>5n56A (A:) observed residues (from ATOM records)
afelpklpyafdalephfdketmeihhdrhhntyvtklnaavegtdlesksieeivanld
svpaniqtavrnnggghlnhslfwellspnseekgtvvekikeqwgsleefkkefadkaa
arfgsgwawlvvnngqleivttpnqdnpltegktpilgldvwehayylkyqnkrpdyiga
fwnvvnwekvdelynatk