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. 2019 Feb 1;116(5):847–859. doi: 10.1016/j.bpj.2019.01.031

Table 2.

Parameters of VDAC-Detergent Complexes and Detergent Micelles Determined from Sedimentation Velocity Experiments

dn/dcpa δD (g/g)b v (mL/g)c S20, watera Rs (nm)d MPD (kDa)e,f MP (kDa)e,f MD (kDa)e,f
VDACR monomer 0.48 ± 0.01 1.99 ± 0.04 0.78 ± 0.02 4.8 ± 0.05 4.2 ± 0.3 107 ± 7 36 ± 3 71 ± 5
VDACR + CHS dimer 0.43 ± 0.03 1.7 ± 0.1 0.78 ± 0.07 5.3 ± 0.03 5.9 ± 0.3 170 ± 30 60 ± 10 100 ± 20
VDACR + CHS trimer 0.37 ± 0.02 1.32 ± 0.07 0.77 ± 0.06 6.4 ± 0.07 6.9 ± 0.4 220 ± 20 100 ± 10 120 ± 20
VDACR + CHS tetramer 0.42 ± 0.02 1.15 ± 0.07 0.77 ± 0.06 7.3 ± 0.06 7.7 ± 0.4 290 ± 30 130 ± 20 150 ± 20
DM micelles 2.4 ± 0.02 2.8 ± 0.2 39 ± 3
DM + CHS micelles 3.0 ± 0.1 3.36 ± 0.02 59 ± 2
a

dn/dcp and 4S20, water were determined from AUC c(s) distributions (Fig. S2; Table S1).

b

δD was determined using Eq. 3.

c

v of the protein-detergent complex was calculated from the protein (vP) and detergent (vD) using Eq. 2.

d

Rs was determined by SEC elution volume relative to elution volumes of proteins with known Rs values for VDAC-detergent complexes and by dynamic light scattering for detergent micelles.

e

MPD, Mp, and MD values were calculated using Eqs. 1, 5, and 6, respectively, for VDAC-detergent complexes. MD for pure detergent micelles was calculated using Eq. 1.

f

The mass of VDACR monomer from sequence is 30.3 kDa.