The sialyl-O-acetylesterase NanS of Tannerella forsythia encompasses two catalytic modules with different regiospecificity for O7 and O9 of sialic acid.
Glycobiology. 2021 Sep 20;31(9):1176-1191. doi: 10.1093/glycob/cwab034.
Glycobiology. 2021.
PMID: 33909048