>1ylnA (A:) observed residues (from ATOM records)
tvstinstdalamvehsseltlsittpvgtkfvcrtpfigthtdkfllvempkisaddlq
yffqegfwmniraisprgegalihfrsqlmhilqepvpmaflsipntmqvsqlrkeprfe
lnlagkvlfdehrgdcelrdlsrsgcrfitpplgktyqvgdlvaleifsdlrgtktfppl
tgkicnlqrslhharyglefneegrnnaknllaqlkfngtkltlna