Figure 1From: Characterization of the first beta-class carbonic anhydrase from an arthropod (Drosophila melanogaster) and phylogenetic analysis of beta-class carbonic anhydrases in invertebratesAlignment of 26 β-CA sequences from invertebrate species. Only the first 120 residues are shown. Active-site residues C, D, R, H and C are highlighted below the alignment. These residues are found in all β-CAs. See Table 1 for identification of species.Back to article page