2KSC:
reference: Functional and structural characterization of the 2/2 hemoglobin from Synechococcus sp. PCC 7002., Scott NL, Xu Y, Shen G, Vuletich DA, Falzone CJ, Li Z, Ludwig M, Pond MP, Preimesberger MR, Bryant DA, Lecomte JT, Biochemistry. 2010 Aug 24;49(33):7000-11. PMID: 20669934

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