>1bvsB (B:) observed residues (from ATOM records)
mifsvrgevlevaldhavieaagigyrvnatpsalatlnqgsqarlvtamvvredsmtly
gfsdaenrdlflallsvsgvgprlamatlavhdaaalrqaladsdvasltrvpgigrrga
erivleladkvgpgnavrgsvvealvglgfaakqaeeatdqvldgeatssalraalsllg
ktr