The structure of the extracellular domains of human interleukin 11 α-receptor reveals mechanisms of cytokine engagement

Metcalfe R Aizel K, Zlatic C, Nguyen P, Morton C, Lio D, Cheng H, Dobson R, Parker M, Gooley P, Putoczki T, Griffin M, Journal of Biological Chemistry :jbc.RA119.012351 (2020) DOI

SASDGG2 – Interleukin 11 receptor subunit alpha

Interleukin-11 receptor subunit alpha
MWexperimental 34 kDa
MWexpected 32 kDa
VPorod 41 nm3
log I(s) 1.05×10-2 1.05×10-3 1.05×10-4 1.05×10-5
Interleukin-11 receptor subunit alpha small angle scattering data  s, nm-1
ln I(s)
Interleukin-11 receptor subunit alpha Guinier plot ln 1.06×10-2 Rg: 3.0 nm 0 (3.0 nm)-2 s2
(sRg)2I(s)/I(0)
Interleukin-11 receptor subunit alpha Kratky plot 1.104 0 3 sRg
p(r)
Interleukin-11 receptor subunit alpha pair distance distribution function Rg: 3.1 nm 0 Dmax: 9.5 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Interleukin-11 receptor subunit alpha PDB (PROTEIN DATA BANK) model

Synchrotron SAXS data from solutions of the alpha subunit of the interleukin 11 receptor in 20 mM Tris, 150 mM NaCl, 0.2% sodium azide, pH 8.5 were collected on the SAXS/WAXS beam line at the Australian Synchrotron (Melbourne, Australia) using a Dectris/Pilatus3 S 2M detector at a sample-detector distance of 2.5 m and at a wavelength of λ = 0.1078 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 sample at 2.7 mg/ml was injected at a 0.45 ml/min flow rate onto a GE Superdex 200 Increase 5/150 column at 20°C. Six successive 1 second frames were collected through the SEC elution peak of the sample. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.

Storage temperature = UNKNOWN. Sample injection volume = UNKNOWN

Interleukin-11 receptor subunit alpha (IL11RA)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   32.2 kDa
 
UniProt   Q14626 (23-319)
Sequence   FASTA
 
PDB ID   6O4P