Chains and heterogens:
PDB Chain Sequences:
>1nykA (A:) tpekeplkpgdilvyaqgggepkpirleelkpgdpfvlaypmdpktkvvksgeakntllv arfdpeelapevaqhaaegvvaysavcthlgcivsqwvadeeaalcpchggvydlrhgaq viagppprpvpqlpvrvedgvlvaageflgpvgvqasagaytwrv
>1nykA (A:) tpekeplkpgdilvyaqgggepkpirleelkpgdpfvlaypmdpktkvvksgeakntllv arfdpeelapevaqhaaegvvaysavcthlgcivsqwvadeeaalcpchggvydlrhgaq viagppprpvpqlpvrvedgvlvaageflgpvgvqa
>1nykB (B:) tpekeplkpgdilvyaqgggepkpirleelkpgdpfvlaypmdpktkvvksgeakntllv arfdpeelapevaqhaaegvvaysavcthlgcivsqwvadeeaalcpchggvydlrhgaq viagppprpvpqlpvrvedgvlvaageflgpvgvqasagaytwrv
>1nykB (B:) tpekeplkpgdilvyaqgggepkpirleelkpgdpfvlaypmdpktkvvksgeakntllv arfdpeelapevaqhaaegvvaysavcthlgcivsqwvadeeaalcpchggvydlrhgaq viagppprpvpqlpvrvedgvlvaageflgpvgvqa