形式 |
The hematopoietic progenitor kinase 1 (HPK1) is a mammalian hematopoiesis-specific Ste20 homologue belonging to the germinal center (GC) kinase family, which contains at least 20 kinases (1). HPK1 is implicated in a variety of signaling systems, including epidermal growth factor, transforming growth factor-beta, erythropoietin, prostaglandin E 2, and T cell receptor and B cell receptor stimulation. HPK1 is also involved in Fas ligation-mediated apoptosis, NF-B activation and a highly specific activator of the JNK/SAP signaling pathway (2-5). Phosphorylation of HPK1 on threonine 165, serine 171 and tyrosine 379 is a prerequisite for its enzymatic activation in response to immunoreceptor stimulation (6).
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復(fù)溶 |
1. Dan, I., N. M. Watanabe, and A. Kusumi. 2001. Trends Cell Biol. 11:220-230<br>2. Anafi, M., Kiefer, F., Gish, G. D., Mbamalu, G., Iscove, N. N., and Pawson, T. (1997) J. Biol. Chem. 272, 27804-27811<br>3. Wang, W., Zhou, G., Hu, M. C.-T., Yao, Z., and Tan, T.-H. (1997) J. Biol. Chem. 272, 22771-22775<br>4. Liu, S. K., Smith, C. A., Arnold, R., Kiefer, F., and McGlade, C. J. (2000) J. Immunol. 165, 1417-1426<br>5. Chen, Y.-R., Meyer, C. F., Ahmed, B., Yao, Z., and Tan, T.-H. (1999) Oncogene 18, 7370-7377<br>6. Tsuji et al. 2001. J. Exp. Med. 194:529-539<br>
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產(chǎn)品描述 |
Function
Serine/threonine-protein kinase, which may play a role in the response to environmental stress. Appears to act upstream of the JUN N-terminal pathway. May play a role in hematopoietic lineage decisions and growth regulation. Able to autophosphorylate.
Tissue_Location
Expressed primarily in hematopoietic organs, including bone marrow, spleen and thymus. Also expressed at very low levels in lung, kidney, mammary glands and small intestine
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