  We investigate two exclusive reactions with a Theta+ pentaquark in the final
state: electroproduction of a K meson on the nucleon, and K+ scattering on a
neutron target producing a lepton pair. These reactions offer unique
opportunities to investigate the structure of pentaquark baryons at parton
level. We discuss the generalized parton distributions for the N --> Theta+
transition and give the leading order amplitude for these processes in the
Bjorken regime.
