>3cc4R (R:) observed residues (from ATOM records) gisysveadpdttakamlrerqmsfkhskaiareikgktageavdyleaviegdqpvpfk qhnsgvghkskvdgwdagrypekaskafldllenavgnadhqgfdgeamtikhvaahkvg eqqgrkpramgrasawnspqvdvelileep