Left: zoom-in on the CO(2–1) line emission, continuum-subtracted mosaic map of the extended source in the cluster center. The black cross marks the center of our observations. The beam size (4.14 × 3.45 arcsec²) is plotted at the lower left. The color scale of the intensity map is in Jy beam⁻¹. The rms noise level is σ ~ 0.2 mJy beam⁻¹ in the central pointing intersection region. The contours correspond to the 1σ, 2σ, and 3σ levels. Right: CO(2–1) line emission integrated spectrum. The two Gaussian fits correspond to system velocities of V_sys =−623.0 km s⁻¹ (blue) and V_sys = −115.5 km s⁻¹ (red). The AGN spectroscopic redshift corresponds to a velocity of v = 331.6 km s⁻¹ (vertical green line).