| B2URN8 | CYSD_AKKM8 | Akkermansia muciniphila (strain ATCC BAA-835 / Muc) | cysD Amuc_1299 | Detail |
| Q7NVN6 | CYSD_CHRVO | Chromobacterium violaceum (strain ATCC 12472 / DSM 30191 / JCM 1249 / NBRC 12614 / NCIMB 9131 / NCTC 9757) | cysD CV_2306 | Detail |
| B5Z3B4 | CYSD_ECO5E | Escherichia coli O157:H7 (strain EC4115 / EHEC) | cysD ECH74115_4004 | Detail |
| Q1R7T9 | CYSD_ECOUT | Escherichia coli (strain UTI89 / UPEC) | cysD UTI89_C3123 | Detail |
| Q21IS4 | CYSD_SACD2 | Saccharophagus degradans (strain 2-40 / ATCC 43961 / DSM 17024) | cysD Sde_2145 | Detail |
| Q5PEH1 | CYSD_SALPA | Salmonella paratyphi A (strain ATCC 9150 / SARB42) | cysD SPA2791 | Detail |
| P74893 | DNAG_SYNE7 | Synechococcus elongatus (strain PCC 7942) (Anacystis nidulans R2) | dnaG Synpcc7942_1292 | Detail |
| C1DQ71 | CYSD_AZOVD | Azotobacter vinelandii (strain DJ / ATCC BAA-1303) | cysD Avin_12970 | Detail |
| B3PTD3 | CYSD_RHIE6 | Rhizobium etli (strain CIAT 652) | cysD RHECIAT_CH0001212 | Detail |
| B5F415 | CYSN_SALA4 | Salmonella agona (strain SL483) | cysN SeAg_B3059 | Detail |