  The relativistic mean-field effective interaction with density-dependent
meson-nucleon couplings DD-ME1 is tested in the calculation of deformed nuclei.
Ground-state properties of six isotopic chains ($60\le Z \le 70$) in the region
of rare-earth nuclei are calculated by using the relativistic
Hartree-Bogoliubov (RHB) model with the DD-ME1 mean-field interaction, and with
the Gogny D1S force for the pairing interaction. Results of fully
self-consistent RHB calculations for the total binding energies, charge isotope
shifts and quadrupole deformation parameters are compared with the available
empirical data.
