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Sedimentation velocity of MA proteins. Shown are sedimentation coefficient distributions (c(s)) versus sedimentation coefficient (s) obtained from the sedimentation profiles of MA and MA122FD. Molecular weight distribution analysis indicates a largely monomeric MA and trimeric MA122FD species. Proteins were run using a buffer containing 50 mm sodium phosphate (pH 6.0) and 50 mm NaCl.
