Figure 1.

Phylogenetic trees of four rumen fungal query sequences aligned with characterized sequences from related GH39 and GH51 families. A, GH39 and B, GH51. Each sequence leaf represents the catalytic module from the associated ascension number. Taxonomic (bacterial, eukaryotic, and unclassified) and functional (α-l-arabinofuranosidase, β-1,4-glucanase, β-1,4-xylanase, β-xylosidase, α-l-iduronidase) differences are defined within the legend. Characterized activities and organism source are depicted with different symbol colors and shapes, respectively.