| [A] Methanosphaera stadtmanae (strain DSM 3091) | METST00490 | Q2NGY9 | partially conserved hypothetical protein related to glycosyltransferase |
| [A] Methanocaldococcus jannaschii | METJA01287 | Y1255_METJA | Uncharacterized glycosyltransferase MJ1255 |
| [A] Methanococcus aeolicus (strain Nankai-3 / ATCC BAA-1280) | META300810 | A6UV81 | Glycosyltransferase 28 domain-containing protein |
| [A] Methanococcus maripaludis | METMP00403 | Q6M068 | Conserved hypothetical Archael protein |
| [A] Methanococcus maripaludis (strain C5 / ATCC BAA-1333) | METM501215 | A4FZ99 | Glycosyltransferase 28, C-terminal domain |
| [A] Methanococcus maripaludis (strain C6 / ATCC BAA-1332) | METM600497 | A9A6P6 | Glycosyltransferase 28 domain |
| [A] Methanococcus maripaludis (strain C7 / ATCC BAA-1331) | METM701389 | A6VJ38 | Glycosyltransferase 28 domain |
| [A] Methanococcus vannielii (strain SB / ATCC 35089 / DSM 1224) | METVS01356 | A6US16 | Glycosyltransferase 28 domain |
| [A] Methanococcoides burtonii (strain DSM 6242) | METBU02203 | Q12TG8 | Glycosyltransferase |
| [A] Methanosarcina acetivorans | METAC00438 | Y452_METAC | Uncharacterized glycosyltransferase MA_0452 |
| [A] Methanosarcina barkeri (strain Fusaro / DSM 804) | METBF01932 | Q46AZ9 | glycosyltransferase |
| [A] Methanosarcina mazei | METMA01610 | Y1636_METMA | Uncharacterized glycosyltransferase MM_1636 |
| [A] Methanopyrus kandleri | METKA00976 | Y977_METKA | Uncharacterized glycosyltransferase MK0977 |
| [A] Korarchaeum cryptofilum (strain OPF8) | KORCO01456 | B1L6Y7 | Glycosyltransferase 28 domain protein |