>5i1uB (B:) observed residues (from ATOM records)
slelpfthrrnphqteaadrhlewlqrhrelaavvsgstytgwditelaslvypessaed
lalaadlmgfyflfddqfdsplgrrpeqvalicerlsaiahgtltavtspserafadlwr
ritlgmtdrwraraacnweyyfachpaeaagrtippdregyltlrrgtaamesifdmier
lghfevpqhvmhhplfrqlrqlaadipsftndvrsfvanlvmivrrdrccstaeacavvw
deaqrmadrfcdlrdqlpdacrsmsldpaqrlaaeryadgmalwlagylhwesh