| Role | Gene | Name | |
|---|
| 3-deoxy-D-manno-octulosonic-acid transferase (EC 2.-.-.-) | No genes | | |
| ADP-L-glycero-D-manno-heptose-6-epimerase (EC 5.1.3.20) | b3619 | rfaD | |
| ADP-heptose synthase (EC 2.7.-.-) | b3052 | rfaE | |
| ADP-heptose--lipooligosaccharide heptosyltransferase II (EC 2.4.1.-) | b3620 | rfaF | |
| Beta-1,3-glucosyltransferase | No genes | | |
| Beta-1,4-galactosyltransferase | b3615 | yibD | |
| D-glycero-D-manno-heptose 1,7-bisphosphate phosphatase (EC 3.1.1.-) | b0200 | gmhB | |
| D-glycero-beta-D-manno-heptose 7-phosphate kinase | b3052 | rfaE | |
| Heptosyltransferase family protein, lipopolysaccharide core biosynthesis | No genes | | |
| Lipopolysaccharide 1,2-N-acetylglucosaminetransferase (EC 2.4.1.56) | b3623 | rfaK | |
| Lipopolysaccharide 1,6-galactosyltransferase (EC 2.4.1.-) | b3628 | rfaB | |
| Lipopolysaccharide core biosynthesis glycosyltransferase, group 2 family protein (EC 2.4.1.-) | No genes | | |
| Lipopolysaccharide core biosynthesis protein RfaS | b3629 | rfaS | |
| Lipopolysaccharide core biosynthesis protein RfaY | b3625 | rfaY | |
| Lipopolysaccharide core biosynthesis protein RfaZ | b3624 | rfaZ | |
| Lipopolysaccharide core biosynthesis protein WaaP (EC 2.7.-.-), heptosyl-I-kinase | b3630 | rfaP | |
| Lipopolysaccharide heptosyltransferase I (EC 2.4.1.-) | b3621 | rfaC | |
| Lipopolysaccharide heptosyltransferase III (EC 2.4.1.-) | b3632 | rfaQ | |
| O-antigen ligase | b3622 | rfaL | |
| Phosphoheptose isomerase (EC 5.3.1.-) | b3149 | yraO | |
| Phosphoheptose isomerase 1 (EC 5.3.1.-) | b0222 | lpcA | |
| Phosphoheptose isomerase 2 (EC 5.3.1.-) | No genes | | |
| Putative two-domain glycosyltransferase | No genes | | |
| UDP-galactopyranose mutase (EC 5.4.99.9) | b2036 | glf | |
| UDP-galactose:(galactosyl) LPS alpha1,2-galactosyltransferase WaaW (EC 2.4.1.-) | No genes | | |
| UDP-glucose:(glucosyl)lipopolysaccharide alpha-1,2-glucosyltransferase (EC 2.4.1.58) | No genes | | |
| UDP-glucose:(glucosyl)lipopolysaccharide alpha-1,3-glucosyltransferase WaaO (EC 2.4.1.-) | b3627 | rfaI | |
| UDP-glucose:(heptosyl) LPS alpha1,3-glucosyltransferase WaaG (EC 2.4.1.-) | b3631 | rfaG | |