Chains and heterogens:
PDB Chain Sequences:
>1j3nA (A:) mrrvvvtglgaltpigvgqeafhkaqlagksgvrpitrfdasalpvriaaevdvdpgayl drkelrrldrfvqyaliaaqlaledaglkpedldpervgtlvgtgiggmetweaqsrvfl ergpnrispffipmmianmasahiamrygftgpsstvvtacatgadalgsalrmiqlgea dlvlaggteaaitpmaigafavmralstrneepekasrpftlsrdgfvmgegagvlvlea yehakkrgariyaelvgfgrsadahhitephpegkgaalamaralkdagiapeqvgyina hgtstpvgdraevlaikrvfgdhakrlmvsstksmighllgaagaveaiatvqalyhgvi pptinledpdpeldldfvpepreakvdyalsnsfafgghnavlafkrv
>1j3nB (B:) mrrvvvtglgaltpigvgqeafhkaqlagksgvrpitrfdasalpvriaaevdvdpgayl drkelrrldrfvqyaliaaqlaledaglkpedldpervgtlvgtgiggmetweaqsrvfl ergpnrispffipmmianmasahiamrygftgpsstvvtacatgadalgsalrmiqlgea dlvlaggteaaitpmaigafavmralstrneepekasrpftlsrdgfvmgegagvlvlea yehakkrgariyaelvgfgrsadahhitephpegkgaalamaralkdagiapeqvgyina hgtstpvgdraevlaikrvfgdhakrlmvsstksmighllgaagaveaiatvqalyhgvi pptinledpdpeldldfvpepreakvdyalsnsfafgghnavlafkrv