>1s4mB (B:) observed residues (from ATOM records)
mvvsigvfdgvhighqkvlrtmkeiaffrkddsliytisyppeyflpdfpgllmtvesrv
emlsryartvvldffrikdltpegfverylsgvsavvvgrdfrfgknasgnasflrkkgv
evyeiedvvvqgkrvssslirnlvqegrveeipaylgryfeiegivhkfptanidrgnek
lvdlkrgvylvrvhlpdgkkkfgvmnvgfnvkyevyildfegdlygqrlklevlkfmrde
kkfdsieelkaaidqdvksarnmiddiinskf