Chains and heterogens:
PDB Chain Sequences:
>1nc4A (A:) qavvtqesalttspgetvtltcrsstgavttsnyanwvqekpdhlftgliggnnnrppgv parfsgsligdkaaltiagtqtedeaiyfcalwysnhwvfgggtrltvlgqpksspsvtl fppsseeletnkatlvctitdfypgvvtvdwkvdgtpvtqgmettqpskqsnnkymassy ltltarawerhssyscqvtheghtvekslspaecs
>1nc4A (A:) qavvtqesalttspgetvtltcrsstgavttsnyanwvqekpdhlftgliggnnnrppgv parfsgsligdkaaltiagtqtedeaiyfcalwysnhwvfgggtrltvlgqpksspsvtl fppsseeletnkatlvctitdfypgvvtvdwkvdgtpvtqgmettqpskqsnnkymassy ltltarawerhssyscqvtheghtvekslsp
>1nc4B (B:) evklqesgpglvqpsqslsitctvsgfsltdygvhwvrqspgkglewlgviwsgggtayt aafisrlniykdnsknqvffemnslqandtamyycarrgsypynyfdvwgqgttvtvssa kttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdl ytlsssvtvpsstwpsetvtcnvahpasstkvdkkivprdc
>1nc4B (B:) evklqesgpglvqpsqslsitctvsgfsltdygvhwvrqspgkglewlgviwsgggtayt aafisrlniykdnsknqvffemnslqandtamyycarrgsypynyfdvwgqgttvtvssa kttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdl ytlsssvtvpsstwpsetvtcnvahpasstkvdkkivpr
>1nc4C (C:) qavvtqesalttspgetvtltcrsstgavttsnyanwvqekpdhlftgliggnnnrppgv parfsgsligdkaaltiagtqtedeaiyfcalwysnhwvfgggtrltvlgqpksspsvtl fppsseeletnkatlvctitdfypgvvtvdwkvdgtpvtqgmettqpskqsnnkymassy ltltarawerhssyscqvtheghtvekslspaecs
>1nc4D (D:) qvklqesgpglvqpsqslsitctvsgfsltdygvhwvrqspgkglewlgviwsgggtayt aafisrlniykdnsknqvffemnslqandtamyycarrgsypynyfdvwgqgttvtvssa kttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdl ytlsssvtvpsstwpsetvtcnvahpasstkvdkkivprdc
>1nc4D (D:) qvklqesgpglvqpsqslsitctvsgfsltdygvhwvrqspgkglewlgviwsgggtayt aafisrlniykdnsknqvffemnslqandtamyycarrgsypynyfdvwgqgttvtvssa kttppsvyplapgssmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlytlss svtvpsstwpsetvtcnvahpasstkvdkkivprd