| [A] Methanocorpusculum labreanum (strain ATCC 43576 / DSM 4855 / Z) | METLZ01000 | FTHS_METLZ | Hypothetical protein |
| [A] Picrophilus torridus | PICTO01244 | FTHS_PICTO | Formate--tetrahydrofolate ligase |
| [B] Symbiobacterium thermophilum | SYMTH03135 | FTHS_SYMTH | formate-tetrahydrofolate ligase |
| [B] Thermus thermophilus (strain HB27 / ATCC BAA-163 / DSM 7039) | THET201694 | FTHS_THET2 | Formate--tetrahydrofolate ligase |
| [B] Dictyoglomus thermophilum (strain ATCC 35947 / DSM 3960 / H-6-12) | DICT601457 | B5YA74 | Formate--tetrahydrofolate ligase |
| [B] Dictyoglomus turgidum (strain Z-1310 / DSM 6724) | DICTD01568 | B8E336 | Formate--tetrahydrofolate ligase |
| [B] Anaerocellum thermophilum (strain DSM 6725 / Z-1320) | ANATD02099 | FTHS_ANATD | Formate--tetrahydrofolate ligase |
| [B] Alkaliphilus metalliredigens (strain QYMF) | ALKMQ01802 | A6TPR2 | Formate--tetrahydrofolate ligase |
| [B] Clostridium difficile (strain 630) | CLOD600737 | FTHS_CLOD6 | formate--tetrahydrofolate ligase |
| [B] Clostridium kluyveri (strain ATCC 8527 / DSM 555 / NCIMB 10680) | CLOK500405 | FTHS_CLOK5 | Fhs |
| [B] Desulfitobacterium hafniense (strain Y51) | DESHY00602 | FTHS2_DESHY | hypothetical protein similarity to COG2759 Formyltetrahydrofolate synthetase(Evalue: 0) |
| [B] Thermoanaerobacter tengcongensis | THETN02166 | FTHS_THETN | Best Blastp hit = gi|120563|sp|P21164|FTHS_MOOTH FORMATE--TETRAHYDROFOLATE LIGASE (FORMYLTETRAHYDROFOLATE SYNTHETASE) (FHS) (FTHFS) gi|98640|pir||A35942 formate--tetrahydrofolate ligase (EC 6.3.4.3) - Clostridium thermaceticum gi|144816|gb|AAA23240.1| (J02911) formyltetrahydrofolate synthetase (FTHFS) (ttg start codon) (EC 6.3.4.3) [Moorella thermoacetica], score 744, E-value 0 Formyltetrahydrofolate synthetase |
| [B] Coprothermobacter proteolyticus (strain ATCC 35245 / DSM 5265 / BT) | COPPD00980 | B5Y9A5 | Formate--tetrahydrofolate ligase |
| [B] Streptococcus gordonii (strain Challis / ATCC 35105 / CH1 / DL1 / V288) | STRGC01754 | A8AZ67 | Formate--tetrahydrofolate ligase |
| [B] Streptococcus pyogenes (serotype M18) | STRP801745 | FTHS2_STRP8 | best blastp match gb|AAK34738.1| (AE006628) putative formate-tetrahydrofolate ligase [Streptococcus pyogenes M1 GAS] putative formate-tetrahydrofolate ligase |
| [B] Streptococcus pyogenes (serotype M3) | STRP301763 | FTHS2_STRP3 | best blastp hit: gb|AAL98593.1| (AE010116) putative formate-tetrahydrofolate ligase [Streptococcus pyogenes MGAS8232] putative formate-tetrahydrofolate ligase |
| [B] Streptococcus pyogenes (serotype M6) | STRP601760 | FTHS2_STRP6 | Formate--tetrahydrofolate ligase |
| [B] Streptococcus pyogenes serotype M1 | STRP102109 | FTHS2_STRP1 | Formate--tetrahydrofolate ligase 2 |
| [B] Streptococcus pyogenes serotype M12 (strain MGAS2096) | STRPB01793 | FTHS2_STRPB | Formate--tetrahydrofolate ligase |
| [B] Streptococcus pyogenes serotype M12 (strain MGAS9429) | STRPC01774 | FTHS2_STRPC | formate--tetrahydrofolate ligase |
| [B] Streptococcus pyogenes serotype M2 (strain MGAS10270) | STRPD01815 | FTHS2_STRPD | Formate--tetrahydrofolate ligase |
| [B] Streptococcus pyogenes serotype M28 | STRPM01745 | FTHS2_STRPM | formate--tetrahydrofolate ligase |
| [B] Streptococcus pyogenes serotype M4 (strain MGAS10750) | STRPF01850 | FTHS2_STRPF | Formate--tetrahydrofolate ligase |
| [B] Streptococcus pyogenes serotype M49 (strain NZ131) | STRPZ01616 | B5XIX9 | Formate--tetrahydrofolate ligase |
| [B] Streptococcus pyogenes serotype M5 (strain Manfredo) | STRPG01700 | FTHS2_STRPG | Putative formate--tetrahydrofolate ligase 2 |
| [B] Streptococcus sanguinis (strain SK36) | STRSV00410 | ABN43882.1 | Formate--tetrahydrofolate ligase, putative |
| [B] Neisseria gonorrhoeae (strain ATCC 700825 / FA 1090) | NEIG100053 | FTHS_NEIG1 | Best Blastp Hit: pir||E81981 probable formate--tetrahydrofolate ligase (EC 6.3.4.3) NMA0617 [imported] - Neisseria meningitidis (group A strain Z2491) >gi|7379352|emb|CAB83907.1| (AL162753) putative formate--tetrahydrofolate ligase [Neisseria meningitidis] putative formate--tetrahydrofolate ligase |
| [B] Neisseria gonorrhoeae (strain NCCP11945) | NEIG200084 | FTHS_NEIG2 | Putative formate--tetrahydrofolate ligase |
| [B] Neisseria meningitidis serogroup A | NEIMA00549 | FTHS_NEIMA | Putative formate--tetrahydrofolate ligase |
| [B] Neisseria meningitidis serogroup B | NEIMB01696 | FTHS_NEIMB | Formate--tetrahydrofolate ligase |
| [B] Neisseria meningitidis serogroup C (strain 053442) | NEIM000354 | FTHS_NEIM0 | formate--tetrahydrofolate ligase Code: F; COG: COG2759 |
| [B] Neisseria meningitidis serogroup C / serotype 2a (strain ATCC 700532 / FAM18) | NEIMF00341 | FTHS_NEIMF | Putative formate--tetrahydrofolate ligase |
| [B] Actinobacillus pleuropneumoniae serotype 3 (strain JL03) | ACTPJ00465 | B0BTW9 | Putative formate--tetrahydrofolate ligase |
| [B] Actinobacillus pleuropneumoniae serotype 5b (strain L20) | ACTP200461 | FTHS_ACTP2 | Formyltetrahydrofolate synthetase |
| [B] Actinobacillus pleuropneumoniae serotype 7 (strain AP76) | ACTP700525 | FTHS_ACTP7 | Formyltetrahydrofolate synthetase |
| [B] Haemophilus ducreyi | HAEDU01079 | FTHS_HAEDU | putative formate--tetrahydrofolate ligase |
| [B] Psychrobacter sp. (strain PRwf-1) | PSYWF02288 | FTHS_PSYWF | Formate--tetrahydrofolate ligase |
| [B] Vibrio vulnificus | VIBVU03115 | NP_762197.1 | COG2759 Formyltetrahydrofolate synthetase |
| [B] Petrotoga mobilis (strain DSM 10674 / SJ95) | PETMO01688 | FTHS_PETMO | Formate--tetrahydrofolate ligase |
| [B] Thermotoga petrophila (strain RKU-1 / ATCC BAA-488 / DSM 13995) | THEP101041 | FTHS_THEP1 | Formate--tetrahydrofolate ligase |
| [B] Thermotoga sp. (strain RQ2) | THESQ01043 | FTHS_THESQ | Formate--tetrahydrofolate ligase |
| [B] Opitutus terrae (strain DSM 11246 / PB90-1) | OPITP01262 | B1ZR70 | Formate--tetrahydrofolate ligase |
| [B] Akkermansia muciniphila (strain ATCC BAA-835) | AKKM801826 | B2UN63 | Formate--tetrahydrofolate ligase |