1D8U:
reference: Crystal structure of a nonsymbiotic plant hemoglobin., Hargrove MS, Brucker EA, Stec B, Sarath G, Arredondo-Peter R, Klucas RV, Olson JS, Phillips GN Jr, Structure Fold Des 2000 Sep 15;8(9):1005-14. PMID: 10986467

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