>1t83C (C:) observed residues (from ATOM records)
lpkavvflepqwysvlekdsvtlkcqgayspednstqwfhneslissqassyfidaatvn
dsgeyrcqtnlstlsdpvqlevhigwlllqaprwvfkeedpihlrchswkntalhkvtyl
qngkdrkyfhhnsdfhipkatlkdsgsyfcrglvgsknvssetvnit