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Molecular masses of laminin complexes determined by analytical ultracentrifugation.
| Protein fragment | Sedimentation coefficient s20w | AUC | Calculated molar mass (kDa) |
|---|---|---|---|
| β1γ1 | 2.4 | 59 | 53 (1:1) |
| β1γ2 | 3.3 | 92 | 52.4 (1:1) |
| α3β1γ1 | 3.1 | 77 | 77 (1:1:1) |
| α3β1γ2 | 2.9 | 77 | 77 (1:1:1) |
The recombinant proteins were analysed in 5 mM sodium phosphate buffer (pH 7.4) containing 150 mM NaCl. Calculated molecular masses of the examined heterodimers (β1γ1 and β1γ2) and hetetrotrimers (α3β1γ1 and α3β1γ2) are indicated.
