PTK7, NT (Tyrosine-Protein Kinase-Like 7, Colon Carcinoma Kinase 4, CCK-4, Protein-Tyrosine Kinase 7, CCK4) (AP)

Protein tyrosine kinase-like 7 (PTK7) is a member of the receptor tyrosine kinase family, otherwise known as Colon Carcinoma Kinase 4 (CCK4). PTK7 is highly expressed in the kidney, liver, lung, pancreas and melanocytes with weaker expression being detected in the thyroid gland, ovaries, brain, heart and skeletal muscle. PTK7 may play a role in embryonic development. It is thought to function as a cell adhesion molecule and as a novel regulator of the planar cell polarity (PCP) pathway in vertebrates. Studies also suggest that PTK7 may be involved in the tumor progression. A loss of PTK7 expression...