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