Chains and heterogens:
PDB Chain Sequences:
>1b52A (A:) advpagvqladkqtlvrnngsevqsldphkiegvpesnvsrdlfegllisdveghpspgv aekwenkdfkvwtfhlrenakwsdgtpvtahdfvyswqrladpntaspyasylqyghian iddiiagkkpatdlgvkalddhtfevtlsepvpyfykllvhpsvspvpksavekfgdkwt qpanivtngayklknwvvnerivlernpqywdnaktvinqvtylpissevtdvnryrsge idmtynnmpielfqklkkeipnevrvdpylctyyyeinnqkapfndvrvrtalklaldrd iivnkvknqgdlpaysytppytdgaklvepewfkwsqqkrneeakkllaeagftadkplt fdllyntsdlhkklaiavasiwkknlgvnvnlenqewktfldtrhqgtfdvaragwcady neptsflntmlsdssnntahykspafdkliadtlkvaddtqrselyakaeqqldkdsaiv pvyyyvnarlvkpwvggytgkdpldniyvknlyiikh
>1b52A (A:) advpagvqladkqtlvrnngsevqsldphkiegvpesnvsrdlfegllisdveghpspgv aekwenkdfkvwtfhlrenakwsdgtpvtahdfvyswqrladpntaspyasylqyghian iddiiagkkpatdlgvkalddhtfevtlsepvpyfykllvhpsvspvpksavekfgdkwt qpanivtngayklknwvvnerivlernpqywdnaktvinqvtylpissevtdvnryrsge idmtynnmpielfqklkkeipnevrvdpylctyyyeinnqkapfndvrvrtalklaldrd iivnkvknqgdlpaysytppytdgaklvepewfkwsqqkrneeakkllaeagftapltfd llyntsdlhkklaiavasiwkknlgvnvnlenqewktfldtrhqgtfdvaragwcadyne ptsflntmlsdssnntahykspafdkliadtlkvaddtqrselyakaeqqldkdsaivpv yyyvnarlvkpwvggytgkdpldniyvknlyiikh