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