  Results from a recent analysis of the zero-skewness generalized parton
distributions (GPDs) for valence quarks are discussed. The analysis bases on a
physically motivated parameterization of the GPDs with a few free parameters
adjusted to the available nucleon form factor data. Various moments of the GPDs
as well as their Fourier transfroms, the quark densities in the impact
parameter plane, are also presented. The 1/x moments of the zero-skewness GPDs
are form factors specific to Compton scattering off protons within the handbag
approach. The results of the GPD analysis enables one to predict Compton
scattering.
