>2f1lA (A:) observed residues (from ATOM records)
dlvvigkivsvygirgevkvysftdpldnlldyrrwtlrrdgeirqaelvrgrlhgkvla
aklkglddreeartftgyeiciprselpsyywhqleglkvidqgrqllgvidhlletgan
dvmvvkpcagslddrerllpytgqcvlsidlaagemrvdwdadf