>5k4qF (F:) observed residues (from ATOM records)
prvlvtgalgqigtdlslalrdkfgadsvlvsdvvepgakhplaglkgvekldcldsngf
eklvkefkptwmyhlpaimsvrgeaepdlamdinvnttryalelarkynirifipstiaa
fgdkcgktmtkddtimnpstvygvtkvytellgtwyrqkygvdfrsvrlpgiisaatlpg
ggatdyaihmyhsallqkkcvcpvlpyeslpmmympdtlnslvkimeaplekltrtvyni
tgfsfspselrfsierctdrtieveyvegpaqkianswpdslddsnarndwghqvkydid
mmsedmlrqipilhglpsl