>1nbqB (B:) observed residues (from ATOM records)
mgsvtvhssepevripennpvklscaysgfssprvewkfdqgdttrlvcynnkitasyed
rvtflptgitfksvtredtgtytcmvseeggnsygevkvklivlvppskptvnipssati
gnravltcseqdgsppseytwfkdgivmptnpkstrafsnssyvlnpttgelvfdplsas
dtgeyscearngygtpmtsnavrmeave