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