>4bc6A (A:) observed residues (from ATOM records)
ehvrrdldpnevweivgelgdgafgkvykaknketgalaaakvietkseeeledyiveie
ilatcdhpyivkllgayyhdgklwimiefcpggavdaimleldrgltepqiqvvcrqmle
alnflhskriihrdlkagnvlmtlegdirladfgvsaknlktlqpywmapevvmcetmkd
tpydykadiwslgitliemaqiepphhelnpmrvllkiaksdpptlltpskwsvefrdfl
kialdknpetrpsaaqllehpfvssitsnkalrelvaeakaevme