PITX2 and gastric cancer: For investigating the binding partners critical for PITX2 function in gastric cancer, we conducted a comprehensive analysis of publicly available databases, including HuRI (http://www.interactome‐atlas.org/), InBioMap (https://inbio‐discover.com/), BioGRID (https:// thebiogrid.org/), and IID (http://iid.ophid.utoronto.ca/).