(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 5. Fxna functional domains. The deduced amino acid sequence is shown in
capital letters and the nucleotide sequence in lower case letters. The
peptidase unit is underlined; the catalytic residues (Asp 201, Glu 245) are
circled, and the metal-binding amino acids (His 199, Asp 211, Glu 246, Glu 272
and His 348) within squares. Heavy underlining identifies the polyadenylation
signal.