Structural modeling and further improvement in pH stability and activity of a highly-active xylanase from an uncultured rumen fungus.

Rumen fungi are a rich source of enzymes degrading lignocelluloses. XynR8 is a glycosyl hydrolase family 11 xylanase previously cloned from unpurified rumen fungal cultures. Phylogenetic analysis suggested that xynR8 was obtained from a Neocallimastix species.