>3c66B (B:) observed residues (from ATOM records)
sqkvfgitgpvstvgataaenklndsliqelkkegsfeteqetanrvqvlkilqelaqrf
vyevskkknmsdgmardaggkiftygsyrlgvhgpgsdidtlvvvpkhvtredfftvfds
llrerkeldeiapvpdafvpiikikfsgisidlicarldqpqvplsltlsdknllrnlde
kdlralngtrvtdeilelvpkpnvfrialraiklwaqrravyanifgfpggvawamlvar
icqlypnacsavilnrffiilsewnwpqpvilkpiedgplqvrvwnpkiyaqdrshrmpv
itpaypsmcathnitestkkvilqefvrgvqitndifsnkkswanlfekndfffrykfyl
eitaytrgsdeqhlkwsglveskvrllvmklevlagikiahpftkpfessyccpteddye
miqdkygshktetalnalklvtdenkeeesikdapkaylstmyigldfnienkkekvdih
ipctefvnlcrsfnedygdhkvfnlalrfvkgydlpdevfdenekrpsk