%0 Journal Article %T The dual nature of human extracellular superoxide dismutase: One sequence and two structures %A Petersen, Steen V. %A Oury, Tim D. %A Valnickova, Zuzana %A Thøgersen, Ida B. %A Højrup, Peter %A Crapo, James D. %A Enghild, Jan J. %J Proceedings of the National Academy of Sciences %@ 0027-8424 %D 2003-11-13 %I Proceedings of the National Academy of Sciences %~ DeepDyve