Chains and heterogens:
PDB Chain Sequences:
>1ttuA (A:) gplgsgdsvqsltsdrmidflsnkekyecvisifhakvaqksygnekrffcpppciylig qgwklkkdrvaqlyktlkasaqkdaaiendpiheqqatelvayigigsdtserqqldfst gkvrhpgdqrqdpniydycaaktlyisdsdkrkyfdlnaqffygcgmeiggfvsqrikvi skpskkkqsmkntdckylciasgtkvalfnrlrsqtvstrylhvegnafhasstkwgaft ihlfdderglqetdnfavrdgfvyygsvvklvdsvtgialprlrirkvdkqqvildascs eepvsqlhkcafqmidnelvylclshdkiiqhqatainehrhqindgaawtiistdkaey rffeamgqvanpispcpvvgslevdghgeasrvelhgrdfkpnlkvwfgatpvettfrse eslhcsippvsqvrneqthwmftnrttgdvevpislvrddgvvyssgltfsyksler
>1ttuA (A:) vqsltsdrmidflsnkekyecvisifhakvaqksygnekrffcpppciyligqgwklkkd rvaqlykteqqatelvayigigsdtserqqldfpniydycaaktlyisdsdkrkyfdlna qffygcgmeiggfvsqrikviskpskkkqsmkntdckylciasgtkvalfnrlrsqtvst rylhvegnafhasstkwgaftihlfdderglqetdnfavrdgfvyygsvvklvdsvtgia lprlrirkvdkqqvildascseepvsqlhkcafqmidnelvylclshdkiiqhqataine hrhqindgaawtiistdkaeyrffeamgqvanpispcpvvgslevdghgeasrvelhgrd fkpnlkvwfgatpvettfrseeslhcsippvsqvrneqthwmftnrttgdvevpislvrd dgvvyssgltfsyks