>6sfaA (A:) observed residues (from ATOM records)
asmerflsvydevqaflldqlqskyeidpnrarylrimmdttclggkyfrgmtvvnvaeg
flavtqhdeatkerilhdacvggwmieflqahylveddimdgsvmrrgkpcwyrfpgvtt
qcaindgiilkswtqimawhyfadrpflkdllclfqkvdyatavgqmydvtsmcdsnkld
pevaqpmttdfaeftpaiykrivkykttfytyllplvmgllvseaaasvemnlvervahl
igeyfqvqddvmdcftppeqlgkvgtdiedakcswlavtflgkanaaqvaefkanygekd
pakvavvkrlyskanlqadfaayeaevvreveslieqlkvksptfaesvavvwekthk