Mucin-4

**Definition:** A transmembrane mucin that is found in a broad variety of epithelial tissue. Mucin-4 may play a role in regulating cellular adhesion and in cell surface signaling from the ERBB-2 RECEPTOR PROTEIN-TYROSINE KINASE. Mucin-4 is a heterodimer of alpha and beta chains. The alpha and beta chains result from the proteolytic cleavage of a precursor protein.

**Tree numbers:** - D09.400.430.900.631.195 - D12.644.360.534 - D12.776.395.560.631.195 - D12.776.476.534