>1bvsF (F:) observed residues (from ATOM records)
mifsvrgevlevaldhavieaagigyrvnatpsalatlnqgsqarlvtamvvredsmtly
gfsdaenrdlflallsvsgvgprlamatlavhdaaalrqaladsdvasltrvpgigrrga
erivleladkvgpgnavrgsvvealvglgfaakqaeeatdqvldgeatssalraalsllg
ktr