>4n3eW (W:) observed residues (from ATOM records)
maaytivkeeespiaphrlfkalvlerhqvlvkaqphvfksgeiiegdggvgtvtkitfv
dghpltymlhkfdeidaanfyckytlfegdvlrdniekvvyevkleavgggskgkitvty
hpkpgctvneeevkigekkayefykqveeylaanpevfa