  We show that HERA data for the inclusive structure function F_2(x,Q^2) at
small Bjorken-x and Q^2 can be reasonably well described by a color-dipole
model with an AdS/CFT-inspired dipole-proton cross section. The model contains
only three free parameters fitted to data. In our AdS/CFT-based
parameterization the saturation scale varies in the range of 1-3 GeV becoming
independent of energy/Bjorken-x at very small x. This leads to the prediction
of x-independence of the F_2 and F_L structure functions at very small x. We
provide predictions for F_2 and F_L in the kinematic regions of future
experiments. We discuss the limitations of our approach and its applicability
region, and argue that our AdS/CFT-based model of non-perturbative physics
could be viewed as complimentary to the perturbative description of data based
on saturation/Color Glass Condensate physics.
