  On the basis of the recently proposed self-consistent theory of metal-
insulator transition in strongly disordered systems, taking into account
interaction effects, we study transition temperature $T_{c}$ suppression in
disordered superconductors for the wide disorder interval --- from weakly
disordered metal up to Anderson insulator, induced by "Coulomb pseudogap"
formation in the density of states. It is shown that for a number of systems
this theory provides rather satisfactory fit of experimental data.
