Chains and heterogens:
PDB Chain Sequences:
>1zakA (A:) aladplkvmisgapasgkgtqceliktkyqlahisagdllraeiaagsengkrakefmek gqlvpdeivvnmvkerlrqpdaqengwlldgyprsysqamaletleirpdtfilldvpde llvervvgrrldpvtgkiyhlkysppeneeiasrltqrfddteekvklrletyyqniesl lstyeniivkvqgdatvdavfakidellgsilekknemvsst
>1zakA (A:) adplkvmisgapasgkgtqceliktkyqlahisagdllraeiaagsengkrakefmekgq lvpdeivvnmvkerlrqpdaqengwlldgyprsysqamaletleirpdtfilldvpdell vervvgrrldpvtgkiyhlkysppeneeiasrltqrfddteekvklrletyyqnieslls tyeniivkvqgdatvdavfakidellgsilekknemvsst
>1zakB (B:) aladplkvmisgapasgkgtqceliktkyqlahisagdllraeiaagsengkrakefmek gqlvpdeivvnmvkerlrqpdaqengwlldgyprsysqamaletleirpdtfilldvpde llvervvgrrldpvtgkiyhlkysppeneeiasrltqrfddteekvklrletyyqniesl lstyeniivkvqgdatvdavfakidellgsilekknemvsst
>1zakB (B:) adplkvmisgapasgkgtqceliktkyqlahisagdllraeiaagsengkrakefmekgq lvpdeivvnmvkerlrqpdaqengwlldgyprsysqamaletleirpdtfilldvpdell vervvgrrldpvtgkiyhlkysppeneeiasrltqrfddteekvklrletyyqnieslls tyeniivkvqgdatvdavfakidellgsilekknemvsst