>4by5D (D:) observed residues (from ATOM records)
klkqdtidrlttdtyftekeirqwhkgflkdcpngllteqgfikiykqffpdgdpskfas
lvfrvfdenndgaiefeefiralsitsrgnldeklhwafrlydvdndgyitreemynivd
aiyqmvpqkrvdkifdqmdknhddrltleefregskadprmvqal