RCSB PDB Protein Data Bank A Member of the wwPDB
An Information Portal to Biological Macromolecular Structures
PDB Home |

Item _refine.solvent_model_param_ksol


Description

              The value of the KSOL solvent-model parameter describing
               the ratio of the electron density in the bulk solvent to the
               electron density in the molecular solute.

               This is one of the two parameters (the other is
               _refine.solvent_model_param_bsol) in Tronrud's method of
               modelling the contribution of bulk solvent to the
               scattering. The standard scale factor is modified according
               to the expression

                   k0 exp(-B0 * s^2^)[1-KSOL * exp(-BSOL * s^2^)]

               where k0 and B0 are the scale factors for the protein.

               Ref: Tronrud, D. E. (1997). Methods Enzymol. 277, 243-268.

Category

refine

Mandatory Code

no

Data Type Code

float

 

© RCSB PDB