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. Author manuscript; available in PMC: 2018 Oct 9.
Published in final edited form as: Angew Chem Int Ed Engl. 2018 Jun 25;57(29):9003–9007. doi: 10.1002/anie.201804373

Scheme 4.

Scheme 4.

a) Three enzyme modules for enzymatic diversification; b) Enzymatic assembly of Core M1 O-mannose glycans 1621 from 1; c) Enzymatic assembly of C6-branched Core M1 O-mannose glycan isomers 2227 from 2; d) Enzymatic assembly of symmetrical Core M2 O-mannose glycans 2833 from 3.