>4ip3B (B:) observed residues (from ATOM records)
aglprriiketqrllaepvpgikaepdesnaryfhvviagpqdspfeggtfklelflpee
ypmaapkvrfmtkiyhpnvdklgricldilkdkwspalqirtvllsiqallsapnpddpl
andvaeqwktneaqaietarawtrlyamnni