Molecular gas mass vs. stellar mass relation for the AGN (empty black circles) and for other CARLA J1103 + 3449 spectroscopically confirmed cluster members (blue filled circles) compared to other cluster (green and cyan) and field galaxies (red) from the literature. The arrows show lower and upper limits. Green markers are the results for cluster galaxies for which gas masses were estimated using the Galactic conversion factor. Cyan markers are estimations with different values of the conversion factor. Dashed and dashed-dotted lines represent the Tacconi et al. (2013) relation for field star-forming galaxies and its 1σ scatter.