The protein encoded by this gene is a member of serine/threonine protein kinase family. This kinase contains a dual leucine-zipper motif, and has been shown to form dimers/oligomers through its leucine-zipper motif. This kinase can phosphorylate and activate MAPK8/JNK, MAP2K7/MKK7, which suggests a role in the JNK signaling pathway.
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Ikeda A, Sakuma H, Masaki M, Kozutsumi Y, Oka S, Inazawa J, Kawasaki T (2002). "Genomic organization and fine-mapping of the human leucine zipper-bearing kinase (LZK) gene". J. Biochem. Mol. Biol. Biophys. 6 (2): 113–7. doi:10.1080/10258140290027243. PMID12186766.
Ikeda A, Hasegawa K, Masaki M, Moriguchi T, Nishida E, Kozutsumi Y, Oka S, Kawasaki T (2002). "Mixed lineage kinase LZK forms a functional signaling complex with JIP-1, a scaffold protein of the c-Jun NH(2)-terminal kinase pathway". J. Biochem. 130 (6): 773–81. doi:10.1093/oxfordjournals.jbchem.a003048. PMID11726277.
Ikeda A, Masaki M, Kozutsumi Y, Oka S, Kawasaki T (2001). "Identification and characterization of functional domains in a mixed lineage kinase LZK". FEBS Lett. 488 (3): 190–5. doi:10.1016/S0014-5793(00)02432-7. PMID11163770.
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