Figure 2

Comparison of cellulolytic components between cellulolytic and non-cellulolytic bacteria. Representatives from cellulolytic enzyme families (cellulases) and cellulosome components (dockerins and cohesins) were tabulated in bacteria with unconfirmed cellulosomes (light-gray), confirmed cellulosomes (dark gray), and non-cellulolytic bacteria (unshaded). Sums in each category were used to generate a distance matrix that distinguished groups of these bacteria. Although the cellulolytic Clostridium phytofermentans ISDg does not have a confirmed cellulosome, it is highlighted in black to emphasize its relative distinction from the other groups.