Abstract
Tumor necrosis factor (TNF) and interleukin-1 (IL-1) are pleiotropic cytokines that activate two transcription factors, Activator Protein-1 (AP-1) and Nuclear Factor-kappa B (NF-kappa B). Apoptosis signal-regulating kinase 1 (ASK 1) is a mitogen-activated protein (MAP) kinase kinase kinase (MAPKKK) that is activated by TNF and IL-1, and stimulates c-Jun N-terminal kinase (JNK also known as SAPK; stress-activated protein kinase) and p38 activation. Through genetic screening for ASK 1-binding proteins, Transforming Growth Factor beta (TGF-beta)-activated kinase (TAK 1), another MAPKKK family protein, was identified. Here we report that ASK 1 binds to TAK 1 and dissociates TAK 1 from TNF receptor-associated factor 6 (TRAF 6), and inhibits TAK 1- and TRAF 6-, but not NF-kappa B-inducing kinase (NIK)-induced NF-kappa B activation.
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Schedule a callMore From: Kokubyo Gakkai zasshi. The Journal of the Stomatological Society, Japan
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