Contact and communication: <scp>ZO</scp>‐2 and the Hippo pathway

The PDZ domain-containing protein ZO-2 is defined as a tight junction (TJ) protein, but is also known to have a role in the maintenance of cellular apicobasal polarity and to function as a signalling molecule in several pathways, including the Hippo pathway. In this issue, Liu OX et al. [(2024) FEBS J, https://doi.org/10.1111/febs.17304] report how the multiple protein binding sites of ZO2 protein allow it to act as a scaffold to facilitate its signalling functions.