>1q4lA (A:) observed residues (from ATOM records)
skvttvvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelvaikkvlqdkrfk
nrelqimrkldhcnivrlryffyssgdevylnlvldyvpetvyrvarhysrakqtlpviy
vklymyqlfrslayihsfgichrdikpqnllldpdtavlklcdfgsakqlvrgepnvsyi
csryyrapelifgatdytssidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgtpt
reqiremnfpqikahpwtkvfrprtppeaialcsrlleytptarltpleacahsffdelr
dpnvklpngrdtpalfnfttqelssnpplatilipphariqa