MOESM1 of A structured understanding of cellobiohydrolase I binding to poplar lignin fractions after dilute acid pretreatment

Abstract

Additional file 1: Figure S1. 2D-HSQC spectra and the main structures of the isolated lignins: (A) β-aryl-ether units (β-O-4); (B) phenylcoumarane; (C) resinols; (G) guaiacyl units; (S) syringyl units; (S’) oxidized syringyl units bearing a carbonyl at Cα; (PB) p-Hydroxybenzoate units. Condensed lignin was assigned from Sun et al. [8]