  We reconsider an universal mass matrix model which has a seesaw-invariant
structure with four-zero texture common to all quarks and leptons. The CKM
quark and MNS lepton mixing matrices of the model are analyzed analytically.We
show that the model can be consistent with all the experimental data of
neutrino oscillation and quark mixings by tuning free parameters of the model.
It is also shown that the model predicts a relatively large value for (1,3)
element of the MNS lepton mixing matrix, |(U_{MNS})_{13}|^2 \simeq 2.6 \times
10^{-2}. Using the seesaw mechanism, we also discuss the conditions for the
components of the Dirac and the right-handed Majorana neutrino mass matrices
which lead to the neutrino mass matrix consistent with the experimental data.
