A mutation that improves soluble recombinant hemoglobin accumulation in Escherichia coli in heme excess.

Abstract

High-level expression of soluble recombinant human hemoglobin (rHb) in Escherichia coli was obtained with several hemoglobin variants. Under identical conditions, two rHbs containing the Presbyterian mutation (Asn-108-->Lys) in beta-globin accumulated to approximately twofold less soluble globin than rHbs containing the corresponding wild-type beta-globin… (More)

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