text: *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
  *4.A.4 The PTS Glucitol (Gut) Family
  *4.A.5 The PTS Galactitol (Gat) Family
  *4.A.6 The PTS Mannose-Fructose-Sorbose (Man) Family
  *4.A.7 The PTS L-Ascorbate (L-Asc) Family