Anti-Human TAB1

PN:T362

This polyclonal antibody is formulated in phosphate buffered saline (PBS) pH 7.4 containing 0.02% sodium azide as a preservative.

This polyclonal antibody is stable for at least one week when stored at 2-8°C. For long term storage, aliquot in working volumes without diluting and store at –20°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles.

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Rabbit Anti-Human TAB1 recognizes human and mouse TAB1. This polyclonal antibody was purified using affinity chromatography.

TAB1 was identified as a regulator of the MAP kinase kinase kinase TAK1/MAP3K7 (1), which is known to mediate various intracellular signaling pathways, such as those induced by TGF-β and members of the Toll-IL-1R (TIR) superfamily (2), thus acting as an intermediate in both proliferative and innate and adaptive immune responses (3). This protein, together with either TAB2 or TAB3, activates TAK1 kinase in response to upstream signals (4,5). It has been shown that the C-terminal portion of TAB1 is sufficient for binding and activation of TAK1, while a portion of the N-terminus acts as a dominant-negative inhibitor of TGF-β, demonstrating how this protein can function as a mediator between TGF-β receptors and TAK1 (6).

1. Shirakabe, K. et al. (1996) Science 272:1179-82.
2. Takeshige, K. et al. (2000) FEBS Lett. 467:160-4.
3. Akira, S. and Takeda, K. (2004) Nat. Rev.Immunol. 4:499-511.
4. Qian, Y. et al. (2002) Mol. Cell Biol.22:7158-67.
5. Cohen, P. et al. (2004) Biochem J. 378:27-34.
6. Ninomiya-Tsuji, J. et al. (2003) Biochem. Biophys. Res. Commun. 307:3327.