Pyk2 colocalizes and interacts with tau in neurons. The in vivo evidence of a role of Pyk2 in tau pathology led us to investigate the association of Pyk2 and tau in more detail, including under physiological conditions.

Protein tyrosine kinase 2 beta is an enzyme that in humans is encoded by the PTK2B gene. [5][6] This gene encodes a cytoplasmic protein tyrosine kinase that is involved in calcium-induced regulation of ion channels and activation of the MAP kinase signaling pathway.

Pyk2 is a non-receptor tyrosine kinase highly enriched in forebrain neurons. Pyk2 is closely related to focal adhesion kinase (FAK), which plays an important role in sensing cell contacts with extracellular matrix and other extracellular signals controlling adhesion and survival.

2018年11月14日 · Pyk2 serves as a non-receptor tyrosine kinase regulating tumor cell survival, proliferation, migration, invasion, metastasis, and chemo-resistance, and is associated with poor prognosis and shortened survival in various cancer types.

2022年8月9日 · Here, we investigated the mechanism by which the protein tyrosine kinase 2-beta (PYK2) functions as a sensor and effector of cellular calcium influx. We show that the linker between the...

2024年4月1日 · PYK2 functions as a signaling hub in various cascades, and its involvement in positive and negative feedback loops enhances signaling robustness, modulates signaling dynamics, and contributes to BC growth, epithelial-to-mesenchymal transition (EMT), stemness, migration, invasion, and metastasis.

The protein tyrosine kinase Pyk2 is encoded by PTK2B, a novel Alzheimer's disease (AD) susceptibility variant, with the PTK2B risk allele being associated with increased mRNA levels, suggestive of increased Pyk2 levels.