A Simple Protocol for Visualization of RNA-Protein Complexes by Atomic Force Microscopy.

Tripepi A, Shakoor H, Klapetek P, Curr Protoc 5(1):e70084 (2025) Europe PMC

SASDUS5 – Human Double-stranded RNA-binding protein Staufen homolog 1

Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81)
MWexperimental 69 kDa
MWexpected 110 kDa
VPorod 86 nm3
log I(s) 4.87×102 4.87×101 4.87×100 4.87×10-1
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) small angle scattering data  s, nm-1
ln I(s)
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) Guinier plot ln 4.88×102 Rg: 5 nm 0 (5 nm)-2 s2
(sRg)2I(s)/I(0)
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) Kratky plot 1.104 0 3 sRg
p(r)
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) pair distance distribution function Rg: 4.7 nm 0 Dmax: 14.1 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Human Double-stranded RNA-binding protein Staufen homolog 1 Rg histogram Rg, nm
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) EOM/RANCH model
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) EOM/RANCH model
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) EOM/RANCH model
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) EOM/RANCH model
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) EOM/NNLSJOE model
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) EOM/RANCH model
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) EOM/NNLSJOE model
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) EOM/RANCH model
Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) EOM/RANCH model

Synchrotron SAXS data from solutions of double-stranded RNA-binding protein staufen homolog 1 in 50 mM TRIS, 300 mM NaCl, 3.8 mM β-mercaptoethanol, pH 7 were collected on the EMBL P12 beam line at PETRA III (DESY; Hamburg, Germany) using a Pilatus 6M detector at a sample-detector distance of 3 m and at a wavelength of λ = 0.124 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 5.9 mg/ml was injected at a 0.60 ml/min flow rate onto a GE Superdex 200 Increase 10/300 column at 20°C. One 1 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.

Double-stranded RNA-binding protein Staufen homolog 1 (Δ1-81) (Stau1)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Dimer
Mon. MW   55.2 kDa
 
UniProt   O95793 (82-577)
Sequence   FASTA