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Lead Time
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Usage
For Research Use Only. Not for use in diagnostic or therapeutic procedures.
Serine/threonine-protein kinase involved in transcription regulation, apoptosis and steroidogenic gene expression. Phosphorylates JUN and RUNX2. Seems to negatively regulate apoptosis by promoting FADD phosphorylation. Enhances androgen receptor-mediated transcription. May act as a transcriptional corepressor for NK homeodomain transcription factors. The phosphorylation of NR5A1 activates SF1 leading to increased steroidogenic gene expression upon cAMP signaling pathway stimulation. In osteoblasts, supports transcription activation: phosphorylates RUNX2 that synergizes with SPEN/MINT to enhance FGFR2-mediated activation of the osteocalcin FGF-responsive element (OCFRE).
Gene References into Functions
HIPK1, HIPK2 and HIPK3 interact with the components of the carbon catabolite repressor 4 (CCR4)-negative on TATA (NOT) complex, an important regulator of all the major steps in the mRNA metabolism. it has emerged that HIPKs and their related miRNAs are involved in diabetic nephropathy, gastric cancer chemoresistance, cervical cancer progression, and recombinant protein expression in cultured cells. [Review] PMID: 29793420
Overexpression of circHIPK3 promoted NCI-H1299 cell proliferation and knock-down of circHIPK3 inhibited cell proliferation. PMID: 28738961
The two kinases HIPK3 and MAPK11 effect on Huntingtin (HTT)levels are mutant HTT protein (mHTT)-dependent, providing a feedback mechanism in which mHTT enhances its own level thus contributing to mHTT accumulation and disease progression. PMID: 29151587
Over-expression of circHIPK3 effectively inhibits migration, invasion, and angiogenesis of bladder cancer cells in vitro and suppresses bladder cancer growth and metastasis in vivo Mechanistic studies reveal that circHIPK3 contains two critical binding sites for the microRNA miR-558 and can abundantly sponge miR-558 to suppress the expression of heparanase (HPSE). PMID: 28794202
circHIPK3 directly binds to miR-124 and inhibits miR-124 activity and cell cycle progression. PMID: 27050392
Analysis of these mutants revealed that HIPK1, HIPK2 and HIPK3 but not HIPK4 are capable of autophosphorylating on other tyrosines PMID: 25630557
JNK regulates the expression of HIPK3 in prostate cancer cells, which leads to increased resistance to Fas receptor-mediated apoptosis by reducing the interaction between FADD and caspase-8 PMID: 14766760
This finding has linked three common factors, HIPK3, JNK, and c-Jun, to the cAMP signaling pathway leading to increased steroidogenic gene expression PMID: 17210646
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Subcellular Location
Cytoplasm. Nucleus.
Protein Families
Protein kinase superfamily, CMGC Ser/Thr protein kinase family, HIPK subfamily
Tissue Specificity
Overexpressed in multidrug resistant cells. Highly expressed in heart and skeletal muscle, and at lower levels in placenta, pancreas, brain, spleen, prostate, thymus, testis, small intestine, colon and leukocytes. Not found in liver and lung.