>5za1B (B:) observed residues (from ATOM records)
naslteiehlvqsvcksyretcqlrledllrqrsnifsreevtgyqrksmwemwercahh
lteaiqyvvefakrlsgfmelcqndqivllkagamevvlvrmcraynadnrtvffegkyg
gmelfralgcselissifdfshslsalhfsedeialytalvlinahrpglqekrkveqlq
ynlelafhhhlckthrqsilaklppkgklrslcsqhverlqifq