Chains and heterogens:
PDB Chain Sequences:
>1a4eA (A:) dvredrvvtnstgnpinepfvtqrigehgplllqdynlidslahfnrenipqrnphahgs gafgyfevtdditdicgsamfskigkrtkcltrfstvggdkgsadtvrdprgfatkfyte egnldwvynntpvffirdpskfphfihtqkrnpqtnlrdadmfwdflttpenqvaihqvm ilfsdrgtpanyrsmhgysghtykwsnkngdwhyvqvhiktdqgiknltieeatkiagsn pdycqqdlfeaiqngnypswtvyiqtmterdakklpfsvfdltkvwpqgqfplrrvgkiv lnenplnffaqveqaafapsttvpyqeasadpvlqarlfsyadahryrlgpnfhqipvnc pyaskffnpairdgpmnvngnfgseptylandksytyiqqdrpiqqhqevwngpaipyhw atspgdvdfvqarnlyrvlgkqpgqqknlaynigihvegacpqiqqrvydmfarvdkgls eaikkvae
>1a4eB (B:) dvredrvvtnstgnpinepfvtqrigehgplllqdynlidslahfnrenipqrnphahgs gafgyfevtdditdicgsamfskigkrtkcltrfstvggdkgsadtvrdprgfatkfyte egnldwvynntpvffirdpskfphfihtqkrnpqtnlrdadmfwdflttpenqvaihqvm ilfsdrgtpanyrsmhgysghtykwsnkngdwhyvqvhiktdqgiknltieeatkiagsn pdycqqdlfeaiqngnypswtvyiqtmterdakklpfsvfdltkvwpqgqfplrrvgkiv lnenplnffaqveqaafapsttvpyqeasadpvlqarlfsyadahryrlgpnfhqipvnc pyaskffnpairdgpmnvngnfgseptylandksytyiqqdrpiqqhqevwngpaipyhw atspgdvdfvqarnlyrvlgkqpgqqknlaynigihvegacpqiqqrvydmfarvdkgls eaikkvae
>1a4eC (C:) dvredrvvtnstgnpinepfvtqrigehgplllqdynlidslahfnrenipqrnphahgs gafgyfevtdditdicgsamfskigkrtkcltrfstvggdkgsadtvrdprgfatkfyte egnldwvynntpvffirdpskfphfihtqkrnpqtnlrdadmfwdflttpenqvaihqvm ilfsdrgtpanyrsmhgysghtykwsnkngdwhyvqvhiktdqgiknltieeatkiagsn pdycqqdlfeaiqngnypswtvyiqtmterdakklpfsvfdltkvwpqgqfplrrvgkiv lnenplnffaqveqaafapsttvpyqeasadpvlqarlfsyadahryrlgpnfhqipvnc pyaskffnpairdgpmnvngnfgseptylandksytyiqqdrpiqqhqevwngpaipyhw atspgdvdfvqarnlyrvlgkqpgqqknlaynigihvegacpqiqqrvydmfarvdkgls eaikkvae
>1a4eD (D:) dvredrvvtnstgnpinepfvtqrigehgplllqdynlidslahfnrenipqrnphahgs gafgyfevtdditdicgsamfskigkrtkcltrfstvggdkgsadtvrdprgfatkfyte egnldwvynntpvffirdpskfphfihtqkrnpqtnlrdadmfwdflttpenqvaihqvm ilfsdrgtpanyrsmhgysghtykwsnkngdwhyvqvhiktdqgiknltieeatkiagsn pdycqqdlfeaiqngnypswtvyiqtmterdakklpfsvfdltkvwpqgqfplrrvgkiv lnenplnffaqveqaafapsttvpyqeasadpvlqarlfsyadahryrlgpnfhqipvnc pyaskffnpairdgpmnvngnfgseptylandksytyiqqdrpiqqhqevwngpaipyhw atspgdvdfvqarnlyrvlgkqpgqqknlaynigihvegacpqiqqrvydmfarvdkgls eaikkvae