Sequence identification of the cathepsin B-like AC-5 from H. contortus. The aminoacid stretch identified from AC-5 by mass spectrometry aligned to CBL sequences from H. contortus. Positions having four or more identical residues are shaded. GenBank accession numbers (AC-5-AAA29176, AC1-AAA29175, AC2-AAA29171, AC3-AAA29178, AC4-AAA29177, HMCP1-CAA93275, HMCP2-CAA93276, HMCP3-CAA93277, HMCP4-CAA93278, HMCP5-CAA93279, HMCP6- CAB03627, GCP7-AAC05262.