>1yl4G (G:) observed residues (from ATOM records)
gryigpvcrlcrregvklylkgercyspkcamerrpyppgqhgqkrarrpsdyavrlrek
qklrriygiserqfrnlfeeaskkkgvtgsvflgllesrldnvvyrlgfavsrrqarqlv
rhghitvngrrvdlpsyrvrpgdeiavaeksrnlelirqnleamkgrkvgpwlsldvegm
kgkflrlpdredlalpvneqlviefysr