ZIP Kinase is a serine/threonine kinase, which is involved in the regulation of apoptosis, autophagy, transcription, translation and actin cytoskeleton reorganization. Involved in the regulation of smooth muscle contraction. Regulates both type I (caspase-dependent) apoptotic and type II (caspase-independent) autophagic cell deaths signal, depending on the cellular setting. Involved in regulation of starvation-induced autophagy. Regulates myosin phosphorylation in both smooth muscle and non-muscle cells. In smooth muscle, regulates myosin either directly by phosphorylating MYL12B and MYL9 or through inhibition of smooth muscle myosin phosphatase (SMPP1M) via phosphorylation of PPP1R12A; the inhibition of SMPP1M functions to enhance muscle responsiveness to Ca(2+) and promote a contractile state. Phosphorylates MYL12B in non-muscle cells leading to reorganization of actin cytoskeleton. Isoform 2 can phosphorylate myosin, PPP1R12A and MYL12B. Overexpression leads to condensation of actin stress fibers into thick bundles. Involved in actin filament focal adhesion dynamics. The function in both reorganization of actin cytoskeleton and focal adhesion dissolution is modulated by RhoD. Positively regulates canonical Wnt/beta-catenin signaling through interaction with NLK and TCF7L2. Phosphorylates RPL13A on 'Ser-77' upon interferon-gamma activation which is causing RPL13A release from the ribosome, RPL13A association with the GAIT complex and its subsequent involvement in transcript-selective translation inhibition. Enhances transcription from AR-responsive promoters in a hormone- and kinase-dependent manner. Involved in regulation of cell cycle progression and cell proliferation. May be a tumor suppressor.
Background References
1. Kocher BA et al. DAPK3 suppresses acini morphogenesis and is required for mouse development. Mol Cancer Res 13:358-67 (2015).
2. Marina O et al. Serologic markers of effective tumor immunity against chronic lymphocytic leukemia include nonmutated B-cell antigens. Cancer Res 70:1344-55 (2010).
Western blot analysis of ZIP Kinase on different lysates with Rabbit anti-ZIP Kinase antibody (HA721777) at 1/1,000 dilution.
Lane 1: A431 cell lysate Lane 2: A549 cell lysate Lane 3: 293T cell lysate Lane 4: SiHa cell lysate Lane 5: HepG2 cell lysate Lane 6: Hela cell lysate Lane 7: Jurkat cell lysate Lane 8: Caco-2 cell lysate Lane 9: K-562 cell lysate Lane 10: MCF7 cell lysate Lane 11: U-2 OS cell lysate Lane 12: Human kidney tissue lysate
Lysates/proteins at 40 µg/Lane.
Predicted band size: 53 kDa Observed band size: 50 kDa
Exposure time: 5 minutes;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA721777) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
☑ Knockdown (KD)
Western blot analysis of ZIP Kinase on different lysates with Rabbit anti-ZIP Kinase antibody (HA721777) at 1/2,000 dilution.
Lane 1: HCT 116-si NT cell lysate Lane 2: HCT 116-si ZIP Kinase cell lysate
Lysates/proteins at 10 µg/Lane.
Predicted band size: 53 kDa Observed band size: 53 kDa
Exposure time: 30 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA721777) at 1/2,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
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