>2f6sA (A:) observed residues (from ATOM records)
ghmhldrqslekakhliqsglidtievgtikglqeihrflfeglyefagkirdkniakgn
frfanclyldlilpriesmpqnnfnqivekyvemniahpflegngratriwldlllkkel
kkivlwdridkaaylsamerspvndleiktllkkhlssntndpltlikgitqsyyyeglg