Chains and heterogens:
PDB Chain Sequences:
>1c7tA (A:) dqqlvdqlsqlklnvkmldnragengvdcaalgadwascnrvlftlsndgqaidgkdwvi yfhsprqtlrvdndqfkiahltgdlykleptakfsgfpagkaveipvvaeywqlfrndfl prwyatsgdakpkmlantdtenldqfvapftgdqwkrtkddknilmtpasrfvsnadlqt lpagalrgkivptpmqvkvhaqdadlrkgvaldlstlvkpaadvvsqrfallgvpvqtng ypiktdiqpgkfkgamavsgayelkigkkeaqvigfdqagvfyglqsilslvpsdgsgki atldasdaprfpyrgifldvarnfhkkdavlrlldqmaayklnkfhfhlsddegwrieip glpeltevggqrchdlsettcllpqygqgpdvyggffsrqdyidiikyaqarqievipei dmpaharaavvsmearykklhaagkeqeanefrlvdqtdtsnttsvqffnrqsylnpcld ssqrfvdkvigeiaqmhkeagqpiktwhfggddaknirlgagytdkakpepgkgiidqsn edkpwaksqvcqtmikegkvadmehlpsyfgqevsklvkahgidrmqawqdglkdaessk afatsrvgvnfwdtlywggfdsvndwankgyevvvsnpdyvymdfpyevnpdergyywgt rfsderkvfsfapdnmpqnaetsvdrdgnhfnaksdkpwpgayglsaqlwsetqrtdpqm eymifpralsvaerswhragweqdyragreykggethfvdtqalekdwlrfanilgqrel akldkggvayrlpvpgarvaggkleanialpglgieystdggkqwqrydakakpavsgev qvrsvspdgkrysraekv