>3cc2R (R:) observed residues (from ATOM records)
gisysveadpdttakamlrerqmsfkhskaiareikgktageavdyleaviegdqpvpfk
qhnsgvghkskvdgwdagrypekaskafldllenavgnadhqgfdgeamtikhvaahkvg
eqqgrkpramgrasawnspqvdvelileep