
| 4.A.1.2.7 | N-Acetylmuramic acid porter, MurP (YfeV) (Dahl et al., 2004) | Bacteria | N-Acetylmuramate IIBC (MurP or YfeV) of E. coli (P77272) |
| 4.A.1.2.8 | Trehalose porter, IIBC (TreP) (38% identical to 4.A.1.2.4) | Bacteria | TreP of Bacillus subtilis (P39794) |
| 4.A.1.2.9 | Sucrose porter, IIBC (SacP) (55% identical to 4.A.1.2.1) | Bacteria | SacP of Bacillus subtilis (P05306) |
| 4.A.1.2.10 | Sucrose porter and regulatory sensor, IIBC (SacX) (43% identical to 4.A.1.2.1) | Bacteria | SacX of Bacillus subtilis (P15400) |
| 4.A.1.2.11 | Aryl β-glucoside porter, IIBCA (BglP; SytA) (35% identical to 4.A.1.2.2) | Bacteria | BglP of Bacillus subtilis (P40739) |
| 4.A.1.2.12 | The sucrose porter, PtsS (regulated by SugR which also regulates other enzymes II) (Engels and Wendisch, 2007) | Bacteria | PtsS (IIBCA) complex of Corynebacterium glutamicum (Q8NMD6) |
