>1ylyB (B:) observed residues (from ATOM records)
avqqklaalekssggrlgvalidtadntqvlyrgderfpmcstskvmaaaavlkqsetqk
qllnqpveikpadlvnynpiaekhvngtmtlaelsaaalqysdntamnkliaqlggpggv
tafaraigdetfrldrteptlntaipgdprdtttpramaqtlrqltlghalgetqraqlv
twlkgnttgaasiraglptswtagdktgsgdygttndiaviwpqgraplvlvtyftqpqq
naesrrdvlasaariiaegl