Single-engineered-residue solvation perturbations regulate global protein architecture and function.

Liu Y Zhai J, Cao S, Guo H, Zhang H, Song B, Guo J, Men D, He X, Li D, Nat Commun (2026) Europe PMC

SASDY97 – Alkaline phosphatase (ALP) under vis

Wild Alkaline Phosphatase under vis
MWexperimental 97 kDa
MWexpected 97 kDa
VPorod 75 nm3
log I(s) 2.61×101 2.61×100 2.61×10-1 2.61×10-2
Wild Alkaline Phosphatase under vis small angle scattering data  s, nm-1
ln I(s)
Wild Alkaline Phosphatase under vis Guinier plot ln 2.62×101 Rg: 2.8 nm 0 (2.8 nm)-2 s2
(sRg)2I(s)/I(0)
Wild Alkaline Phosphatase under vis Kratky plot 1.104 0 3 sRg
p(r)
Wild Alkaline Phosphatase under vis pair distance distribution function Rg: 2.8 nm 0 Dmax: 9 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Wild Alkaline Phosphatase under vis PYMOL model

Synchrotron SAXS data from solutions of Alkaline phosphatase (ALP) under vis in 25 mM Tris, 100 mM NaCl, 2 mM TCEP, 3% (w/v) glycerol, pH 7.5 were collected on the BL19U2 beam line at the Shanghai Synchrotron Radiation Facility (SSRF) storage ring (Shanghai, China) using a Pilatus 1M detector at a sample-detector distance of 2.6 m and at a wavelength of λ = 0.1033 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). One solute concentration of 1.00 mg/ml was measured at 20°C. 20 successive 0.200 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.

Wild Alkaline Phosphatase under vis (ALP-vis)
Mol. type   Protein
Organism   Escherichia coli
Olig. state   Dimer
Mon. MW   48.7 kDa
 
UniProt   P00634
Sequence   FASTA