T-cadherin
GPI-anchored signaling protein / From Wikipedia, the free encyclopedia
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T-cadherin, also known as cadherin 13, H-cadherin (heart), and CDH13, is a unique member of the cadherin superfamily of proteins because it lacks the transmembrane and cytoplasmic domains common to all other cadherins and is instead anchored to the cell's plasma membrane by the GPI anchor.
This article may be too technical for most readers to understand. (July 2017) |
Unlike classical cadherins, which are necessary for cell–cell adhesion, dynamic regulation of morphogenetic processes in embryos, and tissue integrity in adult organisms, and function as membrane receptors mediating signals received from the extracellular space, activate small GTPases and the beta-catenin/Wnt pathway, and play important roles in dynamic cytoskeleton reorganization, the GPI-anchored T-cadherin lacks direct contact with the cytoskeleton and therefore is not involved in cell–cell adhesion. It is instead involved in low-density lipoprotein (LDL) hormone-like effects on Ca2+ mobilization and increased cell migration as well as phenotypic changes. The exact signaling partners and adaptor proteins recognized by T-cadherin remain to be elucidated.