JNK/c-Jun

Supporting information

JNKs (c-Jun N-terminal kinases) are a group of mitogen-activated protein kinases (MAPKs), originally called stress activated protein kinases (SAPKs), because they are activated by a variety of environmental stresses. They are also activated in response to cytokines such as TNF-α and IL-1, and growth factors.

There are three isoforms of JNK; JNK1, JNK2 and JNK3. JNK1 and JNK2 are ubiquitously expressed, whilst JNK3 expression is limited to the brain, heart and testis. JNK phosphorylates a wide variety of substrates including c-Jun. c-Jun is a component of the AP-1 transcription factor complex and is involved in the control cell proliferation, transformation, survival and death. JNK also phosphorylates p53 and some non-nuclear proteins. JNK-mediated phosphorylation of target proteins is essential for the induction of gene expression of interleukins, VEGF, COX-2, MMP-9, heme oxygenase-1, ICAM-1, NCX1, GnRHR and others.

JNK is critical in processes as divergent as apoptosis, cell survival, proliferation and differentiation. The JNK pathway appears to be involved in inflammatory and autoimmune disorders including rheumatoid arthritis, irritable bowel disease, and atherosclerosis.

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Gene Species Gene Symbol Gene Accession No. Protein Accession No.
JNK1 Human MAPK8 NM_139047 P45983
Mouse Mapk8 NM_016700 Q91Y86
Rat Mapk8 XM_341399 P49185
JNK2 Human MAPK9 NM_139069 P45984
Mouse Mapk9 NM_016961 Q9WTU6
Rat Mapk9 NM_017322 P49186
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Literature for JNK/c-Jun

Cancer Research Product Guide

A collection of over 750 products for cancer research, the guide includes research tools for the study of:

  • Cancer Metabolism
  • Epigenetics in Cancer
  • Receptor Signaling
  • Cell Cycle and DNA Damage Repair
  • Angiogenesis
  • Invasion and Metastasis
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Cancer Research Product Guide
Immunology Product Listing

A collection of over 190 products for immunology research, the guide includes research tools for the study of:

  • Chemokine and Cytokine Signaling
  • Chemotaxis
  • Complement System
  • Immune Cell Signaling
  • Inflammation
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Immunology Product Listing
Kinases Product Listing

A collection of over 400 products for kinase research, the listing includes inhibitors of:

  • Receptor Tyrosine Kinases
  • Protein Kinases A, C, D and G
  • PI-3 Kinase, Akt and mTOR
  • MAPK Signaling
  • Receptor Serine/Threonine Kinases
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Kinases Product Listing
MAPK Signaling Scientific Review

MAP kinase signaling is integral to the regulation of numerous cellular processes such as proliferation and differentiation, and as a result is an important focus of cancer research. This review discusses the regulation of the MAPK pathway and properties of MAPK cascades. Compounds available from Tocris are listed.

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MAPK Signaling Scientific Review
MAPK Signaling Pathway
MAPK Signaling Pathway

The mitogen-activated protein kinase pathway evokes an intracellular signaling cascade in response to extracellular stimuli such as heat and stress. It can influence cell division, metabolism and survival.

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Cancer Research Product Guide

Cancer Research Product Guide

Our Cancer Research Guide highlights over 750 products for cancer research. Request copy or view PDF today.

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Kinase Inhibitor Toolbox

80 Kinase inhibitors
pre-dissolved in DMSO

Kinase Inhibitor Toolbox

Includes many of the latest kinase inhibitors to become commercially available. Covers a wide range of kinase targets including EGFR, MAPK and CDK.

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Kinases Product Listing

Kinases Product Listing

Our Kinase listing highlights over 400 products for kinase research. Request copy or view PDF today.

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Immunology Guide

Immunology Product Listing

Our Immunology listing highlights over 190 products for immunology research. Request copy or view PDF today.

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MAPK Signaling Review

Written by E. Zaganjor & M. Cobb

MAPK Signaling Scientific Review

Our MAPK signaling review gives an overview of the MAPK signaling cascade and summarizes small molecule inhibitors of the pathway. Request copy or view PDF today.

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MAPK Pathway

MAPK Signaling Pathway

The MAPK family kinases respond to extracellular stimuli such as heat and stress to mediate intracellular signals. View pathway or download PDF today.

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