>3g4vB (B:) observed residues (from ATOM records)
svydaaaqltadvkkdlrdswkvigsdkkgngvalmttlfadnqetigyfkrlgdvsqgm
andklrghsitlmyalqnfidqldnpddlvcvvekfavnhitrkisaaefgkingpikkv
lasknfgdkyanawaklvavvqaal