Recombinant Human RYK protein (Fc Chimera)

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The receptor-like tyrosine kinase (RYK) also known as RYK receptor-like tyrosine kinase is a protein involved in Wnt signaling pathways. It has a molecular mass of approximately 74 kDa. RYK functions as a single-pass type I membrane protein and primarily acts as a receptor for Wnt proteins. It is expressed in various tissues including brain testis and pancreas reflecting its diverse roles in developmental and physiological processes.

Biological function summary

RYK modulates cellular communication by interacting with Wnt proteins. It does not possess intrinsic kinase activity but participates in signaling as part of a larger receptor complex on the cell surface. This complex includes other proteins such as Frizzled receptors and LRP co-receptors facilitating the translation of extracellular Wnt signals into intracellular responses. RYK although not a conventional kinase plays a pivotal role in neuronal development influencing axon guidance and synaptic formation.

Pathways

RYK is integral to the Wnt signaling pathway which is essential for cell proliferation differentiation and migration. Through the Wnt pathway RYK interacts with other proteins such as Disheveled (Dvl) to execute its signaling functions. Additionally RYK has associations with the non-canonical Wnt/PCP (planar cell polarity) pathway modulating tissue polarity and cell movement during embryogenesis. Its role within these pathways highlights the intricate regulatory networks involved in developmental biology.

RYK has associations with cancer and neurodevelopmental disorders. Aberrant expression or mutations in RYK can contribute to tumor growth and metastasis implicating it in cancers such as glioma. During neurodevelopment alterations in RYK signaling can lead to disorders like autism spectrum disorder (ASD). RYK interacts with proteins such as β-catenin in pathological states influencing the progression of these conditions. Understanding RYK's involvement in these diseases provides insights that could facilitate therapeutic strategies.