Table 2.
dn/dcpa | δD (g/g)b | (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 |
δD was determined using Eq. 3.
of the protein-detergent complex was calculated from the protein () and detergent () using Eq. 2.
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.
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.
The mass of VDACR monomer from sequence is 30.3 kDa.