Fig. 3

Endo-1,4 β-xylanase C (XynC) is the major xylanase secreted by PFIX7, the XlnR overexpression strain, when grown on xylose. a SDS-PAGE showing total secreted proteins in WT (A773) and PFIX7 when growing with 2 or 4% xylose at pH 5 or pH 8. Boxes indicate major proteins present under various conditions, and bands identified by letters were excised and analyzed by LC/MS–MS. b Table correlating protein IDs (protein name) with LC/MS–MS spectral counts (abundance) of excised protein bands indicated in a