Chains and heterogens:
PDB Chain Sequences:
>1n7rA (A:) vkdtytdrlddwngiiagnqyydskndqmaklnqelegkvadslssissqadriylwekf snyktsanltatyrkleemakqvtnpssryyqdetvvrtvrdsmewmhkhvynseksivg naadyeigtprainntlslmkeyfsdeeikkytdviekfvpdpehfrkttdnpvkalggn lvdmgrvkviagllrkddqeisstirsieqvfklvdqgegfyqdgsyidhtnvaytgayg nvlidglsqllpviqktknpidkdkmqtmyhwidksfapllvngelmdmsrgrsisrans eghvaavevlrgihriadmsegetkqrlqslvktivqsdsyydvfknlktykdislmqsl lsdagvasvprtsylsafnkmdktamynaekgfgfglslfssrtlnyehmnkenkrgwyt sdgmfylyngdlshysdgywptvnpykmpgttetdakradsdtgkvlpsafvgtskldda natatmdftnwnqtltahkswfmlkdkiaflgsniqntstdtaattidqrklessnpykv yvndkeaslteqekdypetqsvflessdskknigyfffkkssismskalqkgawkdineg qsdkevenefltisqahkqngdsygymlipnvdratfnqmikelessliennetlqsvyd akqgvwgivkyddsvstisnqfqvlkrgvytirkegdeykiayynpetqesapdqevfkk l