<p>Residues in bold are highly conserved and those in boxes with a black background are perfect matches. Aromatic residues that are candidates for carbohydrate binding are indicated by a filled arrow, and two pairs of cysteines forming disulfide bonds are indicated by filled and open circles, respectively. <i>Tr</i>CBHI, cellobiohydrolase I (Cel7A) from <i>Trichoderma reesei</i> (accession no. P62694); <i>Pc</i>CBHII, cellobiohydrolase II (Cel6A) from <i>Phanerochaete chrysosporium</i> (Q02321); <i>Pc</i>BGL3A, glucan β-1,3-glucosidase (Bgl) from <i>P</i>. <i>chrysosporium</i> (Q8TGC6); <i>Pc</i>CBHI, cellobiohydrolase I-2 (Cel7D) from <i>P</i>. <i>chrysosporium</i> (Q09431); <i>Tr</i>CBHII, cellobiohydrolase II (Cel6A) from <i>T</i>. <i>reesei</i> (P07987); <i>Pc</i>CBCytb562, carbohydrate-binding cytochrome <i>b</i><sub>562</sub> from <i>P</i>. <i>chrysosporium</i> (Q66NB8); <i>Mt</i>CDH, cellobiose dehydrogenase from <i>Myceliophthora thermophila</i> (O74240).</p
