Chains and heterogens:
PDB Chain Sequences:
>1caz_ (-) hhwgygkhngpehwhkdfpiakgerqspvdidthtakydpslkplsvsydqatslrilnn ghafnvefddsqdkavlkggpldgtyrliqfhfhwgsldgqgsqhtvdkkkyaaelhlvh wntkygdfgkavqqpdglavlgiflkvgsakpglqkvvdvldsiktkgksadftnfdprg llpesldywtypgslttppllecvtwivlkepisvsseqvlkfrklnfngegepeelmvd nwrpaqplknrqikasfk