Anti-ZIP Kinase Antibody

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. {PubMed:10356987, PubMed:11384979, PubMed:11781833, PubMed:12917339, PubMed:15096528, PubMed:15367680, PubMed:16219639, PubMed:17126281, PubMed:17158456, PubMed:18084323, PubMed:18995835, PubMed:21169990, PubMed:21408167, PubMed:21454679, PubMed:21487036, PubMed:23454120}.

Immunoblotting: use at 1ug/mL. <br><br>Positive control: HeLa cell lysate. <br><br>Immunocytochemistry: use at 10ug/mL. <br><br>These are recommended concentrations. <br><br>Enduser should determine optimal concentrations for their applications.

A novel serine/threonine kinase that mediates apoptosis has been identified and designated ZIP kinase. ZIP kinase contains an N-terminal kinase domain and a C- terminal leucine zipper structure and binds to ATF4, a member of ATF/CREB family. ZIP kinase has high sequence homology to DAP kinase (death-associated protein kinase), a mediator of apoptosis induced by gamma interferon. Overexpression of ZIP kinase induces apoptosis. ZIP and DAP kinases represent a novel kinase family which mediates apoptosis through their catalytic activities. Messenger RNA for ZIP kinase is widely expressed in a variety of human tissues.