>5thkC (C:) observed residues (from ATOM records)
thtladkvvliaggaknlggliardlaghgakavaihynsaasqaqaeetaaavraagae
aatfqadlttaaaveklfddakqrfgkidiaintvgkvlkkpfteiseaeydemfavnsk
safffikeagrhledhgklvtlvtsllgaftpfyaayegskapvehftraaskeygargi
svtavgpgpmdtpffypaegadavayhktaaalspfsktgltdiedvvpfirhlvtdgww
itgqtilinggyttk