This model represents the combined B and C domains of the PTS transport system enzyme II specific for N-acetylglucosamine transport. Many of the genes in this family also include an A domain as part of the same polypeptide and thus should be given the name "PTS system, N-acetylglucosamine-specific IIABC component". This family is most closely related to the glucose-specific PTS enzymes. [Transport and binding proteins, Carbohydrates, organic alcohols, and acids]