>3q3bB (B:) observed residues (from ATOM records)
skvttvvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelvaikkvlqdkrfk
nrelqimrkldhcnivrlryffyssgdevylnlvldyvpetvyrvarhysrakqtlpviy
vklymyqlfrslayihsfgichrdikpqnllldpdtavlklcdfgsakqlvrgepnvsyi
csryyrapelifgatdytssidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgtpt
reqiremnpkfpqikahpwtkvfrprtppeaialcsrlleytptarltpleacahsffde
lrdpnvklpngrdtpalfnfttqelssnpplatilipphar