Chains and heterogens:
PDB Chain Sequences:
>1s76D (D:) mntiniakndfsdielaaipfntladhygerlareqlalehesyemgearfrkmferqlk agevadnaaakplittllpkmiarindwfeevkakrgkrptafqflqeikpeavayitik ttlacltsadnttvqavasaigraiedearfgrirdleakhfkknveeqlnkrvghvykk afmqvveadmlskgllggeawsswhkedsihvgvrciemliestgmvslhrqnagvvgqd setielapeyaeaiatragalagispmfqpcvvppkpwtgitgggywangrrplalvrth skkalmryedvympevykainiaqntawkinkkvlavanvitkwkhcpvedipaiereel pmkpedidmnpealtawkraaaavyrkdkarksrrislefmleqankfanhkaiwfpynm dwrgrvyavsmfnpqgndmtkglltlakgkpigkegyywlkihgancagvdkvpfperik fieenhenimacaksplentwwaeqdspfcflafcfeyagvqhhglsyncslplafdgsc sgiqhfsamlrdevggravnllpsetvqdiygivakkvneilqadaingtdnevvtvtde ntgeisekvklgtkalagqwlaygvtrsvtkrsvmtlaygskefgfrqqvledtiqpaid sgkglmftqpnqaagymakliwesvsvtvvaaveamnwlksaakllaaevkdkktgeilr krcavhwvtpdgfpvwqeykkpiqtrlnlmflgqfrlqptintnkdseidahkqesgiap nfvhsqdgshlrktvvwahekygiesfalihdsfgtipadaanlfkavretmvdtyescd vladfydqfadqlhesqldkmpalpakgnlnlrdilesdfafa
>1s76D (D:) sdielaaipfntladhygerlareqlalehesyemgearfrkmferqlkagevadnaaak plittllpkmiarindwfeevkakrgkrptafqflqeikpeavayitikttlacltsadn ttvqavasaigraiedearfgrirdleakhfkknveeqlnkrvghvykkafmqvveadml skgawsswhkedsihvgvrciemliestgmvslhrqsetielapeyaeaiatragalagi spmfqpcvvppkpwtgitgggywangrrplalvrthskkalmryedvympevykainiaq ntawkinkkvlavanvitkwkhcpvedipaiereelpmtawkraaaavyrkdkarksrri slefmleqankfanhkaiwfpynmdwrgrvyavsmfnpqgndmtkglltlakgkpigkeg yywlkihgancagvdkvpfperikfieenhenimacaksplentwwaeqdspfcflafcf eyagvqhhglsyncslplafdgscsgiqhfsamlrdevggravnllpsetvqdiygivak kvneilqadaingtdnegtkalagqwlaygvtrsvtkrsvmtlaygskefgfrqqvledt iqpaidsgkglmftqpnqaagymakliwesvsvtvvaaveamnwlksaakllaaevkdkk tgeilrkrcavhwvtpdgfpvwqeykkpiqtrlnlmflgqfrlqptintnkdseidahkq esgiapnfvhsqdgshlrktvvwahekygiesfalihdsfgtipadaanlfkavretmvd tyescdvladfydqfadqlhesqldkmpalpakgnlnlrdilesdfafa