| Q59966 | CYSK_SYNE7 | Synechococcus elongatus (strain PCC 7942) (Anacystis nidulans R2) | srpG Synpcc7942_B2664 pANL40 | Detail |
| Q5XAQ3 | CYSK_STRP6 | Streptococcus pyogenes serotype M6 (strain ATCC BAA-946 / MGAS10394) | cysK M6_Spy1375 | Detail |
| Q6GJF8 | CYSK_STAAR | Staphylococcus aureus (strain MRSA252) | cysK SAR0514 | Detail |
| P9WP55 | CYSK_MYCTU | Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) | cysK1 cysK Rv2334 MTCY98.03 | Detail |
| Q7RYW6 | CYSK_NEUCR | Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) | cys-17 NCU06452 | Detail |
| P9WP54 | CYSK_MYCTO | Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh) | cysK1 cysK MT2397 | Detail |
| O32978 | CYSK_MYCLE | Mycobacterium leprae (strain TN) | cysK ML0839 MLCB22.47 | Detail |
| P0ABK5 | CYSK_ECOLI | Escherichia coli (strain K12) | cysK cysZ b2414 JW2407 | Detail |
| O81155 | CYSKP_SOLTU | Solanum tuberosum (Potato) | | Detail |
| Q9KBZ6 | FOSB_BACHD | Bacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125) | fosB BH1778 | Detail |