>2c39U (U:) observed residues (from ATOM records)
msstpsnqniipiikkesivslfekgirqdgrkltdyrplsitldyakkadgsalvklgt
tmvlagtkleidkpyedtpnqgnlivnvellpdenaielarvvdrslrdskaldltklvi
epgksvwtvwldvyvldyggnvldactlasvaalyntkvykvvnknevvgklplnypvvt
isvakvdkylvvdpdldeesimdakisfsytpdlkivgiqksgkgsmslqdidqaentar
stavklleelkkhlg