Table 3.
The independent test set of 26 transmembrane proteins with known three-dimensional structures. We list the PDB code, the name of the protein and the number of the transmembrane segments
| PDB code | Name | Number of transmembrane segments |
| 1RC2:B | AQUAPORIN Z | 6 |
| 1J4N:A | AQUAPORIN 1 | 6 |
| 1IWG:A | MULTIDRUG EFFLUX TRANSPORTER ACRB | 12 |
| 1NEK:C | SUCCINATE DEHYDROGENASE CYTOCHROME B-556 SUBUNIT | 3 |
| 1NEK:D | SUCCINATE_DEHYDROGENASE HYDROPHOBIC MEMBRANE ANCHOR PROTEIN | 3 |
| 1Q16:C | RESPIRATORY NITRATE REDUCTASE 1 GAMMA CHAIN | 5 |
| 1RH5:B | PREPROTEIN TRANSLOCASE SECE SUBUNIT | 1 |
| 1RH5:C | PREPROTEIN TRANSLOCASE SECBETA SUBUNIT | 1 |
| 1IZL:A | PHOTOSYSTEM II SUBUNIT PSBA | 5 |
| 1IZL:C | PHOTOSYSTEM II SUBUNIT PSBC | 5 |
| 1YCE | ROTOR OF F-TYPE NA+-ATPASE | 2 |
| 2BL2 | ROTOR OF V-TYPE NA+-ATPASE | 4 |
| 1XQF:A | PROBABLE AMMONIUM TRANSPORTER | 11 |
| 1KPL:A | H+/CL- EXCHANGE TRANSPORTER | 14 |
| 1S5L:B | PHOTOSYSTEM II CORE LIGHT HARVESTING PROTEIN | 6 |
| 1S5L:C | PHOTOSYSTEM II CP43 PROTEIN | 6 |
| 1S5L:D | PHOTOSYSTEM II REACTION CENTER D2 PROTEIN | 5 |
| 1S5L:E | CYTOCHROME B559 ALPHA SUBUNIT | 1 |
| 1FX8:A | GLPF GLYCEROL FACILITATOR CHANNEL | 6 |
| 1LNQ:A | MTHK POTTASIUM CHANNEL, CA-GATED | 2 |
| 1MXM:A | MECHANOSENSITIVE CHANNEL PROTEIN | 3 |
| 1Q90:M | CYTOCHROME B6F COMPLEX SUBUNIT PETM | 1 |
| 1VF5:C | CYTOCHROME F | 1 |
| 1K4C:C | POTASSIUM CHANNEL KCSA | 2 |
| 1ZCD:A | NA(+)/H(+) ANTIPORTER 1 | 12 |
| 2A79:B | POTASSIUM VOLTAGE-GATED CHANNEL SUBFAMILY A MEMBER 2 | 6 |