Fig. 5From: Improving the thermostability and stress tolerance of an archaeon hyperthermophilic superoxide dismutase by fusion with a unique N-terminal domainAnalysis of the oligomerization states of SOD Ss and rSOD Ss . The sizes of SOD Ss and rSOD Ss were determined by analytical ultracentrifugation. The estimated molecular masses (kDa) are provided above the peaksBack to article page