SFR (left), molecular gas-to-stellar mass ratio (center), and depletion time (right), as a function of the stellar mass for distant BCGs and cluster galaxies observed in CO. The y-axis values are all normalized to the corresponding MS values using the relations by Speagle et al. (2014) and Tacconi et al. (2018). The horizontal dashed lines correspond to y-axis values equal to unity, while the dotted lines denote the fiducial uncertainties associated with the MS. The uncertainty is chosen to be equal to ±0.48 dex for both the left and right panels since the MS is commonly identified by 1/3 < SFR/SFR_MS < 3. For the central panel, the plotted uncertainties are estimated at redshift z = 0.5. The color-coding for the data points is the same as in Fig. 4.