Human/Mouse/Rat MEKK2 Antibody

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Detection of Human, Mouse, and Rat MEKK2 by Western Blot.
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Human/Mouse/Rat MEKK2 Antibody Summary

Species Reactivity
Human, Mouse, Rat
Detects recombinant human MEKK2 in direct ELISA and human, mouse, rat MEKK2 in Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human MEKK1, 3, or 4 is observed.
Monoclonal Mouse IgG2A Clone # 722728
Protein A or G purified from hybridoma culture supernatant
E. coli-derived recombinant human MEKK2
Accession # Q9Y2U5
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
2 µg/mL
See below
8-25 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Human, Mouse, and Rat MEKK2 antibody by Western Blot. View Larger

Detection of Human, Mouse, and Rat MEKK2 by Western Blot. Western blot shows lysates of Ramos human Burkitt's lymphoma cell line, Saos-2 human osteosarcoma cell line, BJAB human Burkitt's lymphoma cell line, NIH-3T3 mouse embryonic fibroblast cell line, and Rat-2 rat embryonic fibroblast cell line. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human/Mouse/Rat MEKK2 Monoclonal Antibody (Catalog # MAB7128) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for MEKK2 at approximately 72 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Immunocytochemistry MEKK2 antibody in 293T Human Cell Line by Immunocytochemistry (ICC). View Larger

MEKK2 in 293T Human Cell Line. MEKK2 was detected in immersion fixed 293T human embryonic kidney cell line using Mouse Anti-Human/Mouse/Rat MEKK2 Monoclonal Antibody (Catalog # MAB7128) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to nuclei and cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips. This application has not been tested in mouse or rat samples.

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Preparation and Storage

Sterile PBS to a final concentration of 0.5 mg/mL.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: MEKK2

MAPK/ERK kinase kinase 2 (MEKK2) is a widely expressed 70 kDa member of the MEKK/STE11 subfamily of Ser/Thr kinases. It contains a PB1 domain (aa 43-122) which mediates dimerization with MEK5, a region with several phosphorylation sites, and a protein kinase domain (aa 357-617) that includes a site for activating phosphorylation at Thr524. Within aa 42-264, human MEKK2 shares 93% aa sequence identity with mouse and rat MEKK2. Activated MEKK2 translocates from the cytosol to the nucleus, where it forms a complex that binds and activates MKK7 in the c-Jun N-terminal kinase (JNK) pathway, relaying mitogenic and stress signals.

Long Name
Mitogen-activated Protein Kinase Kinase Kinase 2
Entrez Gene IDs
10746 (Human); 26405 (Mouse); 171492 (Rat)
Alternate Names
EC; MAP/ERK kinase kinase 2; MAP3K2; MAPK/ERK kinase kinase 2; MAPKKK2; MEK kinase 2; MEKK 2; MEKK2; MEKK2B; mitogen-activated protein kinase kinase kinase 2

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Human/Mouse/Rat MEKK2 Antibody
By Anonymous on 11/30/2021
Application: Immunocytochemistry/Immunofluorescence Sample Tested: HeLa cells Species: Human