>3cx3B (B:) observed residues (from ATOM records)
kgmkivtsfypiyamvkevsgdlndvrmiqsssgihsfepsandiaaiydadvfvyhsht
leswagsldpnlkkskvkvleasegmtlervpgtlydphtwldpekageeaqiiadklse
vdsehketyqknaqafikkaqeltkkfqpkfekatqktfvtqhtafsylakrfglnqlgi
agispeqepsprqlteiqefvktykvktiftesnasvaetlvkstgvglktlnplesdpn
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