Chains and heterogens:
PDB Chain Sequences:
>7ah4A (A:) mgsshhhhhhssglvprgshmasamenswtiskeyhideevgfalpnpqenlpdfyndwm fiakhlpdliesgqlrerveklnmlsidhltdhksqrlarlvlgcitmayvwgkghgdvr kvlprniavpycqlskklelppilvyadcvlanwkkkdpnkpltyenmdvlfsfrdgdcs kgfflvsllveiaaasaikviptvfkamqmqerdtllkalleiasclekalqvfhqihdh vnpkaffsvlriylsgwkgnpqlsdglvyegfwedpkefaggsagqssvfqcfdvllgiq qtaggghaaqflqdmrrymppahrnflcslesnpsvrefvlskgdaglreaydacvkalv slrsyhlqivtkyilipasqqpkenktsedpskleakgtggtdlmnflktvrstteksll keg
>7ah4A (A:) keyhideevgfalpnpqenlpdfyndwmfiakhlpdliesgqlrerveklnmlsidhltd hksqrlarlvlgcitmayvwgkghgdvrkvlprniavpycqlskklelppilvyadcvla nwkkkdpnkpltyenmdvlfsfrdgdcskgfflvsllveiaaasaikviptvfkamqmqe rdtllkalleiasclekalqvfhqihdhvnpkaffsvlriylsgwkgnpqlsdglvyegf wedpkefaggsagqssvfqcfdvllgiqqtaggghaaqflqdmrrymppahrnflcsles npsvrefvlskgdaglreaydacvkalvslrsyhlqivtkyilipasqgtdlmnflktvr stteksllkeg
>7ah4B (B:) mgsshhhhhhssglvprgshmasamenswtiskeyhideevgfalpnpqenlpdfyndwm fiakhlpdliesgqlrerveklnmlsidhltdhksqrlarlvlgcitmayvwgkghgdvr kvlprniavpycqlskklelppilvyadcvlanwkkkdpnkpltyenmdvlfsfrdgdcs kgfflvsllveiaaasaikviptvfkamqmqerdtllkalleiasclekalqvfhqihdh vnpkaffsvlriylsgwkgnpqlsdglvyegfwedpkefaggsagqssvfqcfdvllgiq qtaggghaaqflqdmrrymppahrnflcslesnpsvrefvlskgdaglreaydacvkalv slrsyhlqivtkyilipasqqpkenktsedpskleakgtggtdlmnflktvrstteksll keg
>7ah4B (B:) skeyhideevgfalpnpqenlpdfyndwmfiakhlpdliesgqlrerveklnmlsidhlt dhksqrlarlvlgcitmayvwgkghgdvrkvlprniavpycqlskklelppilvyadcvl anwkkkdpnkpltyenmdvlfsfrdgdcskgfflvsllveiaaasaikviptvfkamqmq erdtllkalleiasclekalqvfhqihdhvnpkaffsvlriylsgwkgnpqlsdglvyeg fwedpkefaggsagqssvfqcfdvllgiqqtaggghaaqflqdmrrymppahrnflcsle snpsvrefvlskgdaglreaydacvkalvslrsyhlqivtkyilipasqqggtdlmnflk tvrstteksllk