>4lyfB (B:) observed residues (from ATOM records)
mteyklvvvgacgvgksaltiqliqnhfvsyrkqvvidgetslldildtagqeeysamrd
qymrtgegfllvfainntksfedihhyreqikrvkdsedvpmvlvgnksdlpsrtvdtkq
aqdlarsygipfietsaktrqgvddafytlvreirkhk