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Table 3 Sedimentation equilibrium model analysis of R. capsulatus PBGS. All numbers reported are the square root of variance (×10-3) from the fits of the various models to the data. The data for all speeds were fit globally to individual models

From: Rhodobacter capsulatus porphobilinogen synthase, a high activity metal ion independent hexamer

Model (.1 mM DTT) (1 mM BME)
single species 10.50 8.20
hexamer 10.49 8.38
6----->8 10.51 8.27
6----->10 10.52 8.32
6----->12 10.54 8.36
4----->8 12.98 9.82