An intrinsically disordered region mediates RNA-binding selectivity and cellular activities of LARP6.

Capraro F, Abis G Incocciati A, Simpson PJ, Karimzadeh M, Masino L, Barley A, Bui TTT, Kelly G, Goodarzi H, Conte MR, Mardakheh FK, Nat Commun (2026) Europe PMC

SASDYW5 – La-related protein 6 (LARP6) La-module apo

La-related protein 6
MWexperimental 36 kDa
MWexpected 27 kDa
VPorod 59 nm3
log I(s) 1.38×10-2 1.38×10-3 1.38×10-4 1.38×10-5
La-related protein 6 small angle scattering data  s, nm-1
ln I(s)
La-related protein 6 Guinier plot ln 1.38×10-2 Rg: 2.9 nm 0 (2.9 nm)-2 s2
(sRg)2I(s)/I(0)
La-related protein 6 Kratky plot 1.104 0 3 sRg
p(r)
La-related protein 6 pair distance distribution function Rg: 2.8 nm 0 Dmax: 8.3 nm

Data validation


There are no models related to this curve.

Synchrotron SAXS data from solutions of La-related protein 6 (LARP6) La-module apo in 25 mM Tris-HCl, 100 mM KCl, 5 mM MgCl2, 1 mM DTT, pH 7.5 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 = 0.09537 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). Solute concentrations ranging between 4 and 5 mg/ml were measured at 15°C. 600 successive 0.350 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. The low angle data collected at lower concentration were merged with the highest concentration high angle data to yield the final composite scattering curve.

LARP6 La-module, residues 70-300, including the two structured La-motif and RNA-recognition motif 1. Experimental molecular weight was estimated by SEC-MALLS.

La-related protein 6 (LARP6)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   26.9 kDa
 
UniProt   Q9BRS8 (70-300)
Sequence   FASTA