Chains and heterogens:
PDB Chain Sequences:
>5k44A (A:) smadrgdsgdsdfvvvanrlpidlerapdgttswkrspgglvtalepllrrrrgawigwp gipdsdedpivdgdlvlypvrlsaddvaqyyegfsnatlwplyhdvivkpiynrqwwery vevnrrfaeatsraaargatvwvqdyqlqlvpkmlrelrpdltigfflhipfppvelfmq lpwrteitdgllgadlvgfhlpggaqnflflarrlvgantsrasvgvrskfgevqigsrt vkvgafpisidsadldrqarqrsirqrarqiraelgnprrillgvdrldytkgidvrlqa faellaegrvnredtvfvqlatpsrerveayrllrddierqvghingeygevghpvvhyl hrpvpreeliaffvaadvmlvtplrdgmnlvakeyvacrsdlggalvlseftgaaaelgq aylvnphnldhvkdtmvaalnqtpeegrrrmralrrqvlahdvdlwarsfldalastrtg dadavpv
>5k44A (A:) gdsdfvvvanrlpidwkrspgglvtalepllrrrrgawigwpgipdsdedpivdgdlvly pvrlsaddvaqyyegfsnatlwplyhdvivkpiynrqwweryvevnrrfaeatsraaarg atvwvqdyqlqlvpkmlrelrpdltigfflhipfppvelfmqlpwrteitdgllgadlvg fhlpggaqnflflarrlvgantsrasvgvrskfgevqigsrtvkvgafpisidsadldrq arqrsirqrarqiraelgnprrillgvdrldytkgidvrlqafaellaegrvnredtvfv qlatpsrerveayrllrddierqvghingeygevghpvvhylhrpvpreeliaffvaadv mlvtplrdgmnlvakeyvacrsdlggalvlseftgaaaelgqaylvnphnldhvkdtmva alnqtpeegrrrmralrrqvlahdvdlwarsfldalastr