E-cadherin, or epithelial cadherin, is an cell-cell adhesion glycoprotein important to cellular processes such as morphology, polarity, development, tissue integrity and migration. E cadherin's extracellular domain interacts with other E-cadherin protein on adjacent epithelial cells to establish adhesion between them. E cadherin has also been identified as a tumor and metastasis suppressor, and its mutations have been linked to various forms of cancer.