| D7BPX0 | DGD_STRBB | Streptomyces bingchenggensis (strain BCW-1) | SBI_01856 | Detail |
| B5QX61 | HUTU_SALEP | Salmonella enteritidis PT4 (strain P125109) | hutU SEN0735 | Detail |
| Q9Y814 | HTD2_SCHPO | Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast) | htd2 SPBC1105.15c | Detail |
| Q9KZ75 | HUTU_STRCO | Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145) | hutU SCO3073 SCE25.14c | Detail |
| P50038 | CPCF_THEEB | Thermosynechococcus elongatus (strain BP-1) | cpcF tlr1962 | Detail |
| P06770 | NIFB_BRADU | Bradyrhizobium diazoefficiens (strain JCM 10833 / IAM 13628 / NBRC 14792 / USDA 110) | nifB blr1759 | Detail |
| P86397 | HTD2_HUMAN | Homo sapiens (Human) | HTD2 | Detail |
| Q1I3Q8 | HUTU_PSEE4 | Pseudomonas entomophila (strain L48) | hutU PSEEN5097 | Detail |
| B7IF30 | HUTU_THEAB | Thermosipho africanus (strain TCF52B) | hutU THA_189 | Detail |
| Q8U319 | DAPAL_PYRFU | Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1) | dapAL PF0657 | Detail |