Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0005351 | molecular_function | carbohydrate:proton symporter activity |
| A | 0005515 | molecular_function | protein binding |
| A | 0005886 | cellular_component | plasma membrane |
| A | 0008643 | biological_process | carbohydrate transport |
| A | 0015293 | molecular_function | symporter activity |
| A | 0015528 | molecular_function | lactose:proton symporter activity |
| A | 0015767 | biological_process | lactose transport |
| A | 0016020 | cellular_component | membrane |
| A | 0022857 | molecular_function | transmembrane transporter activity |
| A | 0030395 | molecular_function | lactose binding |
| A | 0034219 | biological_process | carbohydrate transmembrane transport |
| A | 0055085 | biological_process | transmembrane transport |
| A | 0071702 | biological_process | organic substance transport |
| A | 1902600 | biological_process | proton transmembrane transport |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE HG A 501 |
| Chain | Residue |
| A | CYS148 |
| A | GLU269 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE HG A 502 |
| Chain | Residue |
| A | PHE21 |
| A | GLY173 |
| A | CYS176 |
| A | ALA177 |
| site_id | AC3 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE HG A 503 |
| Chain | Residue |
| A | PHE356 |
| A | LEU57 |
| A | PRO61 |
| A | CYS355 |
| site_id | AC4 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE HG A 504 |
| Chain | Residue |
| A | CYS333 |
| A | TYR350 |
| A | PHE354 |
| site_id | AC5 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE HG A 505 |
| Chain | Residue |
| A | ILE230 |
| A | CYS234 |
| A | THR235 |
| A | MET365 |
Functional Information from PROSITE/UniProt
| site_id | PS00896 |
| Number of Residues | 15 |
| Details | LACY_1 LacY family proton/sugar symporters signature 1. GLLsDKLGLRKyLLW |
| Chain | Residue | Details |
| A | GLY64-TRP78 | |
| site_id | PS00897 |
| Number of Residues | 15 |
| Details | LACY_2 LacY family proton/sugar symporters signature 2. PlIINRIGgKNALLL |
| Chain | Residue | Details |
| A | PRO280-LEU294 | |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| A | MET1-THR7 | |
| A | GLY71-LYS74 | |
| A | GLU130-PHE140 | |
| A | ALA187-PRO220 | |
| A | ALA279-GLY288 | |
| A | LYS335-SER346 | |
| site_id | SWS_FT_FI2 |
| Number of Residues | 26 |
| Details | TRANSMEM: Helical; Name=1 |
| Chain | Residue | Details |
| A | ASN8-LEU34 | |
| Chain | Residue | Details |
| A | HIS35-SER41 | |
| A | TYR101-LEU104 | |
| A | ILE164-ASN166 | |
| A | PHE250-THR253 | |
| A | ALA309-SER311 | |
| A | SER375-GLY377 | |
| site_id | SWS_FT_FI4 |
| Number of Residues | 28 |
| Details | TRANSMEM: Helical; Name=2 |
| Chain | Residue | Details |
| A | LYS42-LEU70 | |
| site_id | SWS_FT_FI5 |
| Number of Residues | 25 |
| Details | TRANSMEM: Helical; Name=3 |
| Chain | Residue | Details |
| A | TYR75-GLN100 | |
| site_id | SWS_FT_FI6 |
| Number of Residues | 24 |
| Details | TRANSMEM: Helical; Name=4 |
| Chain | Residue | Details |
| A | VAL105-ILE129 | |
| site_id | SWS_FT_FI7 |
| Number of Residues | 22 |
| Details | TRANSMEM: Helical; Name=5 |
| Chain | Residue | Details |
| A | GLY141-THR163 | |
| site_id | SWS_FT_FI8 |
| Number of Residues | 19 |
| Details | TRANSMEM: Helical; Name=6 |
| Chain | Residue | Details |
| A | GLN167-PHE186 | |
| site_id | SWS_FT_FI9 |
| Number of Residues | 28 |
| Details | TRANSMEM: Helical; Name=7 |
| Chain | Residue | Details |
| A | LYS221-SER249 | |
| site_id | SWS_FT_FI10 |
| Number of Residues | 24 |
| Details | TRANSMEM: Helical; Name=8 |
| Chain | Residue | Details |
| A | GLY254-PHE278 | |
| site_id | SWS_FT_FI11 |
| Number of Residues | 19 |
| Details | TRANSMEM: Helical; Name=9 |
| Chain | Residue | Details |
| A | LYS289-PHE308 | |
| site_id | SWS_FT_FI12 |
| Number of Residues | 22 |
| Details | TRANSMEM: Helical; Name=10 |
| Chain | Residue | Details |
| A | ALA312-PHE334 | |
| site_id | SWS_FT_FI13 |
| Number of Residues | 27 |
| Details | TRANSMEM: Helical; Name=11 |
| Chain | Residue | Details |
| A | ALA347-GLU374 | |
| site_id | SWS_FT_FI14 |
| Number of Residues | 20 |
| Details | TRANSMEM: Helical; Name=12 |
| Chain | Residue | Details |
| A | PHE378-PHE398 | |
| Chain | Residue | Details |
| A | THR399-ALA417 | |
| Chain | Residue | Details |
| A | GLU126 | |
| A | ARG144 | |
| Chain | Residue | Details |
| A | GLU269 | |
| Chain | Residue | Details |
| A | ARG302 | |
| A | HIS322 | |
| A | GLU325 | |
