Figure 4. Comparison of prion protein sequences from various species. The following species are shown, and GenBank accession numbers are given when available: human (M13899), cynomolgus macaque (Cyno Mac) (U08298), squirrel monkey (Sq Mk) (genotype RML-A, see Table 4), squirrel monkey from Schneider et al. (31) (AY765385), squirrel monkey from Schätzl et al. (28) (U08310), mule deer (AY330343), and elk (AF156183). Numbering is based on the human sequence. Gray boxes indicate residues different from human residues. Alignment of the sequences was conducted with MegAlign software (DNAstar/Lasergene, Madison, WI, USA).