Small angle X-ray scattering as a complementary tool for high-throughput structural studies.

Grant TD, Luft JR, Wolfley JR, Tsuruta H, Martel A, Montelione GT, Snell EH, Biopolymers 95(8):517-30 (2011) Europe PMC

SASDCE6 – PAS domain of the protein CPS_1291 from Colwellia psychrerythraea. Northeast Structural Genomics Consortium target id CsR222B

Sensory box/GGDEF domain protein
MWexperimental 31 kDa
MWexpected 30 kDa
VPorod 52 nm3
log I(s) 2.15×103 2.15×102 2.15×101 2.15×100
Sensory box/GGDEF domain protein small angle scattering data  s, nm-1
ln I(s)
Sensory box/GGDEF domain protein Guinier plot ln 2.16×103 Rg: 2.2 nm 0 (2.2 nm)-2 s2
(sRg)2I(s)/I(0)
Sensory box/GGDEF domain protein Kratky plot 1.104 0 √3 sRg
p(r)
Sensory box/GGDEF domain protein pair distance distribution function Rg: 2.3 nm 0 Dmax: 7.7 nm

Data validation

Fits and models

log I(s)
 s, nm-1
Sensory box/GGDEF domain protein PDB (PROTEIN DATA BANK) model
log I(s)
 s, nm-1
Sensory box/GGDEF domain protein DAMFILT model
Synchrotron SAXS data from solutions of PAS domain of the protein CPS_1291 from Colwellia psychrerythraea. Northeast Structural Genomics Consortium target id CsR222B in 5 mM DTT 100 mM NaCl 10 mM Tris-HCl 0.02 % NaN3, pH 7.5 were collected on the BL4-2 beam line at the Stanford Synchrotron Radiation Lightsource (SSRL) storage ring (Menlo Park, CA, USA) using a Rayonix MX225-HE detector at a sample-detector distance of 1.5 m and at a wavelength of λ = 0.13 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). Solute concentrations ranging between 1.9 and 6.9 mg/ml were measured at 20°C. 20 successive 1 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.

Sensory box/GGDEF domain protein
Mol. type   Protein
Organism   Colwellia psychrerythraea
Olig. state   Dimer
Mon. MW   15.1 kDa
 
UniProt   Q486I1
Sequence   FASTA
 
PDB ID   3LYX