  In the following note, we will present an estimation of the single spin
asymmetry in deeply virtual Compton scattering (DVCS) which directly allows one
to test predictions of the ratio of the imaginary part of the amplitude in DIS
to DVCS, as well as access the skewed parton distributions at small $x$ in the
DGLAP region. We find it to be large for the HERA kinematics to be accessible
in forthcoming runs with polarized electrons.
