Chains and heterogens:
PDB Chain Sequences:
>1qapA (A:) ddrrdallerinldipaavaqalredlggevdagnditaqllpadtqahatvitredgvf cgkrwveevfiqlagddvrltwhvddgdaihanqtvfelqgparvlltgertalnfvqtl sgvasevrryvgllagtqtqlldtrktlpglrtalkyavlcggganhrlgltdafliken hiiasgsvrqavekafwlhpdvpvevevenldelddalkagadiimldnfntdqmreavk rvngqarlevsgnvtaetlrefaetgvdfisvgaltkhvraldlsmrfc
>1qapB (B:) ddrrdallerinldipaavaqalredlggevdagnditaqllpadtqahatvitredgvf cgkrwveevfiqlagddvrltwhvddgdaihanqtvfelqgparvlltgertalnfvqtl sgvasevrryvgllagtqtqlldtrktlpglrtalkyavlcggganhrlgltdafliken hiiasgsvrqavekafwlhpdvpvevevenldelddalkagadiimldnfntdqmreavk rvngqarlevsgnvtaetlrefaetgvdfisvgaltkhvraldlsmrfc