Chains and heterogens:
PDB Chain Sequences:
>1nga_ (-) mskgpavgidlgttyscvgvfqhgkveiiandqgnrttpsyvaftdterligdaaknqva mnptntvfdakrligrrfddavvqsdmkhwpfmvvndagrpkvqveykgetksfypeevs smvltkmkeiaeaylgktvtnavvtvpayfndsqrqatkdagtiaglnvlriinsptaaa iaygldkkvgaernvlifdlgggtfdvsiltiedgifevkstagdthlggedfdnrmvnh fiaefkrkhkkdisenkravrrlrtacerakrtlssstqasieidslyegidfytsitra rfeelnadlfrgtldpvekalrdakldksqihdivlvggstripkiqkllqdffngkeln ksinpdeavaygaavqaailsgdkse
>1nga_ (-) gpavgidlgttyscvgvfqhgkveiiandqgnrttpsyvaftdterligdaaknqvamnp tntvfdakrligrrfddavvqsdmkhwpfmvvndagrpkvqveykgetksfypeevssmv ltkmkeiaeaylgktvtnavvtvpayfndsqrqatkdagtiaglnvlriinsptaaaiay gldkkvgaernvlifdlgggtfdvsiltiedgifevkstagdthlggedfdnrmvnhfia efkrkhkkdisenkravrrlrtacerakrtlssstqasieidslyegidfytsitrarfe elnadlfrgtldpvekalrdakldksqihdivlvggstripkiqkllqdffngkelnksi npdeavaygaavqaails