>4z0sA (A:) observed residues (from ATOM records)
arkyfvaanwkcngtlesiksltnsfnnldfdpskldvvvfpvsvhydhtrkllqskfst
giqnvskfgngsytgevsaeiakdlnieyviighaerrkyfhetdedvreklqaslknnl
kavvcfgesleqreqnktievitkqvkafvdlidnfdnvilvyeplwaigtgktatpeqa
qlvhkeirkivkdtcgekqanqirilyggsvntencssliqqedidgflvgnaslkesfv
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