| Q2UCU3 | DB00141 | 4iug | NAG | A | 1136 | e4iugA6 | Glycosyl hydrolase domain-like | Glycosyl hydrolase domain | Glycosyl hydrolase domain | BetaGal_dom2 |
| Q2UCU3 | DB00141 | 4iug | NAG | A | 1136 | e4iugA8 | TIM beta/alpha-barrel | TIM barrels | TIM barrels | Glyco_hydro_35 |
| Q2UCU3 | DB00141 | 4iug | NAG | B | 2 | e4iugA3 | jelly-roll | Galactose-binding domain-like | Galactose-binding domain-like | BetaGal_ABD2 |
| Q2UCU3 | DB00141 | 4iug | NAG | B | 2 | e4iugA8 | TIM beta/alpha-barrel | TIM barrels | TIM barrels | Glyco_hydro_35 |
| Q2UCU3 | DB00141 | 4iug | NAG | C | 2 | e4iugA8 | TIM beta/alpha-barrel | TIM barrels | TIM barrels | Glyco_hydro_35 |
| Q2UCU3 | DB00141 | 4iug | NAG | C | 2 | e4iugA9 | Beta-galactosidase LacA, domain 3 | Beta-galactosidase LacA, domain 3 | Beta-galactosidase LacA, domain 3 | BetaGal_dom3 |
| Q2UCU3 | DB00141 | 4iug | NAG | D | 2 | e4iugA10 | jelly-roll | Galactose-binding domain-like | Galactose-binding domain-like | BetaGal_ABD2 |
| Q2UCU3 | DB00141 | 4iug | NAG | E | 2 | e4iugA10 | jelly-roll | Galactose-binding domain-like | Galactose-binding domain-like | BetaGal_ABD2 |
| Q2UCU3 | DB00141 | 4iug | NAG | F | 2 | e4iugA3 | jelly-roll | Galactose-binding domain-like | Galactose-binding domain-like | BetaGal_ABD2 |
| Q2UCU3 | DB00141 | 4iug | NAG | F | 2 | e4iugA8 | TIM beta/alpha-barrel | TIM barrels | TIM barrels | Glyco_hydro_35 |
| Q2UCU3 | DB00141 | 4iug | NAG | G | 9 | e4iugA3 | jelly-roll | Galactose-binding domain-like | Galactose-binding domain-like | BetaGal_ABD2 |
| Q2UCU3 | DB00141 | 4iug | NAG | G | 9 | e4iugA9 | Beta-galactosidase LacA, domain 3 | Beta-galactosidase LacA, domain 3 | Beta-galactosidase LacA, domain 3 | BetaGal_dom3 |