How the central domain of dystrophin acts to bridge F-actin to sarcolemmal lipids.

Mias-Lucquin D, Dos Santos Morais R Chéron A, Lagarrigue M, Winder SJ, Chenuel T, Pérez J, Appavou MS, Martel A, Alviset G, Le Rumeur E, Combet S, Hubert JF, Delalande O, J Struct Biol :107411 (2019) Europe PMC

SASDFU4 – Conformation of R11-15 human dystrophin fragment in interaction with zwitterionic phospholipid bicelles (SANS)

Dystrophin (R11-15 human dystrophin fragment)
MWI(0) 52 kDa
MWexpected 60 kDa
VPorod 144 nm3
log I(s) 2.72×10-1 2.72×10-2 2.72×10-3 2.72×10-4
Dystrophin (R11-15 human dystrophin fragment) small angle scattering data  s, nm-1
ln I(s)
Dystrophin (R11-15 human dystrophin fragment) Guinier plot ln 2.72×10-1 Rg: 6.2 nm 0 (6.2 nm)-2 s2
(sRg)2I(s)/I(0)
Dystrophin (R11-15 human dystrophin fragment) Kratky plot 1.104 0 3 sRg
p(r)
Dystrophin (R11-15 human dystrophin fragment) pair distance distribution function Rg: 6.4 nm 0 Dmax: 28.1 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Dystrophin (R11-15 human dystrophin fragment) DAMMIF model

SANS data from solutions of the R11-15 human dystrophin fragment with zwitterionic phospholipid bicelles in 20 mM Tris-d11, 150 mM NaCl, 0.1 mM EDTA-d16, in 100% v/v D2O, pH 7.1 were collected on the D22 beam line at the ILL (Grenoble, France) using a 3He multidetector 128 linear sensitive Reuter-Stokes detector at a wavelength of λ = 0.6 nm (l(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). One solute concentration of 5.60 mg/ml was measured at 22°C. One 1200 second frame was collected. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.

Data were collected at two sample detector positions: 1) 1.4 m for 5 min using a neutron wavelength of 0.6 nm and; 2) 8 m for 20 min using a neutron wavelength of 0.6 nm. Both datasets were recorded on the same sample at 5.6 mg/mL, measured at 22 °C.

Tags: sans
Dystrophin (R11-15 human dystrophin fragment) (Dystrophin 1461-1973)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   60.1 kDa
 
UniProt   P11532 (1461-1973)
Sequence   FASTA