Chains and heterogens:
PDB Chain Sequences:
>7a42A (A:) ghmpdladlfpgfgsewintssgrifarvggdgppllllhgfpqthvmwhrvapklaerf kvivadlpgygwsdmpesdeqhtpytkramakqlieameqlghvhfalaghdrgarvsyr laldspgrlsklavldilptyeywqrmnrayalkiyhwsflaqpaplpenllggdpdfyv kaklaswtragdlsafdpravehyriafadpmrrhvmcedyragayadfehdkidveagn kipvpmlalwgasgiaqsaatpldvwrkwasdvqgapiesghflpeeapdqtaealvrff saapgs
>7a42A (A:) dladlfpgfgsewintssgrifarvggdgppllllhgfpqthvmwhrvapklaerfkviv adlpgygwsdmpesdeqhtpytkramakqlieameqlghvhfalaghdrgarvsyrlald spgrlsklavldilptyeywqrmnrayalkiyhwsflaqpaplpenllggdpdfyvkakl aswtragdlsafdpravehyriafadpmrrhvmcedyragayadfehdkidveagnkipv pmlalwgasgiaqsaatpldvwrkwasdvqgapiesghflpeeapdqtaealvrffsa
>7a42B (B:) ghmpdladlfpgfgsewintssgrifarvggdgppllllhgfpqthvmwhrvapklaerf kvivadlpgygwsdmpesdeqhtpytkramakqlieameqlghvhfalaghdrgarvsyr laldspgrlsklavldilptyeywqrmnrayalkiyhwsflaqpaplpenllggdpdfyv kaklaswtragdlsafdpravehyriafadpmrrhvmcedyragayadfehdkidveagn kipvpmlalwgasgiaqsaatpldvwrkwasdvqgapiesghflpeeapdqtaealvrff saapgs
>7a42B (B:) dladlfpgfgsewintssgrifarvggdgppllllhgfpqthvmwhrvapklaerfkviv adlpgygwsdmpesdeqhtpytkramakqlieameqlghvhfalaghdrgarvsyrlald spgrlsklavldilptyeywqrmnrayalkiyhwsflaqpaplpenllggdpdfyvkakl aswtragdlsafdpravehyriafadpmrrhvmcedyragayadfehdkidveagnkipv pmlalwgasgiaqsaatpldvwrkwasdvqgapiesghflpeeapdqtaealvrffs