Chains and heterogens:
PDB Chain Sequences:
>1q4lA (A:) gplgssgrprttsfaesckpvqqpsafgsmkvsrdkdgskvttvvatpgqgpdrpqevsy tdtkvigngsfgvvyqaklcdsgelvaikkvlqdkrfknrelqimrkldhcnivrlryff yssgekkdevylnlvldyvpetvyrvarhysrakqtlpviyvklymyqlfrslayihsfg ichrdikpqnllldpdtavlklcdfgsakqlvrgepnvsyicsryyrapelifgatdyts sidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgtptreqiremnpnytefkfpqi kahpwtkvfrprtppeaialcsrlleytptarltpleacahsffdelrdpnvklpngrdt palfnfttqelssnpplatilipphariqaaastptnataasdantgdrgqtnnaasasa snst
>1q4lA (A:) skvttvvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelvaikkvlqdkrfk nrelqimrkldhcnivrlryffyssgdevylnlvldyvpetvyrvarhysrakqtlpviy vklymyqlfrslayihsfgichrdikpqnllldpdtavlklcdfgsakqlvrgepnvsyi csryyrapelifgatdytssidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgtpt reqiremnfpqikahpwtkvfrprtppeaialcsrlleytptarltpleacahsffdelr dpnvklpngrdtpalfnfttqelssnpplatilipphariqa
>1q4lB (B:) gplgssgrprttsfaesckpvqqpsafgsmkvsrdkdgskvttvvatpgqgpdrpqevsy tdtkvigngsfgvvyqaklcdsgelvaikkvlqdkrfknrelqimrkldhcnivrlryff yssgekkdevylnlvldyvpetvyrvarhysrakqtlpviyvklymyqlfrslayihsfg ichrdikpqnllldpdtavlklcdfgsakqlvrgepnvsyicsryyrapelifgatdyts sidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgtptreqiremnpnytefkfpqi kahpwtkvfrprtppeaialcsrlleytptarltpleacahsffdelrdpnvklpngrdt palfnfttqelssnpplatilipphariqaaastptnataasdantgdrgqtnnaasasa snst
>1q4lB (B:) skvttvvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelvaikkvlqdkrfk nrelqimrkldhcnivrlryffyssgdevylnlvldyvpetvyrvarhysrakqtlpviy vklymyqlfrslayihsfgichrdikpqnllldpdtavlklcdfgsakqlvrgepnvsyi csryyrapelifgatdytssidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgtpt reqiremnpnytepwtkvfrprtppeaialcsrlleytptarltpleacahsffdelrdp nvklpngrdtpalfnfttqelssnpplatilipphar