Lymphokine-activated killer T-cell-originated protein kinase is an enzyme that in humans is encoded by the PBKgene.[1][2][3]
The protein encoded by this gene is a serine/threonine kinase related to the dual specific mitogen-activated protein kinase kinase (MAPKK) family. Evidence suggests that mitotic phosphorylation is required for its catalytic activity. This mitotic kinase may be involved in the activation of lymphoid cells and support testicular functions, with a suggested role in the process of spermatogenesis.[3]
References
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Zhao S, Dai J, Zhao W, et al. (2001). "PDZ-binding kinase participates in spermatogenesis". Int. J. Biochem. Cell Biol. 33 (6): 631–6. doi:10.1016/S1357-2725(01)00005-X. PMID11378444.
Simons-Evelyn M, Bailey-Dell K, Toretsky JA, et al. (2003). "PBK/TOPK is a novel mitotic kinase which is upregulated in Burkitt's lymphoma and other highly proliferative malignant cells". Blood Cells Mol. Dis. 27 (5): 825–9. doi:10.1006/bcmd.2001.0452. PMID11783945.
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Matsumoto S, Abe Y, Fujibuchi T, et al. (2005). "Characterization of a MAPKK-like protein kinase TOPK". Biochem. Biophys. Res. Commun. 325 (3): 997–1004. doi:10.1016/j.bbrc.2004.10.133. PMID15541388.
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Stelzl U, Worm U, Lalowski M, et al. (2005). "A human protein-protein interaction network: a resource for annotating the proteome". Cell. 122 (6): 957–68. doi:10.1016/j.cell.2005.08.029. PMID16169070.
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Dougherty JD, Garcia AD, Nakano I, et al. (2006). "PBK/TOPK, a proliferating neural progenitor-specific mitogen-activated protein kinase kinase". J. Neurosci. 25 (46): 10773–85. doi:10.1523/JNEUROSCI.3207-05.2005. PMID16291951.
Olsen JV, Blagoev B, Gnad F, et al. (2006). "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks". Cell. 127 (3): 635–48. doi:10.1016/j.cell.2006.09.026. PMID17081983.
Nandi AK, Ford T, Fleksher D, et al. (2007). "Attenuation of DNA damage checkpoint by PBK, a novel mitotic kinase, involves protein-protein interaction with tumor suppressor p53". Biochem. Biophys. Res. Commun. 358 (1): 181–8. doi:10.1016/j.bbrc.2007.04.125. PMID17482142.
Oh SM, Zhu F, Cho YY, et al. (2007). "T-lymphokine-activated killer cell-originated protein kinase functions as a positive regulator of c-Jun-NH2-kinase 1 signaling and H-Ras-induced cell transformation". Cancer Res. 67 (11): 5186–94. doi:10.1158/0008-5472.CAN-06-4506. PMID17545598.
Zhu F, Zykova TA, Kang BS, et al. (2007). "Bidirectional signals transduced by TOPK-ERK interaction increase tumorigenesis of HCT116 colorectal cancer cells". Gastroenterology. 133 (1): 219–31. doi:10.1053/j.gastro.2007.04.048. PMID17631144.