Chains and heterogens:
PDB Chain Sequences:
>3zrlA (A:) fgsmkvsrdkdgskvttvvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelv aikkvlqdkrfknrelqimrkldhcnivrlryffyssgekkdevylnlvldyvpetvyrv arhysrakqtlpviyvklymyqlfrslayihsfgichrdikpqnllldpdtavlklcdfg sakqlvrgepnvsyicsryyrapelifgatdytssidvwsagcvlaelllgqpifpgdsg vdqlveiikvlgtptreqiremnpnytefkfpqikahpwtkvfrprtppeaialcsrlle ytptarltpleacahsffdelrdpnvklpngrdtpalfnfttqelssnpplatilippha riqaaastptn
>3zrlA (A:) kvttvvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelvaikkvlqdkrfkn relqimrkldhcnivrlryffysskkdevylnlvldyvpetvyrvarhysrakqtlpviy vklymyqlfrslayihsfgichrdikpqnllldpdtavlklcdfgsakqlvrgepnvsyi csryyrapelifgatdytssidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgtpt reqiremnpnytefkfpqikahpwtkvfrprtppeaialcsrlleytptarltpleacah sffdelrdpnvklpngrdtpalfnfttqelssnpplatilipphariq
>3zrlB (B:) fgsmkvsrdkdgskvttvvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelv aikkvlqdkrfknrelqimrkldhcnivrlryffyssgekkdevylnlvldyvpetvyrv arhysrakqtlpviyvklymyqlfrslayihsfgichrdikpqnllldpdtavlklcdfg sakqlvrgepnvsyicsryyrapelifgatdytssidvwsagcvlaelllgqpifpgdsg vdqlveiikvlgtptreqiremnpnytefkfpqikahpwtkvfrprtppeaialcsrlle ytptarltpleacahsffdelrdpnvklpngrdtpalfnfttqelssnpplatilippha riqaaastptn
>3zrlB (B:) kvttvvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelvaikkvlqdkrfkn relqimrkldhcnivrlryffyssgekkdevylnlvldyvpetvyrvarhysrakqtlpv iyvklymyqlfrslayihsfgichrdikpqnllldpdtavlklcdfgsakqlvrgepnvs yicsryyrapelifgatdytssidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgt ptreqiremnpnytefkfpqikahpwtkvfrprtppeaialcsrlleytptarltpleac ahsffdelrdpnvklpngrdtpalfnfttqelssnpplatilipphari