| [A] Halobacterium salinarium | HALSA00900 | Q9HQG7 | Cystathionine alpha synthase |
| [A] Halobacterium salinarum (strain ATCC 29341 / DSM 671 / R1) | HALS300936 | B0R510 | Cystathionine synthase/lyase |
| [B] Herpetosiphon aurantiacus (strain ATCC 23779 / DSM 785) | HERA200503 | A9AV79 | Cystathionine gamma-synthase |
| [B] Bacillus clausii (strain KSM-K16) | BACSK01933 | Q5WGM5 | cystathionine gamma-synthase |
| [B] Bacillus licheniformis (strain DSM 13 / ATCC 14580) | BACLD02704 | Q65GU1 | Cys/Met metabolism pyridoxal-phosphate-dependent enzymes; Biological Process: amino acid metabolism (GO:0006520@[IEA]; GO:0016829@[IEA]; GO:0030170@[IEA]) cystathionine gamma-lyase YrhB |
| [B] Bacillus pumilus (strain SAFR-032) | BACP202320 | A8FFK9 | Cystathionine beta-lyase |
| [B] Bacillus subtilis | BACSU02723 | MCCB_BACSU | Cystathionine gamma-lyase |
| [B] Oceanobacillus iheyensis | OCEIH01107 | Q8CUJ8 | CDS_ID OB1109 cystathionine beta-lyase |
| [B] Staphylococcus epidermidis (strain ATCC 12228) | STAES02279 | Q8CMR6 | Cystathionine gamma-synthase |
| [B] Staphylococcus epidermidis (strain ATCC 35984 / RP62A) | STAEQ00092 | Q5HRU7 | identified by match to protein family HMM PF01053 trans-sulfuration enzyme family protein |
| [B] Clostridium acetobutylicum | CLOAB00919 | Q97KI9 | Cystathionine gamma-synthase |
| [B] Clostridium kluyveri (strain ATCC 8527 / DSM 555 / NCIMB 10680) | CLOK500948 | A5N6W3 | MetB1 |
| [B] Enterococcus faecalis | ENTFA00267 | C7CWL5 | Cystathionine beta-lyase |
| [B] Lactobacillus delbrueckii subsp. bulgaricus (strain ATCC 11842 / DSM 20081) | LACDA01222 | Q1G9Q2 | Conserved hypothetical protein Putative Cystathionine beta-lyase or Cystathionine gamma-synthase |
| [B] Lactobacillus delbrueckii subsp. bulgaricus (strain ATCC BAA-365) | LACDB01026 | Q049V8 | Cystathionine beta-lyase/cystathionine gamma-synthase |
| [B] Lactobacillus fermentum (strain IFO 3956 / LMG 18251) | LACF300959 | B2GCC7 | Cystathionine beta-lyase |
| [B] Lactobacillus helveticus (strain DPC 4571) | LACH401433 | A8YXP3 | Cystathionine beta-lyase |
| [B] Lactobacillus plantarum | LACPL00209 | Q88ZQ3 | cystathionine beta-lyase |
| [B] Lactococcus lactis subsp. cremoris (strain MG1363) | LACLM01680 | METC_LACLM | Cystathionine beta-lyase |
| [B] Lactococcus lactis subsp. cremoris (strain SK11) | LACLS00725 | Q030I8 | Cystathionine beta-lyase/cystathionine gamma-synthase |
| [B] Lactococcus lactis subsp. lactis | LACLA00760 | METC_LACLA | Cystathionine beta-lyase |
| [B] Streptococcus thermophilus (strain ATCC BAA-250 / LMG 18311) | STRT200785 | Q5M4R1 | cystathionine beta-lyase |
| [B] Streptococcus thermophilus (strain ATCC BAA-491 / LMD-9) | STRTD00717 | Q03L01 | Cystathionine beta-lyase/cystathionine gamma-synthase |
| [B] Streptococcus thermophilus (strain CNRZ 1066) | STRT100813 | Q5M049 | cystathionine beta-lyase |
| [B] Rhodopseudomonas palustris | RHOPA02349 | Q6N7A1 | cystathionine gamma-lyase |
| [B] Rhodospirillum rubrum (strain ATCC 11170 / NCIB 8255) | RHORT00783 | Q2RWA5 | Cystathionine gamma-synthase |
| [B] Helicobacter acinonychis (strain Sheeba) | HELAH01295 | Q17VY8 | cystathionine gamma-synthase High confidence in function and specificity |
| [B] Helicobacter pylori | HELPY00104 | METB_HELPY | similar to GB:L42023 SP:P44502 PID:1003076 PID:1221996 PID:1204344 percent identity: 47.66; identified by sequence similarity; putative cystathionine gamma-synthase (metB) |
| [B] Helicobacter pylori (strain G27) | HELPG00091 | B5Z9N7 | Cystathionine gamma-synthase |
| [B] Helicobacter pylori (strain HPAG1) | HELPH00107 | Q1CV49 | cystathionine gamma-synthase |
| [B] Serratia proteamaculans (strain 568) | SERP501614 | A8GC90 | Cystathionine gamma-synthase |
| [B] Yersinia enterocolitica serotype O:8 / biotype 1B (strain 8081) | YERE801394 | A1JM12 | Putative cystathionine gamma-synthase |
| [B] Coxiella burnetii | COXBU01917 | METC_COXBU | identified by match to PFAM protein family HMM PF03841 cystathionine beta-lyase |
| [B] Coxiella burnetii (strain CbuG_Q212) | COXB201772 | B6J3Q4 | Cystathionine gamma-lyase |
| [B] Coxiella burnetii (strain Dugway 5J108-111) | COXBN01978 | A9KD82 | Putative O-succinylhomoserine (Thiol)-lyase |
| [B] Coxiella burnetii (strain RSA 331 / Henzerling II) | COXBR00050 | A9N9E6 | Putative O-succinylhomoserine (Thiol)-lyase |
| [B] Legionella pneumophila (strain Corby) | LEGPC02324 | A5IG25 | Cystathionine beta-lyase |
| [B] Legionella pneumophila (strain Lens) | LEGPL00919 | Q5WY18 | Similar to cystathionine beta-lyase hypothetical protein |
| [B] Legionella pneumophila (strain Paris) | LEGPA00947 | Q5X6L4 | Similar to cystathionine beta-lyase hypothetical protein |
| [B] Legionella pneumophila subsp. pneumophila (strain Philadelphia 1 / ATCC 33152) | LEGPH00852 | Q5ZX43 | conserved gene cystathionine beta-lyase |
| [B] Pseudomonas fluorescens (strain PfO-1) | PSEPF03237 | Q3KB67 | Cystathionine gamma-synthase |