Figure 7
SEC-MALS. (a) A typical SEC-MALS run (10 mg ml−1 VcParD2, 20 mM Tris pH 8.0, 150 mM NaCl, 1 mM TCEP). The observed elution peak and plateau for molecular mass is representative of all conditions tested. (b) MALS-derived molecular weights as a function of concentration and experimental conditions. No clear dependence on concentration or ionic strength is observed. The molecular-mass values at pH 5.6 are nevertheless systematically higher than for the measurements at pH 8.0. |