Breaking new ground into RAD51–BRC repeats interplay in Homologous Recombination

Rinaldi F, Franco P, Veronesi M, Romeo E, Bresciani V, Varignani G, Catalano F, Bernetti M, Masetti M, Langer J, Girotto S, Cavalli A, (2025) DOI

SASDW86 – RAD51 [F86E, A89E] in complex with second BRC repeat (BRC2) at 2 mg/mL

DNA repair protein RAD51 homolog 1 (F86E A89E)
Breast cancer type 2 susceptibility protein (BRC repeat 2)
MWexperimental 43 kDa
MWexpected 41 kDa
VPorod 69 nm3
log I(s) 5.05×10-2 5.05×10-3 5.05×10-4 5.05×10-5
DNA repair protein RAD51 homolog 1 (F86E A89E) Breast cancer type 2 susceptibility protein (BRC repeat 2) small angle scattering data  s, nm-1
ln I(s)
DNA repair protein RAD51 homolog 1 (F86E A89E) Breast cancer type 2 susceptibility protein (BRC repeat 2) Guinier plot ln 5.05×10-2 Rg: 2.7 nm 0 (2.7 nm)-2 s2
(sRg)2I(s)/I(0)
DNA repair protein RAD51 homolog 1 (F86E A89E) Breast cancer type 2 susceptibility protein (BRC repeat 2) Kratky plot 1.104 0 3 sRg
p(r)
DNA repair protein RAD51 homolog 1 (F86E A89E) Breast cancer type 2 susceptibility protein (BRC repeat 2) pair distance distribution function Rg: 2.8 nm 0 Dmax: 9.8 nm

Data validation


There are no models related to this curve.

Synchrotron SAXS data from solutions of RAD51 [F86E, A89E] in complex with second BRC repeat (BRC2) at 2 mg/mL in 20 mM K₂HPO₄/KH₂PO₄, 100 mM NaCl, 200 mM Li₂SO₄, 5% glycerol, 1 mM DTT, pH 8 were collected on the B21 beam line at the Diamond Light Source storage ring (Didcot, UK) using a Eiger 4M detector at a sample-detector distance of 3.7 m and at a wavelength of λ = 0.09464 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). One solute concentration of 2.00 mg/ml was measured at 15°C. 21 successive 1 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.

Molecular weight has been inferred through Volume of Correlation (Vc). Sample molecular weight and monodispersity has been independently confirmed through static light scattering (SLS).

DNA repair protein RAD51 homolog 1 (F86E A89E) (RAD51 F86E A89E)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   37.1 kDa
 
UniProt   Q06609 (1-339)
Sequence   FASTA
 
Breast cancer type 2 susceptibility protein (BRC repeat 2) (BRC2)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   4.4 kDa
 
UniProt   P51587 (1212-1246)
Sequence   FASTA