Chains and heterogens:
PDB Chain Sequences:
>1ccu_ (-) wgygkhngpehwhkdfpiakgerqspvdidthtakydpslkplsvsydqatslrilnngh afnvefddsqdkavlkggpldgtyrliqfhfhwgsldgqgsehtvdkkkyaaelhlvhwn tkygdfgkavqqpdglavlgiflkvgsakpglqkvvdvldsiktkgksadftnfdprgll pesldywtypgslhtppllecvtwivlkepisvsseqvlkfrklnfngegepeelmvdnw rpaqplknrqikasf