Chains and heterogens:
PDB Chain Sequences:
>3ukd_ (-) skpnvvfvlggpgsgkgtqcanivrdfgwvhlsagdllrqeqqsgskdgemiatmiknge ivpsivtvkllknaidanqgknflvdgfprneennnsweenmkdfvdtkfvlffdcpeev mtqrllkrgessgrsddniesikkrfntfnvqtklvidhynkfdkvkiipanrdvnevyn dvenlfksmgf