>2fs6A (A:) observed residues (from ATOM records)
nfsgnwkiirsenfeellkvlgvnvmlrkiavaaaskpaveikqegdtfyiktsttvrtt
einfkvgeefeeqtvdgrpckslvkwesenkmvceqkllkgegpktswtreltndgelil
tmtaddvvctrvyvre