| Q2GKF4 | SYC_ANAPZ | Anaplasma phagocytophilum (strain HZ) | cysS APH_0555 | Detail |
| B2G5S5 | SYC_LACRJ | Lactobacillus reuteri (strain JCM 1112) | cysS LAR_0291 | Detail |
| A4Q9F6 | TTL13_MOUSE | Mus musculus (Mouse) | Ttll13 | Detail |
| Q2G5Q6 | SYC_NOVAD | Novosphingobium aromaticivorans (strain ATCC 700278 / DSM 12444 / CIP 105152 / NBRC 16084 / F199) | cysS Saro_2381 | Detail |
| F7E540 | TTLL7_XENTR | Xenopus tropicalis (Western clawed frog) (Silurana tropicalis) | ttll7 | Detail |
| P57558 | SYC_BUCAI | Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon pisum symbiotic bacterium) | cysS BU487 | Detail |
| Q2W7Y5 | SYC_MAGSA | Magnetospirillum magneticum (strain AMB-1 / ATCC 700264) | cysS amb1236 | Detail |
| A6W6G0 | SYC_KINRD | Kineococcus radiotolerans (strain ATCC BAA-149 / DSM 14245 / SRS30216) | cysS Krad_0911 | Detail |
| A1UMF5 | SYC_MYCSK | Mycobacterium sp. (strain KMS) | cysS Mkms_4823 | Detail |
| Q1B2P3 | SYC_MYCSS | Mycobacterium sp. (strain MCS) | cysS Mmcs_4737 | Detail |