New method for incorporating solvent influence into the evaluation of X-ray scattering intensity of proteins in solution.
A new method, the surface integration method, is presented for taking into account the influence of solvent on the intensity of X-ray scattered from proteins in solution. It requires no averaging numerically over the solute orientation. The solvent is modeled by a continuous medium with electrons of uniform density. This method is applied to amino acids, peptides and native proteins to confirm its effectiveness. The solvent influence on the normalized scattering intensity I(K) I(0) is more noticeable for larger solutes and at larger scattering angles, where I(K) is the intensity of scattered X-ray with the magnitude of scattering vector K.
Soda
K
K
Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan.
Miki
Y
Y
Nishizawa
T
T
Seki
Y
Y