Overview of the occurrence of GHs targeting plant structural polysaccharides in five herbivore metagenomes*.

*GHs are grouped according to their major functional role in the degradation of plant fiber. The numbers in parentheses represent the percentages of these groups relative to the total number of GH’s presented in this table. In addition to GHs, the table shows data for four other selected proteins possibly involved in biomass turnover; see main text for details. Note that some of the GH profiles were derived from contigs‡ rather than (filtered) unassembled reads§, explaining part of the differences in absolute gene numbers. ¶ Data calculated in this study using searches against the rumen metagenome dataset [7] using SusC (PF00593) and SusD (PF07980) HMMs. †Pfam HMMs not available for CAZy families; data generated by dbCAN (http://csbl.bmb.uga.edu/dbCANdev/index.php).