Product info:

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.

Alternative names:

MAP3K4; MAPKKK4; MEKK 4; MEKK4; MTK1; PRO0412

Species reactivity:

Human, Rat

Host:

Rabbit

Cellular localisation:

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Isotype:

IgG

Immunogen:

A synthetic peptide corresponding to a sequence within amino acids 1-100 of human MAP3K4 (NP_005913.2).

Positive control:

K-562, Rat brain

AA Sequence:

MREAAAALVPPPAFAVTPAAAMEEPPPPPPPPPPPPEPETESEPECCLAARQEGTLGDSACKSPESDLEDFSDETNTENLYGTSPPSTPRQMKRMSTKHQ

Purification:

Affinity purification

Molecular weight:

Calculated MW: 177kDa/181kDa Observed MW: 170kDa

Form:

Liquid

Applications:

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Dilution:

WB 1:500 - 1:2000 IHC 1:100 - 1:200

Storage buffer:

Buffer: PBS with 0.02% sodium azide, 50% glycerol, pH7.3.

Storage:

Store at 4°C short term. For long-term storage, aliquot and store at -20°C or below. Stable for 12 months at -20°C. Avoid repeated freeze-thaw cycles.

More info:

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Orders:

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