| Q1H417 | SYC_METFK | Methylobacillus flagellatus (strain KT / ATCC 51484 / DSM 6875) | cysS Mfla_0500 | Detail |
| Q09647 | TTLL4_CAEEL | Caenorhabditis elegans | ttll-4 ZK1128.6 | Detail |
| Q4A947 | SYC_MYCHJ | Mycoplasma hyopneumoniae (strain J / ATCC 25934 / NCTC 10110) | cysS MHJ_0641 | Detail |
| Q5LIT7 | SYC_BACFN | Bacteroides fragilis (strain ATCC 25285 / DSM 2151 / JCM 11019 / NCTC 9343) | cysS BF0161 | Detail |
| A1TG09 | SYC_MYCVP | Mycolicibacterium vanbaalenii (strain DSM 7251 / JCM 13017 / NRRL B-24157 / PYR-1) (Mycobacterium vanbaalenii) | cysS Mvan_5338 | Detail |
| Q5P1H8 | SYC_AROAE | Aromatoleum aromaticum (strain EbN1) (Azoarcus sp. (strain EbN1)) | cysS AZOSEA27110 ebA4792 | Detail |
| O07045 | SYC_AZOBR | Azospirillum brasilense | cysS | Detail |
| A8I4X6 | SYC_AZOC5 | Azorhizobium caulinodans (strain ATCC 43989 / DSM 5975 / JCM 20966 / NBRC 14845 / NCIMB 13405 / ORS 571) | cysS AZC_1784 | Detail |
| Q6EMB2 | TTLL5_HUMAN | Homo sapiens (Human) | TTLL5 KIAA0998 STAMP | Detail |
| Q98R33 | SYC_MYCPU | Mycoplasma pulmonis (strain UAB CTIP) | cysS MYPU_1770 | Detail |