Small-angle X-ray and neutron scattering demonstrates that cell-free expression produces properly formed disc-shaped nanolipoprotein particles.

Cleveland TE 4th, He W, Evans AC, Fischer NO, Lau EY, Coleman MA, Butler P, Protein Sci 27(3):780-789 (2018) PubMed

SASDC99 – Nanolipoprotein Particle (NLP) from In Vitro Assembly - 100% D2O SANS

Apolipoprotein A-I
MWexperimental 142 kDa
MWexpected 142 kDa
log I(s) 2.60×100 2.60×10-1 2.60×10-2 2.60×10-3
Apolipoprotein A-I 1,2-dimyristoyl-sn-glycero-3-phosphocholine small angle scattering data  s, nm-1
ln I(s)
Apolipoprotein A-I 1,2-dimyristoyl-sn-glycero-3-phosphocholine Guinier plot ln 2.60×100 Rg: 3.1 nm 0 (3.1 nm)-2 s2
Apolipoprotein A-I 1,2-dimyristoyl-sn-glycero-3-phosphocholine Kratky plot 1.104 0 3 sRg
Apolipoprotein A-I 1,2-dimyristoyl-sn-glycero-3-phosphocholine pair distance distribution function Rg: 3.1 nm 0 Dmax: 9.1 nm

Experimental data validation

There are no models related to this curve.

Small-angle neutron scattering (SANS) data from solutions of Nanolipoprotein Particle (NLP) from In Vitro Assembly in PBS constituted in 100% D2O, pD 7.4, were collected on the NG7 SANS instrument at the NIST Center for Neutron Research (Gaithersburg, MD, USA) using a 640x640 mm 3He position sensitive Ordela 2660N detector at wavelength of λ = 0.6 nm (I(s) vs s, where s = 4πsinθ/λ and 2θ is the scattering angle). One solute concentration of 5.21 mg/ml was measured at 20°C. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.

Additional SANS measurement parameters. Three detector positions (in m) and count times (s) were employed: 1 m (two frames of 300 + 900 = 1200 s total count time); 4 m (two frames of 1800 + 1800 = 3600 s total count time); 13 m (two frames of 300 + 600 = 900 s total count time).

Apolipoprotein A-I (ApoA-I)
Mol. type   Protein
Organism   Mus musculus
Olig. state   Dimer
Mon. MW   25.2 kDa
UniProt   Q00623 (67-264)
Sequence   FASTA
1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC)
Mol. type   Other
Olig. state   Other
Mon. MW   0.7 kDa
Sequence   FASTA