TABLE 1.
Putative 3D equivalent K-channel residues in different heme-copper oxidases
| A. ambivalens | T. thermophilus | P. denitrificans |
|---|---|---|
| Tyr-248* | Tyr-237* | Tyr-280* |
| Ser-319* | Ser-309* | Thr-351* |
| Tyr-283* | Phe-272 | Ile-315 |
| Val-255 | Tyr-244* | – |
| Thr-322* | Thr-312* | Lys-354* |
| Tyr-259* | Tyr-248* | Ser-291* |
| Asn-325* | Thr-315 | Ser-357 |
| Thr-329* | Ser-319 | Thr-361 |
| Ser-272* | Ser-261 | – |
| Val-15 (II) | Glu-15 (II)* | Glu-78 (II)* |
| Glu-8 (II)* | Lys-9 (II) | Thr-72 (II) |
Polar residues likely to be involved in the proton translocation are marked with an asterisk.