| Role | Gene | Name | |
| Alpha-N-acetylglucosaminidase (EC 3.2.1.50) | No genes | | |
| Beta-hexosaminidase (EC 3.2.1.52) | EX28DRAFT_3443 | | |
| Chitin binding protein | No genes | | |
| Chitinase (EC 3.2.1.14) | EX28DRAFT_1770 | | |
| | EX28DRAFT_2066 | | |
| | EX28DRAFT_2068 | | |
| Chitobiose-specific 6-phospho-beta-glucosidase ChbF (EC 3.2.1.86) | No genes | | |
| Chitobiose-specific regulator ChbR, AraC family | No genes | | |
| Chitodextrinase precursor (EC 3.2.1.14) | No genes | | |
| Glucosamine-6-phosphate deaminase (EC 3.5.99.6) | EX28DRAFT_2297 | | |
| Glucosamine-6-phosphate deaminase [isomerizing], alternative (EC 3.5.99.6) | No genes | | |
| N-Acetyl-D-glucosamine ABC transport system ATP-binding protein | No genes | | |
| N-Acetyl-D-glucosamine ABC transport system, permease protein 1 | No genes | | |
| N-Acetyl-D-glucosamine ABC transport system, permease protein 2 | No genes | | |
| N-Acetyl-D-glucosamine ABC transport system, sugar-binding protein | No genes | | |
| N-Acetyl-D-glucosamine permease 2, possible | No genes | | |
| N-acetyl glucosamine transporter, NagP | No genes | | |
| N-acetylglucosamine kinase of eukaryotic type (EC 2.7.1.59) | No genes | | |
| N-acetylglucosamine regulated methyl-accepting chemotaxis protein | No genes | | |
| N-acetylglucosamine related transporter, NagX | No genes | | |
| N-acetylglucosamine-6-phosphate deacetylase (EC 3.5.1.25) | EX28DRAFT_2298 | | |
| | EX28DRAFT_3191 | | |
| N-acetylglucosamine-6P-responsive transcriptional repressor NagC, ROK family | EX28DRAFT_2299 | | |
| N-acetylglucosamine-regulated TonB-dependent outer membrane receptor | No genes | | |
| N-acetylglucosamine-regulated outer membrane porin | EX28DRAFT_2294 | | |
| PTS system, N-acetylglucosamine-specific IIA component (EC 2.7.1.69) | No genes | | |
| PTS system, N-acetylglucosamine-specific IIB component (EC 2.7.1.69) | EX28DRAFT_2296 | | |
| PTS system, N-acetylglucosamine-specific IIC component (EC 2.7.1.69) | No genes | | |
| PTS system, chitobiose-specific IIA component (EC 2.7.1.69) | No genes | | |
| PTS system, chitobiose-specific IIB component (EC 2.7.1.69) | No genes | | |
| PTS system, chitobiose-specific IIC component (EC 2.7.1.69) | No genes | | |
| Phosphatase NagD predicted to act in N-acetylglucosamine utilization subsystem | EX28DRAFT_2300 | | |
| Predicted N-acetyl-glucosamine kinase 2, ROK family (EC 2.7.1.59) | No genes | | |
| Predicted chitobiose ABC transport system II, permease protein 1 | No genes | | |
| Predicted chitobiose ABC transport system II, permease protein 2 | No genes | | |
| Predicted chitobiose ABC transport system II, sugar-binding protein | No genes | | |
| Predicted chitobiose ABC transport system, permease protein 1 | No genes | | |
| Predicted chitobiose ABC transport system, permease protein 2 | No genes | | |
| Predicted chitobiose ABC transport system, sugar-binding protein | No genes | | |
| Predicted transcriptional regulator of N-Acetylglucosamine utilization, GntR family | No genes | | |
| Predicted transcriptional regulator of N-Acetylglucosamine utilization, LacI family | No genes | | |
| Regulator of chitobiose utilization ChiR, ROK family | No genes | | |
| Transcriptional regulator of chitobiose utilization cluster, AraC family | No genes | | |
| hypothetical oxidoreductase related to N-acetylglucosamine utilization | No genes | | |
| predicted N-acetylglucosamine kinase, glucokinase-like (EC 2.7.1.59) | No genes | | |