Context : The star HD 49385 is the first G-type solar-like pulsator observed in the seismology field of the space telescope CoRoT . The satellite collected 137 days of high-precision photometric data on this star , confirming that it presents solar-like oscillations . HD 49385 was also observed in spectroscopy with the NARVAL spectrograph in January 2009 . Aims : Our goal is to characterize HD 49385 using both spectroscopic and seismic data . Methods : The fundamental stellar parameters of HD 49385 are derived with the semi-automatic software VWA , and the projected rotational velocity is estimated by fitting synthetic profiles to isolated lines in the observed spectrum . A maximum likelihood estimation is used to determine the parameters of the observed p modes . We perform a global fit , in which modes are fitted simultaneously over nine radial orders , with degrees ranging from \ell = 0 to \ell = 3 ( 36 individual modes ) . Results : Precise estimates of the atmospheric parameters ( T _ { eff } , [ M/H ] , \log g ) and of the v \sin i of HD 49385 are obtained . The seismic analysis of the star leads to a clear identification of the modes for degrees \ell = 0 , 1 , 2 . Around the maximum of the signal ( \nu \simeq 1013 \mu Hz ) , some peaks are found significant and compatible with the expected characteristics of \ell = 3 modes . Our fit yields robust estimates of the frequencies , linewidths and amplitudes of the modes . We find amplitudes of \sim 5.6 \pm 0.8 ppm for radial modes at the maximum of the signal . The lifetimes of the modes range from one day ( at high frequency ) to a bit more than two days ( at low frequency ) . Significant peaks are found outside the identified ridges and are fitted . They are attributed to mixed modes . Conclusions :