Table 1.
Substrate Specificity of Endoglycosidases for Hydrolysis of N-Glycans and Glycoproteins
| Enzyme | Organisms | GH family | N-Glycan substrate | Core-fucose hydrolyzed? | Assistant residue | General acid/base | ref |
|---|---|---|---|---|---|---|---|
| Endo-A | Arthrobacter protophormiae | 85 | HM/Hyba | No | N171b | E173b | 197–199 |
| Endo-M | Mucor hiemalis | 85 | HM/Hyb/CTa | No | N175b | E177b | 200 |
| Endo-D | Streptococcus pneumoniae | 85 | truncated HM | Yes | N322 | E324 | 201, 202 |
| Endo-CE | Caenorhabditis elegans | 85 | HM/Hyba | No | N152 | E154 | 186 |
| Endo-BH | Bacillus halodurans | 85 | HM/Hyba | NDc | N170 | E172 | 192 |
| Endo-Om | Ogatea minuta | 85 | HM/Hyb/CTa | No | N194 | E196 | 203, 204 |
| Endo-CC1 | Coprinopsis cinerea | 85 | HM/Hyb/CTa | NDc | N180 | E182 | 180, 196 |
| Endo-CC2 | Coprinopsis cinerea | 85 | HM/Hyb/CTa | NDc | N186 | E188 | 196 |
| Endo-H | Streptomyces plicatus | 18 | HM/Hyba | Yes | D172 | E174 | 205 |
| Endo-F1 | Elizabethkingia meningoseptica | 18 | HM/Hyba | Yes | D180 | E182 | 206 |
| Endo-F2 | Elizabethkingia meningoseptica | 18 | CTa | Yes | D169 | E171 | 194, 206 |
| Endo-F3 | Elizabethkingia meningoseptica | 18 | CT/TCTa | Preferred | D165 | E167 | 194, 206 |
| Endo-BI1 | Bif idobacterium longum subsp. infantis | 18 | HM/Hyb/CTa | Yes | D184 | E186 | 207 |
| Endo-BI2 | Bif idobacterium longum subsp. infantis | 18 | HM/CT | NDc | NDc | NDc | 207 |
| Endo-S | Streptococcus pyogenes | 18 | CT | Yes | D233 | E235 | 195, 208–211 |
| Endo-S2 | Streptococcus pyogenes | 18 | HM/Hyb/CT | Yes | D184 | E186 | 210, 212 |
The abbreviations for N-glycans: HM, high-mannose type; Hyb, hybrid type; CT, biantennary complex type; TCT, triantennary complex type.
The numbering of amino acids refers to the peptide sequence after cleavage of an N-terminal signal peptide as described in the original publications.
Not determined.