Chains and heterogens:
PDB Chain Sequences:
>1atrA (A:) mskgpavgidlgttyscvgvfqhgkveiiandqgnrttpsyvaftdterligdaaknqva mnptntvfdakrligrrfddavvqsdmkhwpfmvvndagrpkvqveykgetksfypeevs smvltkmkeiaeaylgktvtnavvtvpayfndsqrqatkdagtiaglnvlriineptaaa iaygldkkvgaernvlifdlgggvfdvsiltiedgifevkstagdthlggedfdnrmvnh fiaefkrkhkkdisenkravrrlrtacerakrtlssstqasieidslyegidfytsitra rfeelnadlfrgtldpvekalrdakldksqihdivlvggstripkiqkllqdffngkeln ksinpdeavaygaavqaailsgdkse
>1atrA (A:) skgpavgidlgttyscvgvfqhgkveiiandqgnrttpsyvaftdterligdaaknqvam nptntvfdakrligrrfddavvqsdmkhwpfmvvndagrpkvqveykgetksfypeevss mvltkmkeiaeaylgktvtnavvtvpayfndsqrqatkdagtiaglnvlriineptaaai aygldkkvgaernvlifdlgggvfdvsiltiedgifevkstagdthlggedfdnrmvnhf iaefkrkhkkdisenkravrrlrtacerakrtlssstqasieidslyegidfytsitrar feelnadlfrgtldpvekalrdakldksqihdivlvggstripkiqkllqdffngkelnk sinpdeavaygaavqaailsgdk