>3n4kA (A:) observed residues (from ATOM records)
namlnivlfepeippntgniirlcantgcqlhlikplgftwddkrlrragldyhefadik
hhhdyqafldsekldstqparlfalttkgtpahsavsyqandyllfgpetrglpayilda
lpaqqkiripmqadsrsmnlsnavsvvvyeawrqlgypgallk