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