>2f4lA (A:) observed residues (from ATOM records)
mkvvpaqrcvysfsanmapveevypgeqvvfetldalgskvnpatgpvfvngvkpgdtlk
vrikrielprrgmivtgkgfgvlgdevegfhtkeleiekwavlfdgvripihpmvgvigv
apqegeyptgtahrhggnmdtkeitenvtvhlpvfqegallalgdvhatmgdgevcvsac
evpakvvveidvskeeikwpvvetndayyiivslpdieealkevtretvwfiqrrktipf
tdaymlaslsvdvgisqlvnpaktakaripkyift