>2grhB (B:) observed residues (from ATOM records) svydaaaqltadvkkdlrdswkvigsdkkgngvalvttlfadnqetigyfkrlgdvsqgm andklrghsitlmyalqnfidqldnpddlvcvvekfavnhitrkisaaefgkingpikkv lasknfgdkyanawaklvavvqaal