Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0004461 | molecular_function | lactose synthase activity |
| A | 0005509 | molecular_function | calcium ion binding |
| A | 0005989 | biological_process | lactose biosynthetic process |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE CA A 124 |
| Chain | Residue |
| A | ASP87 |
| A | ASP88 |
| A | HOH140 |
| A | HOH141 |
| A | LYS79 |
| A | ASP82 |
| A | ASP84 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE ZN A 125 |
| Chain | Residue |
| A | GLU49 |
| A | GLU116 |
| A | HOH146 |
| A | HOH147 |
| site_id | AC3 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE SO4 A 139 |
| Chain | Residue |
| A | GLN39 |
| A | ARG70 |
| A | LYS94 |
| A | HOH154 |
| A | HOH217 |
| site_id | CA |
| Number of Residues | 5 |
| Details | |
| Chain | Residue |
| A | LYS79 |
| A | ASP82 |
| A | ASP84 |
| A | ASP87 |
| A | ASP88 |
| site_id | ZN |
| Number of Residues | 1 |
| Details | |
Functional Information from PROSITE/UniProt
| site_id | PS00128 |
| Number of Residues | 19 |
| Details | GLYCOSYL_HYDROL_F22_1 Glycosyl hydrolases family 22 (GH22) domain signature. CdisCdkFlddDItddimC |
| Chain | Residue | Details |
| A | CYS73-CYS91 | |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| A | THR38 | |
| A | GLN39 | |
| A | LEU81 | |
| A | ASP83 | |
| Chain | Residue | Details |
| A | GLU49 | |
| A | GLU116 | |
| Chain | Residue | Details |
| A | LYS79 | |
| A | ASP82 | |
| A | ASP84 | |
| A | ASP87 | |
| A | ASP88 | |
| Chain | Residue | Details |
| A | ASN45 | |
| site_id | SWS_FT_FI5 |
| Number of Residues | 1 |
| Details | CARBOHYD: N-linked (GlcNAc...) asparagine; atypical; partial => ECO:0000269|Ref.9 |
| Chain | Residue | Details |
| A | ASN71 | |
