Chains and heterogens:
PDB Chain Sequences:
>3mk1A (A:) iipveeenpdfwnreaaealgaakklqpaqtaaknliiflgdgmgvstvtaarilkgqkk dklgpeiplamdrfpyvalsktynvdkhvpdsgatataylcgvkgnfqtiglsaaarfnq cnttrgnevisvmnrakkagksvgvvtttrvqhaspagtyahtvnrnwysdadvpasarq egcqdiatqlisnmdidvilgggrkymfrmgtpdpeypddysqggtrldgknlvqewlak rqgaryvwnrtelmqasldpsvthlmglfepgdmkyeihrdstldpslmemteaalrlls rnprgfflfveggridhghhesrayraltetimfddaieragqltseedtlslvtadhsh vfsfggyplrgssifglapgkardrkaytvllygngpgyvlkdgarpdvtesesgspeyr qqsavpldeethagedvavfargpqahlvhgvqeqtfiahvmafaaclepytacdlappa gttd
>3mk1A (A:) iipveeenpdfwnreaaealgaakklqpaqtaaknliiflgdgmgvstvtaarilkgqkk dklgpeiplamdrfpyvalsktynvdkhvpdsgatataylcgvkgnfqtiglsaaarfnq cnttrgnevisvmnrakkagksvgvvtttrvqhaspagtyahtvnrnwysdadvpasarq egcqdiatqlisnmdidvilgggrkymfrmgtpdpeypddysqggtrldgknlvqewlak rqgaryvwnrtelmqasldpsvthlmglfepgdmkyeihrdstldpslmemteaalrlls rnprgfflfveggridhghhesrayraltetimfddaieragqltseedtlslvtadhsh vfsfggyplrgssifglapgkardrkaytvllygngpgyvlkdgarpdvtesesgspeyr qqsavpldeethagedvavfargpqahlvhgvqeqtfiahvmafaaclepytacdlappa g