Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0003824 | molecular_function | catalytic activity |
| A | 0004553 | molecular_function | hydrolase activity, hydrolyzing O-glycosyl compounds |
| A | 0004565 | molecular_function | beta-galactosidase activity |
| A | 0005975 | biological_process | carbohydrate metabolic process |
| A | 0005990 | biological_process | lactose catabolic process |
| A | 0009341 | cellular_component | beta-galactosidase complex |
| A | 0016798 | molecular_function | hydrolase activity, acting on glycosyl bonds |
| A | 0030246 | molecular_function | carbohydrate binding |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 8 |
| Details | binding site for residue ACT A 1101 |
| Chain | Residue |
| A | PRO46 |
| A | ALA47 |
| A | ARG421 |
| A | HOH1226 |
| A | HOH1228 |
| A | HOH1285 |
| A | HOH1505 |
| A | HOH2130 |
| site_id | AC2 |
| Number of Residues | 2 |
| Details | binding site for residue ACT A 1102 |
| Chain | Residue |
| A | ARG339 |
| A | HIS337 |
| site_id | AC3 |
| Number of Residues | 2 |
| Details | binding site for residue ACT A 1103 |
| Chain | Residue |
| A | ARG635 |
| A | GLY700 |
| site_id | AC4 |
| Number of Residues | 3 |
| Details | binding site for residue ACT A 1104 |
| Chain | Residue |
| A | ARG57 |
| A | LEU58 |
| A | SER59 |
| site_id | AC5 |
| Number of Residues | 5 |
| Details | binding site for residue NA A 1105 |
| Chain | Residue |
| A | ASP207 |
| A | PHE581 |
| A | ASP584 |
| A | HOH1421 |
| A | HOH1729 |
| site_id | AC6 |
| Number of Residues | 5 |
| Details | binding site for residue MLI A 1106 |
| Chain | Residue |
| A | HIS121 |
| A | ARG796 |
| A | ARG815 |
| A | HOH1840 |
| A | HOH1889 |
Functional Information from PROSITE/UniProt
| site_id | PS00608 |
| Number of Residues | 15 |
| Details | GLYCOSYL_HYDROL_F2_2 Glycosyl hydrolases family 2 acid/base catalyst. DKNHASVVMWSlg.NE |
| Chain | Residue | Details |
| A | ASP427-GLU441 | |
| site_id | PS00719 |
| Number of Residues | 26 |
| Details | GLYCOSYL_HYDROL_F2_1 Glycosyl hydrolases family 2 signature 1. NaIRTSHYPphpqFLalaDqlGFYVV |
| Chain | Residue | Details |
| A | ASN362-VAL387 | |
