Chains and heterogens:
PDB Chain Sequences:
>4u0xA (A:) dntpkdqeikklvdqnfkpllekydvpgmavgviqnnkkyemyyglqsvqdkkavnsnti felgsvsklftataggyaknkgkisfddtpgkywkelkntpidqvnllqlatytsgnlal qfpdevqtdqqvltffkdwkpknpigeyrqysnpsiglfgkvvalsmnkpfdqvlektif palglkhsyvnvpktqmqnyafgynqenqpirvnpgpldapaygvkstlpdmlsfihanl npqkyptdiqrainethqgryqvntmyqalgweefsypatlqtlldsnseqivmkpnkvt aiskepsvkmyhktgstsgfgtyvvfipkeniglvmltnkripneerikaayvvlnaikk
>4u0xA (A:) kdqeikklvdqnfkpllekydvpgmavgviqnnkkyemyyglqsvqdkkavnsntifelg svsklftataggyaknkgkisfddtpgkywkelkntpidqvnllqlatytsgnlalqfpd evqtdqqvltffkdwkpknpigeyrqysnpsiglfgkvvalsmnkpfdqvlektifpalg lkhsyvnvpktqmqnyafgynqenqpirvnpgpldapaygvkstlpdmlsfihanlnpqk yptdiqrainethqgryqvntmyqalgweefsypatlqtlldsnseqivmkpnkvtaisk epsvkmyhktgstsgfgtyvvfipkeniglvmltnkripneerikaayvvlnaik
>4u0xB (B:) dntpkdqeikklvdqnfkpllekydvpgmavgviqnnkkyemyyglqsvqdkkavnsnti felgsvsklftataggyaknkgkisfddtpgkywkelkntpidqvnllqlatytsgnlal qfpdevqtdqqvltffkdwkpknpigeyrqysnpsiglfgkvvalsmnkpfdqvlektif palglkhsyvnvpktqmqnyafgynqenqpirvnpgpldapaygvkstlpdmlsfihanl npqkyptdiqrainethqgryqvntmyqalgweefsypatlqtlldsnseqivmkpnkvt aiskepsvkmyhktgstsgfgtyvvfipkeniglvmltnkripneerikaayvvlnaikk
>4u0xB (B:) ntpkdqeikklvdqnfkpllekydvpgmavgviqnnkkyemyyglqsvqdkkavnsntif elgsvsklftataggyaknkgkisfddtpgkywkelkntpidqvnllqlatytsgnlalq fpdevqtdqqvltffkdwkpknpigeyrqysnpsiglfgkvvalsmnkpfdqvlektifp alglkhsyvnvpktqmqnyafgynqenqpirvnpgpldapaygvkstlpdmlsfihanln pqkyptdiqrainethqgryqvntmyqalgweefsypatlqtlldsnseqivmkpnkvta iskepsvkmyhktgstsgfgtyvvfipkeniglvmltnkripneerikaayvvlnaik