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Fig. 4 | BMC Biochemistry

Fig. 4

From: Chemical and structural characterization of α-N-acetylgalactosaminidase I and II from starfish, asterina amurensis

Fig. 4

Summary of peptide sequences of α-GalNAcase I and II from starfish and alignment with that of chicken α-GalNAcases. The peptide sequences α-GalNAcase I and II were aligned with the corresponding sequence from chicken (Ch) α-GalNAcase. The underlined number indicated the respective peptide on Fig. 2. The peptide sequences marked with asterisk were analyzed by sequence analyzer. Numbering of amino acid started from N-terminal leucine of chicken α-GalNAcase. (Blank), means not determined the sequence. (.), means absent of amino acid residue. The conserved active site residues are shown in red. Boxed peptides comprise the N-acetyl recognition loop. The substitution of conserved residues in α-GalNAcase II as compared to typical α-GalNAcase are shown in green. Asp, Acremonium species α-GalNAcase (Ashida et al. [15]); Hu-α-Gal, Human α-galactosidase (Tsuji et al. [24])

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