Fig. 2From: Sarcoptes scabiei: genomics to proteomics to biologyNeighbor joining tree of cysteine protease homologs. Asterisks indicate those containing active site residues that are intact. Accessions beginning with “A” are Sarcoptes scabiei var. hominis, and those with “K” are S. scabiei var. canis. All putatively active members cluster togetherBack to article page