>4lv6B (B:) observed residues (from ATOM records)
mteyklvvvgacgvgksaltiqliqnhfvdeydptiedsyrkqvvidgetslldildtag
qeeysamrdqymrtgegfllvfainntksfedihhyreqikrvkdsedvpmvlvgnksdl
psrtvdtkqaqdlarsygipfietsaktrqgvddafytlvreirkhk