Chains and heterogens:
PDB Chain Sequences:
>1g4rA (A:) rvfkkaspngkltvylgkrdfvdhidlvepvdgvvlvdpeylkerrvyvtltcafrygre dldvlgltfrkdlfvanvqsfppapedkkpltrlqerlikklgehaypftfeippnlpcs vtlqpgpedtgkacgvdyevkafcaenleekihkrnsvrlvirkvqyaperpgpqptaet trqflmsdkplhleasldkeiyyhgepisvnvhvtnntnktvkkikisvrqyadiclfnt aqykcpvameeaddtvapsstfckvytltpflannrekrglaldgklkhedtnlasstll reganreilgiivsykvkvklvvsrggllgdlassdvavelpftlmhpkpkeepphrevp ehetpvdtnlieldtndddivfedfar
>1g4rA (A:) rvfkkaspngkltvylgkrdfvdhidlvepvdgvvlvdpeylkerrvyvtltcafrygre dldvlgltfrkdlfvanvqsfppapedkkpltrlqerlikklgehaypftfeippnlpcs vtlqpgpedtgkacgvdyevkafcaenleekihkrnsvrlvirkvqyaperpgpqptaet trqflmsdkplhleasldkeiyyhgepisvnvhvtnntnktvkkikisvrqyadiclfnt aqykcpvameeaddtvapsstfckvytltpflannrekrglaldgklkhedtnlasstll reganreilgiivsykvkvklvvsdlassdvavelpftlmhpkpdivfedfar