Chains and heterogens:
PDB Chain Sequences:
>1n54A (A:) msrrrhsdendggqphkrrktsdanetedhleslickvgeksacslesnleglagvlead lpnykskilrllctvarllpekltiyttlvgllnarnynfggefveamirqlkeslkann yneavylvrflsdlvnchviaapsmvamfenfvsvtqeedvpqvrrdwyvyaflsslpwv gkelyekkdaemdrifantesylkrrqkthvpmlqvwtadkphpqeeyldclwaqiqklk kdrwqerhilrpylafdsilcealqhnlppftppphtedsvypmprvifrmfdytddpeg pvmpgshsverfvieenlhciikshwkerktcaaqlvsypgknkiplnyhivevifaelf qlpapphidvmyttllielcklqpgslpqvlaqatemlymrldtmnttcvdrfinwfshh lsnfqfrwswedwsdclsqdpespkpkfvrevlekcmrlsyhqrildivpptfsalcpan ptciykygdessnslpghsvalclavafkskatndeifsilkdvpnpnqdddddegfsfn plkievfvqtllhlaaksfshsfsalakfhevfktlaesdegklhvlrvmfevwrnhpqm iavlvdkmirtqivdcaavanwifsselsrdftrlfvweilhstirkmnkhvlkiqkele eakeklarqhkrrsddddrssdrkdgvleeqierlqekvesaqseqknlflvifqrfimi ltehlvrcetdgtsvltpwykncierlqqiflqhhqiiqqymvtlenllftaeldphila vfqqfcalqa
>1n54A (A:) anetedhleslickvgeksacslesnleglagvleadlpnykskilrllctvarllpekl tiyttlvgllnarnynfggefveamirqlkeslkannyneavylvrflsdlvnchviaap smvamfenfvsvtqeedvpqvrrdwyvyaflsslpwvgkelyekkdaemdrifantesyl krrqkthvpmlqvwtadkphpqeeyldclwaqiqklkkdrwqerhilrpylafdsilcea lqhnlppftppphtedsvypmprvifrmfdytddpegpvmpgshsverfvieenlhciik shwkerktcaaqlvsypgknkiplnyhivevifaelfqlpapphidvmyttllielcklq pgslpqvlaqatemlymrldtmnttcvdrfinwfshhlsnfqfrwswedwsdclsqdpes pkpkfvrevlekcmrlsyhqrildivpptfsalcpanptciykygdessnslpghsvalc lavafkskatndeifsilkdvpnfnplkievfvqtllhlaaksfshsfsalakfhevfkt laesdegklhvlrvmfevwrnhpqmiavlvdkmirtqivdcaavanwifsselsrdftrl fvweilhstirkmnkhvlkiqkeleeakekleeqierlqekvesaqseqknlflvifqrf imiltehlvrcetdgtsvltpwykncierlqqiflqhhqiiqqymvtlenllftaeldph ilavfqqfcalqa
>1n54B (B:) msggllkalrsdsyvelsqyrdqhfrgdneeqekllkksctlyvgnlsfytteeqiyelf sksgdikkiimgldkmkktacgfcfveyysradaenamryingtrlddriirtdwdagfk egrqygrgrsggqvrdeyrqdydagrggygklaqnq
>1n54B (B:) lkalrsdsyvelsqyrdqhfrgdneeqekllkksctlyvgnlsfytteeqiyelfsksgd ikkiimgldkmkktacgfcfveyysradaenamryingtrlddriirtdwdagfkegrqy g