Chains and heterogens:
PDB Chain Sequences:
>4pteA (A:) mhsshhhhhhssgenlyfqghmsgrprttsfaesckpvqqpsafgsmkvsrdkdgskvtt vvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelvaikkvlqdkrfknrelq imrkldhcnivrlryffyssgekkdevylnlvldyvpetvyrvarhysrakqtlpviyvk lymyqlfrslayihsfgichrdikpqnllldpdtavlklcdfgsakqlvrgepnvsyics ryyrapelifgatdytssidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgtptre qiremnpnytefkfpqikahpwtkvfrprtppeaialcsrlleytptarltpleacahsf fdelrdpnvklpngrdtpalfnfttqelssnpplatilipphariqaaastptnataasd antgdrgqtnnaasasasnst
>4pteA (A:) kvttvvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelvaikkvlqdfknre lqimrkldhcnivrlryffyssdevylnlvldyvpetvyrvarhysrakqtlpviyvkly myqlfrslayihsfgichrdikpqnllldpdtavlklcdfgsakqlvrgepnvsyicsry yrapelifgatdytssidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgtptreqi remnpnytefkfpqikahpwtkvfrprtppeaialcsrlleytptarltpleacahsffd elrdpnvklpngrdtpalfnfttqelssnpplatilippha
>4pteB (B:) mhsshhhhhhssgenlyfqghmsgrprttsfaesckpvqqpsafgsmkvsrdkdgskvtt vvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelvaikkvlqdkrfknrelq imrkldhcnivrlryffyssgekkdevylnlvldyvpetvyrvarhysrakqtlpviyvk lymyqlfrslayihsfgichrdikpqnllldpdtavlklcdfgsakqlvrgepnvsyics ryyrapelifgatdytssidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgtptre qiremnpnytefkfpqikahpwtkvfrprtppeaialcsrlleytptarltpleacahsf fdelrdpnvklpngrdtpalfnfttqelssnpplatilipphariqaaastptnataasd antgdrgqtnnaasasasnst
>4pteB (B:) kvttvvatpgqgpdrpqevsytdtkvigngsfgvvyqaklcdsgelvaikkvlqdkrfkn relqimrkldhcnivrlryffyssgeevylnlvldyvpetvyrvarhysrakqtlpviyv klymyqlfrslayihsfgichrdikpqnllldpdtavlklcdfgsakqlvrgepnvsyic sryyrapelifgatdytssidvwsagcvlaelllgqpifpgdsgvdqlveiikvlgtptr eqiremnpnytefkfpqikahpwtkvfrprtppeaialcsrlleytptarltpleacahs ffdelrdpnvklpngrdtpalfnfttqelssnpplatilipphariq