>2hetA (A:) observed residues (from ATOM records) lskeileelqlntkfteeelsswyqsflkecpsgritrqefqtiyskffpeadpkayaqh vfrsfdansdgtldfkeyvialhmtsagktnqklewafslydvdgngtisknevleivta ifkmispedtkhlpedentpekraekiwgffgkkdddkltekefiegtlankeilrliqf ep