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. 2003 Mar 24;100(7):3808–3813. doi: 10.1073/pnas.0737977100

Table 3.

Apparent molecular weights of apo-DtxR determined by analytical ultracentrifugation

Protein concentration, μM Apparent molecular weight
31.9 45,200
7.98 45,700
3.99 49,500
1.60 38,900
0.80 38,200
0.40 38,800