Chains and heterogens:
PDB Chain Sequences:
>1n7nA (A:) vkdtytdrlddwngiiagnqyydskndqmaklnqelegkvadslssissqadriylwekf snyktsanltatyrkleemakqvtnpssryyqdetvvrtvrdsmewmhkhvynseksivg nwadyeigtprainntlslmkeyfsdeeikkytdviekfvpdpehfrkttdnpfkalggn lvdmgrvkviagllrkddqeisstirsieqvfklvdqgegfyqdgsyidhtnvaytgayg nvlidglsqllpviqktknpidkdkmqtmyhwidksfapllvngelmdmsrgrsisrans eghvaavevlrgihriadmsegetkqrlqslvktivqsdsyydvfknlktykdislmqsl lsdagvasvprtsylsafnkmdktamynaekgfgfglslfssrtlnyehmnkenkrgwyt sdgmfylyngdlshysdgywptvnpykmpgttetdakradsdtgkvlpsafvgtskldda natatmdftnwnqtltahkswfmlkdkiaflgsniqntstdtaattidqrklessnpykv yvndkeaslteqekdypetqsvflessdskknigyfffkkssismskalqkgawkdineg qsdkevenefltisqahkqngdsygymlipnvdratfnqmikelessliennetlqsvyd akqgvwgivkyddsvstisnqfqvlkrgvytirkegdeykiayynpetqesapdqevfkk l