Chains and heterogens:
PDB Chain Sequences:
>4ukd_ (-) skpnvvfvlggpgsgkgtqcanivrdfgwvhlsagdllrqeqqsgskdgemiatmiknge ivpsivtvkllknaidanqgknflvdgfprneennnsweenmkdfvdtkfvlffdcpeev mtqrllkrgessgrsddniesikkrfntfnvqtklvidhynkfdkvkiipanrdvnevyn dvenlfksmgf