Table 6. Amino Acid Residues Contributing to the Predicted Binding Site in Each Respective Transmembrane Helix (TM).
| TM | OATP1B1 | OATP1B3 | OATP2B1 |
|---|---|---|---|
| 2 | LEU78 | LEU78 | THR99 |
| 4 | VAL189 | VAL189 | GLN207 |
| 5 | ASN213 | ASN213 | PHE231 |
| 5 | ALA216 | GLY216 | THR234 |
| 5 | MET217 | MET217 | MET235 |
| 7 | GLN348 | GLN348 | LEU383 |
| 7 | VAL349 | VAL349 | SER384 |
| 7 | TYR352 | PHE352 | ALA387 |
| 7 | PHE356 | PHE356 | ALA391 |
| 8 | ILE385 | THR385 | SER420 |
| 10 | ALA549 | ALA549 | CYS576 |
| 10 | GLY552 | GLY552 | HIS579 |
| 11 | MET577 | MET577 | MET604 |
| 11 | ARG580 | ARG580 | ARG607 |