| Q0I559 | METK_HAES1 | Haemophilus somnus (strain 129Pt) (Histophilus somni) | metK HS_1623 | Detail |
| Q9ZMN5 | METK_HELPJ | Helicobacter pylori (strain J99 / ATCC 700824) (Campylobacter pylori J99) | metK jhp_0183 | Detail |
| Q84MM2 | METK_LITCN | Litchi chinensis (Lychee) | SAMS | Detail |
| A7I771 | METK_METB6 | Methanoregula boonei (strain DSM 21154 / JCM 14090 / 6A8) | mat Mboo_1064 | Detail |
| Q60CG7 | METK_METCA | Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath) | metK MCA0139 | Detail |
| Q56RZ7 | LTMG_EPIFI | Epichloe festucae var. lolii (Neotyphodium lolii) (Acremonium lolii) | ltmG | Detail |
| P47293 | METK_MYCGE | Mycoplasma genitalium (strain ATCC 33530 / G-37 / NCTC 10195) | metK metX MG047 | Detail |
| B8FSB9 | METK_DESHD | Desulfitobacterium hafniense (strain DCB-2 / DSM 10664) | metK Dhaf_3891 | Detail |
| Q1B9F3 | METK_MYCSS | Mycobacterium sp. (strain MCS) | metK Mmcs_2373 | Detail |
| B7UHY9 | METK_ECO27 | Escherichia coli O127:H6 (strain E2348/69 / EPEC) | metK E2348C_3195 | Detail |