>1t6xB (B:) observed residues (from ATOM records)
vvsigvfdgvhighqkvlrtmkeiaffrkddsliytisyppeyflpdfpgllmtvesrve
mlsryartvvldffrikdltpegfverylsgvsavvvgrdfrfgknasgnasflrkkgve
vyeiedvvvqgkrvssslirnlvqegrveeipaylgryfeiegivhfptanidrgneklv
dlkrgvylvrvhlpdgkkkfgvmnvgfnvkyevyildfegdlygqrlklevlkfmrdekk
fdsieelkaaidqdvksarnmiddiinskf