>1x90B (B:) observed residues (from ATOM records)
emsticdktlnpsfclkflntkfasanlqalakttldstqaratqtlkklqsiidggvdp
rsklayrscvdeyesaignleeafehlasgdgmgmnmkvsaaldgadtclddvkrlrsvd
ssvvnnsktiknlcgialvisnmlprn