EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
4.2.2.15 | 4-methylumbelliferyl-alpha-N-acetylneuraminic acid + H2O |
only sialoglycoconjugates, not free alpha-N-acetylneuraminic acid |
Macrobdella decora |
4-methylumbelliferone + 2,7-anhydro-alpha-N-acetylneuraminic acid |
- |
? |
4.2.2.15 | 4-methylumbelliferyl-alpha-N-acetylneuraminic acid + H2O |
strict specificity towards the hydrolysis of NeuAcalpha(2-3)Gal-linkages |
Macrobdella decora |
4-methylumbelliferone + 2,7-anhydro-alpha-N-acetylneuraminic acid |
- |
? |
4.2.2.15 | 4-methylumbelliferyl-alpha-N-acetylneuraminic acid glycoproteins or ganglioside + H2O |
- |
Macrobdella decora |
2,7-anhydro-alpha-N-acetylneuraminic acid |
- |
? |
4.2.2.15 | alpha-(2,3)-sialyl oligosacharides |
- |
Trypanosoma cruzi |
? |
- |
? |
4.2.2.15 | human alpha-1 acid glycoprotein + H2O |
NanB preferentially cleaves alpha2-3 linked sialic acid from human alpha-1 glycoprotein |
Streptococcus pneumoniae |
2,7-anhydro-alpha-N-acetylneuraminic acid + ? |
- |
? |