| Role | Gene | Name | |
|---|
| 2-ketoglutaric semialdehyde dehydrogenase (EC 1.2.1.26) | No genes | | |
| Acetyl xylan esterase (EC 3.1.1.41) | No genes | | |
| Acetyl xylan esterase XylU (EC 3.1.1.41) | No genes | | |
| Alpha-xylosidase (EC 3.2.1.-) | No genes | | |
| Beta-xylosidase (EC 3.2.1.37) | CCNA_00856 | | |
| | CCNA_01040 | | |
| | CCNA_02442 | | |
| | CCNA_02893 | | |
| D-xylose 1-dehydrogenase (EC 1.1.1.175) | CCNA_00864 | | |
| D-xylose proton-symporter XylE | CCNA_00857 | | |
| D-xylose proton-symporter XylT | No genes | | |
| D-xylose transport ATP-binding protein XylG | No genes | | |
| D-xylose-specific 1-epimerase (mutarotase) | No genes | | |
| Endo-1,4-beta-xylanase A precursor (EC 3.2.1.8) | CCNA_02894 | | |
| | CCNA_03137 | | |
| Endo-1,4-beta-xylanase B ( EC 3.2.1.8 ) | No genes | | |
| Endo-1,4-beta-xylanase C precursor (EC 3.2.1.8) | No genes | | |
| NAD(P)H-dependent D-xylose reductase (EC 1.1.1.-) | No genes | | |
| Novel Xylose regulator from LacI family | No genes | | |
| Phosphotransferase system for xylose-containing disaccharide, EIIA component | No genes | | |
| Phosphotransferase system for xylose-containing disaccharide, EIIB component | No genes | | |
| Phosphotransferase system for xylose-containing disaccharide, EIIC component | No genes | | |
| Phosphotransferase system for xylose-containing disaccharide, EIID component | No genes | | |
| Possible alpha-xyloside ABC transporter, ATP-binding component | No genes | | |
| Possible alpha-xyloside ABC transporter, permease component | No genes | | |
| Possible alpha-xyloside ABC transporter, substrate-binding component | No genes | | |
| Predicted xylose oligosaccharide ABC transporter, substrate-binding component | No genes | | |
| Putative alpha-xylosidase (EC 3.2.1.-) | No genes | | |
| Putative xylulose kinase (EC 2.7.1.17) | No genes | | |
| Xylanase | CCNA_01284 | | |
| | CCNA_02398 | | |
| Xylonate dehydratase (EC 4.2.1.82) | CCNA_00862 | | |
| Xylonolactonase (EC 3.1.1.68) | CCNA_00863 | | |
| Xylose ABC transporter, ATP-binding component | No genes | | |
| Xylose ABC transporter, periplasmic xylose-binding protein XylF | No genes | | |
| Xylose ABC transporter, permease component | No genes | | |
| Xylose ABC transporter, permease protein XylH | No genes | | |
| Xylose ABC transporter, substrate-binding component | No genes | | |
| Xylose activator XylR (AraC family) | No genes | | |
| Xylose isomerase (EC 5.3.1.5) | No genes | | |
| Xylose oligosaccharides ABC transporter, ATP-binding protein 1 | No genes | | |
| Xylose oligosaccharides ABC transporter, ATP-binding protein 2 | No genes | | |
| Xylose oligosaccharides ABC transporter, permease protein 1 | No genes | | |
| Xylose oligosaccharides ABC transporter, permease protein 2 | No genes | | |
| Xylose oligosaccharides ABC transporter, sugar-binding protein | No genes | | |
| Xylose-responsive transcription regulator, ROK family | No genes | | |
| Xyloside transporter XynT | No genes | | |
| Xylulose kinase (EC 2.7.1.17) | No genes | | |
| predicted 2-keto-3-deoxyxylonate dehydratase | CCNA_00866 | | |
| predicted xylose isomerase | No genes | | |