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General description
The central core of each mitogen-activated protein kinase (MAPK) pathway is a conserved cascade of 3 protein kinases: an activated MAPK kinase kinase (MAPKKK) phosphorylates and activates a specific MAPK kinase (MAPKK), which then activates a specific MAPK. While the ERK MAPKs are activated by mitogenic stimulation, the CSBP2 and JNK MAPKs are activated by environmental stresses such as osmotic shock, UV irradiation, wound stress, and inflammatory factors. This gene encodes a MAPKKK, the MEKK4 protein, also called MTK1. This protein contains a protein kinase catalytic domain at the C terminus. The N-terminal nonkinase domain may contain a regulatory domain. Expression of MEKK4 in mammalian cells activated the CSBP2 and JNK MAPK pathways, but not the ERK pathway. In vitro kinase studies indicated that recombinant MEKK4 can specifically phosphorylate and activate PRKMK6 and SERK1, MAPKKs that activate CSBP2 and JNK, respectively but cannot phosphorylate PRKMK1, an MAPKK that activates ERKs. MEKK4 is a major mediator of environmental stresses that activate the CSBP2 MAPK pathway, and a minor mediator of the JNK pathway. Several alternatively spliced transcripts encoding distinct isoforms have been described. [provided by RefSeq, May 2014]
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Immunogen
A synthesized peptide corresponding to a sequence within amino acids 170-200 of human MAP3K4 [NP_001278887.1].
Physical form
Solution in PBS (pH 7.4) containing 50% glycerol, and 0.02% sodium azide.
Other Notes
Gently mix before use. Optimal concentrations and conditions for each application should be determined by the user.
| biological source | rabbit (Monoclonal) |
| Quality Segment | 100 |
| recombinant | expressed in HEK 293 cells |
| conjugate | unconjugated |
| antibody form | affinity isolated antibody |
| antibody product type | primary antibodies |
| clone | 23GB4045, recombinant monoclonal |
| form | buffered aqueous glycerol solution |
| mol wt | 182 kDa |
| species reactivity | rat, human |
| packaging | vial of 1.5 mL |
| enhanced validation | recombinant expression Learn more about Antibody Enhanced Validation |
| sustainability | Greener Alternative Product |
| concentration | 0.6 mg/ml |
| technique(s) | flow cytometry: 1:2000,immunofluorescence: 1:100-:1000,western blot: 1:1,000-1:5,000 |
| isotype | IgG |
| Ensembl | human accession no. | ENSG00000085511 |
| NCBI accession no. | NP_001278887.1 |
| UniProt accession no. | Q9Y6R4 |
| greener alternative category | DfS-Developed |
| shipped in | wet ice |
| storage temp. | −20°C |
| target post-translational modification | unmodified |
| Gene Information | human ... MAP3K4(4216) |
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