>3n6bB (B:) observed residues (from ATOM records)
kfprvknwelgsitydtlcaqsqqdgpctprrclgslvlppaeqllsqardfinqyyssi
krsgsqaheerlqeveaevastgtyhlreselvfgakqawrnaprcvgriqwgklqvfda
rdcssaqemftyicnhikyatnrgnlrsaitvfpqrapgrgdfriwnsqlvryagyrqqd
gsvrgdpanveitelciqhgwtpgngrfdvlplllqapdeapelfvlppelvlevplehp
tlewfaalglrwyalpavsnmlleigglefsaapfsgwymsteigtrnlcdpsryniled
vavcmdldtrttsslwkdkaaveinlavlhsfqlakvtivdhhaatvsfmkhldneqkar
ggcpadwawivppisgsltpvfhqemvnyilspafryqpdpw