Chains and heterogens:
PDB Chain Sequences:
>1c7sA (A:) dqqlvdqlsqlklnvkmldnragengvdcaalgadwascnrvlftlsndgqaidgkdwvi yfhsprqtlrvdndqfkiahltgdlykleptakfsgfpagkaveipvvaeywqlfrndfl prwyatsgdakpkmlantdtenldqfvapftgdqwkrtkddknilmtpasrfvsnadlqt lpagalrgkivptpmqvkvhaqdadlrkgvaldlstlvkpaadvvsqrfallgvpvqtng ypiktdiqpgkfkgamavsgayelkigkkeaqvigfdqagvfyglqsilslvpsdgsgki atldasdaprfpyrgifldvarnfhkkdavlrlldqmaayklnkfhfhlsddegwrieip glpeltevggqrchdlsettcllpqygqgpdvyggffsrqdyidiikyaqarqievipei dmpaharaavvsmearykklhaagkeqeanefrlvdqtdtsnttsvqffnrqsylnpcld ssqrfvdkvigeiaqmhkeagqpiktwhfggaeaknirlgagytdkakpepgkgiidqsn edkpwaksqvcqtmikegkvadmehlpsyfgqevsklvkahgidrmqawqdglkdaessk afatsrvgvnfwdtlywggfdsvndwankgyevvvsnpdyvymdfpyevnpdergyywgt rfsderkvfsfapdnmpqnaetsvdrdgnhfnaksdkpwpgayglsaqlwsetqrtdpqm eymifpralsvaerswhragweqdyragreykggethfvdtqalekdwlrfanilgqrel akldkggvayrlpvpgarvaggkleanialpglgieystdggkqwqrydakakpavsgev qvrsvspdgkrysraekv