Required for lipopolysaccharide (LPS)-induced, TLR4-mediated activation of the MAPK/ERK pathway in macrophages, thus being critical for production of the pro-inflammatory cytokine TNF-alpha (TNF) during immune responses. Involved in the regulation of T-helper cell differentiation and IFNG expression in T-cells. Involved in mediating host resistance to bacterial infection through negative regulation of type I interferon (IFN) production. In vitro, activates MAPK/ERK pathway in response to IL1 in an IRAK1-independent manner, leading to up-regulation of IL8 and CCL4. Transduces CD40 and TNFRSF1A signals that activate ERK in B-cells and macrophages, and thus may play a role in the regulation of immunoglobulin production. May also play a role in the transduction of TNF signals that activate JNK and NF-kappa-B in some cell types. In adipocytes, activates MAPK/ERK pathway in an IKBKB-dependent manner in response to IL1B and TNF, but not insulin, leading to induction of lipolysis. Plays a role in the cell cycle. Isoform 1 shows some transforming activity, although it is much weaker than that of the activated oncogenic variant.

Mitogen-activated protein kinase kinase kinase 8 (EC 2.7.11.25) (Cancer Osaka thyroid oncogene) (Proto-oncogene c-Cot) (Serine/threonine-protein kinase cot) (Tumor progression locus 2) (TPL-2)
MAP3K8 COT ESTF AURA2; c-COT; COT; EST; ESTF; MEKK8; Tpl-2; TPL2

P41279

Human, Mouse, Rat

WB

WB 1:500

52.7 kDa

Mouse

Human recombinant protein fragment corresponding to amino acids 277-461 of human MAP3K8(NP_005195) produced in E.coli.

Monoclonal

Purified from mouse ascites fluids or tissue culture supernatant by affinity chromatography (protein A/G)

PBS (pH 7.3) containing 1% BSA, 50% glycerol and 0.02% sodium azide.

Store at -20 °C. Stable for 12 months from date of receipt.