Alignment of the amino acid sequences of BGases. The active sites of P. expansum F3 BGase are thought to be E200 and E299, which are shaded in black. The conserved GHF35 sequence is boxed, and the putative N-glycosylation sites are shaded in gray. Asterisks, colons, and periods indicate invariant residues, similar amino acids, and less-similar amino acids in the aligned sequences, respectively. The signal peptide is underlined. All of the aligned sequences are available in GenBank.