| MWexperimental | 152 | kDa | 
| MWexpected | 157 | kDa | 
| VPorod | 254 | nm3 | 
| 
					log I(s)
					
						1.31×10-1
						1.31×10-2
						1.31×10-3
						1.31×10-4
					
				 |  s, nm-1 | 
| 
 
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| Synchrotron SAXS data from solutions of the Nesprin-1-KASH/SUN1 6:6 complex in 20 mM Tris pH 8.0, 150 mM KCl, were collected on the B21 beam line at the Diamond Light Source (Didcot, UK) using a Pilatus 2M detector at a wavelength of λ = 0.095 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). In-line size-exclusion chromatography (SEC) SAS was employed. The SEC parameters were as follows: A 100.00 μl sample at 19 mg/ml was injected at a 0.50 ml/min flow rate onto a GE Superdex 200 Increase 10/300 column at 20°C. 30 successive 3 second frames were collected. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted. Storage temperature = UNKNOWN. Sample detector distance = UNKNOWN | 
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