Chains and heterogens:
PDB Chain Sequences:
>3u20A (A:) gpgsmkvekvffvtspiyyvnaaphighvystlitdvigryhrvkgervfaltgtdehgq kvaeaakqkqvspydfttavagefkkcfeqmdysidyfirttneqhkavvkelwtkleqk gdiylgryegwysisdesfltpqnitdgvdkdgnpckvslesghvvtwvseenymfrlsa frerllewyhanpgcivpefrrreviravekglpdlsvsraratlhnwaipvpgnpdhcv yvwldaltnyltgsrlrvdesgkevslvddfnelerfpadvhvigkdilkfhaiywpafl lsaglplpkkivahgwwtkdrkkiskslgnvfdpvekaeefgydalkyfllresgfsddg dysdknmiarlngeladtlgnlvmrctsakinvngewpspaayteedesliqlikdlpgt adhyylipdiqkaiiavfdvlrainayvtdmapwklvktdperlrtvlyitlegvrvttl llspilprksvvifdmlgvpevhrkgienfefgavppgtrlgpavegevlfskrstentk st
>3u20A (A:) vekvffvtspiyyvnaaphighvystlitdvigryhrvkgervfaltgtdehgqkvaeaa kqkqvspydfttavagefkkcfeqmdysidyfirttneqhkavvkelwtkleqkgdiylg ryegwysisdesfltpqnitdgvdkdgnpckvslesghvvtwvseenymfrlsafrerll ewyhanpgcivpefrrreviravekglpdlsvsraratlhnwaipvpgnpdhcvyvwlda ltnyltgsrlrvdesgkevslvddfnelerfpadvhvigkdilkfhaiywpafllsaglp lpkkivahgwwtkdrkkiskslgnvfdpvekaeefgydalkyfllresgfsddgdysdkn miarlngeladtlgnlvmrctsakinvngewpspaayteedesliqlikdlpgtadhyyl ipdiqkaiiavfdvlrainayvtdmapwklvktdperlrtvlyitlegvrvttlllspil prksvvifdmlgvpevhrkgienfefgavppgtrlgpavegevlfskrst
>3u20B (B:) gpgsmkvekvffvtspiyyvnaaphighvystlitdvigryhrvkgervfaltgtdehgq kvaeaakqkqvspydfttavagefkkcfeqmdysidyfirttneqhkavvkelwtkleqk gdiylgryegwysisdesfltpqnitdgvdkdgnpckvslesghvvtwvseenymfrlsa frerllewyhanpgcivpefrrreviravekglpdlsvsraratlhnwaipvpgnpdhcv yvwldaltnyltgsrlrvdesgkevslvddfnelerfpadvhvigkdilkfhaiywpafl lsaglplpkkivahgwwtkdrkkiskslgnvfdpvekaeefgydalkyfllresgfsddg dysdknmiarlngeladtlgnlvmrctsakinvngewpspaayteedesliqlikdlpgt adhyylipdiqkaiiavfdvlrainayvtdmapwklvktdperlrtvlyitlegvrvttl llspilprksvvifdmlgvpevhrkgienfefgavppgtrlgpavegevlfskrstentk st
>3u20B (B:) gpgsmkvekvffvtspiyyvnaaphighvystlitdvigryhrvkgervfaltgtdehgq kvaeaakqkqvspydfttavagefkkcfeqmdysidyfirttneqhkavvkelwtkleqk gdiylgryegwysisdesfltpqnitdgvdkdgnpckvslesghvvtwvseenymfrlsa frerllewyhanpgcivpefrrreviravekglpdlsvsraratlhnwaipvpgnpdhcv yvwldaltnyltgsrlrvdesgkevslvddfnelerfpadvhvigkdilkfhaiywpafl lsaglplpkkivahgwwtkdrkkiskslgnvfdpvekaeefgydalkyfllresgfsddg dysdknmiarlngeladtlgnlvmrctsakinvngewpspaayteedesliqlikdlpgt adhyylipdiqkaiiavfdvlrainayvtdmapwklvktdperlrtvlyitlegvrvttl llspilprksvvifdmlgvpevhrkgienfefgavppgtrlgpavegevlfskrst