Chains and heterogens:
PDB Chain Sequences:
>4u72A (A:) gshmahamenswtiskeyhideevgfalpnpqenlpdfyndwmfiakhlpdliesgqlre rveklnmlsidhltdhksqrlarlvlgcitmayvwgkghgdvrkvlprniavpycqlskk lelppilvyadcvlanwkkkdpnkpltyenmdvlfsfrdgdcskgfflvsllveiaaasa ikviptvfkamqmqerdtllkalleiasclekalqvfhqihdhvnpkaffsvlriylsgw kgnpqlsdglvyegfwedpkefgggsagqssvfqcfdvllgiqqtaggghaaqflqdmrr ymppahrnflcslesnpsvrefvlskgdaglreaydacvkalvslrsyhlqivtkyilip asqqpkenktsedpskleakgtggtdlmnflktvrstteksllkeg
>4u72A (A:) skeyhideevgfalpnpqenlpdfyndwmfiakhlpdliesgqlrerveklnmlsidhlt dhksqrlarlvlgcitmayvwgkghgdvrkvlprniavpycqlskklelppilvyadcvl anwkkkdpnkpltyenmdvlfsfrdgdcskgfflvsllveiaaasaikviptvfkamqmq erdtllkalleiasclekalqvfhqihdhvnpkaffsvlriylsgwkgnpqlsdglvyeg fwedpkefgggsagqssvfqcfdvllgiqqtaggghaaqflqdmrrymppahrnflcsle snpsvrefvlskgdaglreaydacvkalvslrsyhlqivtkyilipasqqpggtdlmnfl ktvrstteksllkeg
>4u72B (B:) gshmahamenswtiskeyhideevgfalpnpqenlpdfyndwmfiakhlpdliesgqlre rveklnmlsidhltdhksqrlarlvlgcitmayvwgkghgdvrkvlprniavpycqlskk lelppilvyadcvlanwkkkdpnkpltyenmdvlfsfrdgdcskgfflvsllveiaaasa ikviptvfkamqmqerdtllkalleiasclekalqvfhqihdhvnpkaffsvlriylsgw kgnpqlsdglvyegfwedpkefgggsagqssvfqcfdvllgiqqtaggghaaqflqdmrr ymppahrnflcslesnpsvrefvlskgdaglreaydacvkalvslrsyhlqivtkyilip asqqpkenktsedpskleakgtggtdlmnflktvrstteksllkeg
>4u72B (B:) iskeyhideevgfalpnpqenlpdfyndwmfiakhlpdliesgqlrerveklnmlsidhl tdhksqrlarlvlgcitmayvwgkghgdvrkvlprniavpycqlskklelppilvyadcv lanwkkkdpnkpltyenmdvlfsfrdgdcskgfflvsllveiaaasaikviptvfkamqm qerdtllkalleiasclekalqvfhqihdhvnpkaffsvlriylsgwkgnpqlsdglvye gfwedpkefgggsagqssvfqcfdvllgiqqtaggghaaqflqdmrrymppahrnflcsl esnpsvrefvlskgdaglreaydacvkalvslrsyhlqivtkyilipasqggtdlmnflk tvrstteksllkeg