Table 3. List of M. xanthus CheB and CheR.
| Protein name | Locus tag (MXAN_) | Refseq | Length (aa) | Che operon | Functional domains (Pfam) | ||||
| Response regulator receiver domain | CheB methylesterase | CheR methyltransferase, SAM binding domain | Tetratricopeptide repeat | ||||||
| CheB | FrzG | 4139 | ABF92096 | 334 | frz | - | (150 to 330) | - | - |
| CheB3 | 5145 | ABF91845 | 352 | che3 | (7 to 118) | (162 to 342) | - | - | |
| CheB5 | 6028 | ABF91242 | 355 | che5 | (9 to 122) | (160 to 338) | - | - | |
| CheB6 | 6952 | ABF89213 | 353 | che6 | (8 to 115) | (166 to 346) | - | ||
| CheB7 | 6959 | ABF87336 | 348 | che7 | (9 to 121) | (163 to 346) | - | - | |
| CheB8 | 4752 | ABF87312 | 345 | che8 | (9 to 120) | (157 to 340) | - | - | |
| CheBa | 714 | ABF90117 | 185 | - | - | (6 to 164) | - | - | |
| CheR | FrzF | 4138 | ABF86899 | 593 | frz | - | - | (1 to 61) (74 to 270) ** | (427 to 491) (496 to 556) |
| CheR3 | 5144 | ABF87122 | 440 | che3 | - | - | (69 to 262) | (358 to 406) | |
| CheR4 | 2682 | ABF89636 | 485 | che4 | - | - | (74 to 256) | (357 to 419) | |
| CheR5 | 6031 | ABF88773 | 413 | che5 | - | - | (72 to 250) | - | |
| CheR6 | 6948 | ABF86317 | 569 | che6 | - | - | (73 to 255) | (467 to 535) | |
| CheR7 | 6960 | ABF89444 | 273 | che7 | - | - | (77 to 267) | - | |
| CheR8 | 4753 | ABF90193 | 290 | che8 | (82 to 278) | - | |||
| CheRa | 7103 | ABF86029 | 346 | - | - | - | (144 to 334) | - | |
| CheRb | 713 | ABF91568 | 278 | - | - | - | (13 to 68) (81 to 270)** | - | |
| CheRc | 2243 | ABF89894 | 242 | - | - | - | (47 to 141)* | - | |
| CheRd | 2245 | ABF91524 | 401 | - | - | - | (72 to 182)* | - | |
* incomplete CheR domain.
** CheR short Nter domain + CheR S-adenosyl-L-methionine binding domain.