>3sn7B (B:) observed residues (from ATOM records)
hmsictseewqglmqftlpvrlckeielfhfdigpfenmwpgifvymvhrscgtscfele
klcrfimsvkknyrrvpyhnwkhavtvahcmyailqnnhtlftdlerkglliaclchdld
hrgfsnsytstmeqhhfsqtvsilqleghnifstlssseyeqvleiirkaiiatdlalyf
gnrkqleemyqtgslnlnnqshrdrviglmmtacdlcsvtklwpvtkltandiyaefwae
gdemkklgiqpipmmdrdkkdevpqgqlgfynavaipcyttltqilpptepllkacrdnl
sqwekvirge