The protein encoded by this gene was identified as a regulator of the MAP kinase kinase kinase MAP3K7/TAK1, which is known to mediate various intracellular signaling pathways, such as those induced by TGF beta, interleukin 1, and WNT-1. This protein interacts and thus activates TAK1 kinase. It has been shown that the C-terminal portion of this protein is sufficient for binding and activation of TAK1, while a portion of the N-terminus acts as a dominant-negative inhibitor of TGF beta, suggesting that this protein may function as a mediator between TGF beta receptors and TAK1. This protein can also interact with and activate the mitogen-activated protein kinase 14 (MAPK14/p38alpha), and thus represents an alternative activation pathway, in addition to the MAPKK pathways, which contributes to the biological responses of MAPK14 to various stimuli. Alternatively spliced transcript variants encoding distinct isoforms have been reported.[3]
↑Shibuya H, Yamaguchi K, Shirakabe K, Tonegawa A, Gotoh Y, Ueno N, Irie K, Nishida E, Matsumoto K (July 1996). "TAB1: an activator of the TAK1 MAPKKK in TGF-beta signal transduction". Science. 272 (5265): 1179–82. doi:10.1126/science.272.5265.1179. PMID8638164.
↑Sakurai H, Miyoshi H, Toriumi W, Sugita T (May 1999). "Functional interactions of transforming growth factor beta-activated kinase 1 with IkappaB kinases to stimulate NF-kappaB activation". J Biol Chem. 274 (15): 10641–8. doi:10.1074/jbc.274.15.10641. PMID10187861.
↑ 12.012.1Ninomiya-Tsuji J, Kishimoto K, Hiyama A, Inoue J, Cao Z, Matsumoto K (March 1999). "The kinase TAK1 can activate the NIK-I kappaB as well as the MAP kinase cascade in the IL-1 signalling pathway". Nature. 398 (6724): 252–6. doi:10.1038/18465. PMID10094049.
↑Channavajhala PL, Wu L, Cuozzo JW, Hall JP, Liu W, Lin LL, Zhang Y (November 2003). "Identification of a novel human kinase supporter of Ras (hKSR-2) that functions as a negative regulator of Cot (Tpl2) signaling". J. Biol. Chem. 278 (47): 47089–97. doi:10.1074/jbc.M306002200. PMID12975377.
↑Sakurai H, Miyoshi H, Mizukami J, Sugita T (June 2000). "Phosphorylation-dependent activation of TAK1 mitogen-activated protein kinase kinase kinase by TAB1". FEBS Lett. 474 (2–3): 141–5. doi:10.1016/s0014-5793(00)01588-x. PMID10838074.
↑Ge B, Gram H, Di Padova F, Huang B, New L, Ulevitch RJ, Luo Y, Han J (February 2002). "MAPKK-independent activation of p38alpha mediated by TAB1-dependent autophosphorylation of p38alpha". Science. 295 (5558): 1291–4. doi:10.1126/science.1067289. PMID11847341.
↑Yanagisawa M, Nakashima K, Takeda K, Ochiai W, Takizawa T, Ueno M, Takizawa M, Shibuya H, Taga T (December 2001). "Inhibition of BMP2-induced, TAK1 kinase-mediated neurite outgrowth by Smad6 and Smad7". Genes Cells. 6 (12): 1091–9. doi:10.1046/j.1365-2443.2001.00483.x. PMID11737269.
↑Sanna MG, da Silva Correia J, Luo Y, Chuang B, Paulson LM, Nguyen B, Deveraux QL, Ulevitch RJ (August 2002). "ILPIP, a novel anti-apoptotic protein that enhances XIAP-mediated activation of JNK1 and protection against apoptosis". J. Biol. Chem. 277 (34): 30454–62. doi:10.1074/jbc.M203312200. PMID12048196.
↑Kurozumi K, Nishita M, Yamaguchi K, Fujita T, Ueno N, Shibuya H (April 1998). "BRAM1, a BMP receptor-associated molecule involved in BMP signalling". Genes Cells. 3 (4): 257–64. doi:10.1046/j.1365-2443.1998.00186.x. PMID9663660.
Further reading
Kurozumi K, Nishita M, Yamaguchi K, Fujita T, Ueno N, Shibuya H (1998). "BRAM1, a BMP receptor-associated molecule involved in BMP signalling". Genes Cells. 3 (4): 257–64. doi:10.1046/j.1365-2443.1998.00186.x. PMID9663660.
Ninomiya-Tsuji J, Kishimoto K, Hiyama A, Inoue J, Cao Z, Matsumoto K (1999). "The kinase TAK1 can activate the NIK-I kappaB as well as the MAP kinase cascade in the IL-1 signalling pathway". Nature. 398 (6724): 252–6. doi:10.1038/18465. PMID10094049.
Dunham I, Shimizu N, Roe BA, Chissoe S, Hunt AR, Collins JE, Bruskiewich R, Beare DM, Clamp M, Smink LJ, Ainscough R, Almeida JP, Babbage A, Bagguley C, Bailey J, Barlow K, Bates KN, Beasley O, Bird CP, Blakey S, Bridgeman AM, Buck D, Burgess J, Burrill WD, O'Brien KP (1999). "The DNA sequence of human chromosome 22". Nature. 402 (6761): 489–95. doi:10.1038/990031. PMID10591208.
Kishimoto K, Matsumoto K, Ninomiya-Tsuji J (2000). "TAK1 mitogen-activated protein kinase kinase kinase is activated by autophosphorylation within its activation loop". J. Biol. Chem. 275 (10): 7359–64. doi:10.1074/jbc.275.10.7359. PMID10702308.
Sakurai H, Miyoshi H, Mizukami J, Sugita T (2000). "Phosphorylation-dependent activation of TAK1 mitogen-activated protein kinase kinase kinase by TAB1". FEBS Lett. 474 (2–3): 141–5. doi:10.1016/S0014-5793(00)01588-X. PMID10838074.
Ono K, Ohtomo T, Sato S, Sugamata Y, Suzuki M, Hisamoto N, Ninomiya-Tsuji J, Tsuchiya M, Matsumoto K (2001). "An evolutionarily conserved motif in the TAB1 C-terminal region is necessary for interaction with and activation of TAK1 MAPKKK". J. Biol. Chem. 276 (26): 24396–400. doi:10.1074/jbc.M102631200. PMID11323434.
Qian Y, Commane M, Ninomiya-Tsuji J, Matsumoto K, Li X (2001). "IRAK-mediated translocation of TRAF6 and TAB2 in the interleukin-1-induced activation of NFkappa B.". J. Biol. Chem. 276 (45): 41661–7. doi:10.1074/jbc.M102262200. PMID11518704.
Yanagisawa M, Nakashima K, Takeda K, Ochiai W, Takizawa T, Ueno M, Takizawa M, Shibuya H, Taga T (2002). "Inhibition of BMP2-induced, TAK1 kinase-mediated neurite outgrowth by Smad6 and Smad7". Genes Cells. 6 (12): 1091–9. doi:10.1046/j.1365-2443.2001.00483.x. PMID11737269.
Ge B, Gram H, Di Padova F, Huang B, New L, Ulevitch RJ, Luo Y, Han J (2002). "MAPKK-independent activation of p38alpha mediated by TAB1-dependent autophosphorylation of p38alpha". Science. 295 (5558): 1291–4. doi:10.1126/science.1067289. PMID11847341.
Sakurai H, Nishi A, Sato N, Mizukami J, Miyoshi H, Sugita T (2002). "TAK1-TAB1 fusion protein: a novel constitutively active mitogen-activated protein kinase kinase kinase that stimulates AP-1 and NF-kappaB signaling pathways". Biochem. Biophys. Res. Commun. 297 (5): 1277–81. doi:10.1016/S0006-291X(02)02379-3. PMID12372426.
Ge B, Xiong X, Jing Q, Mosley JL, Filose A, Bian D, Huang S, Han J (2003). "TAB1beta (transforming growth factor-beta-activated protein kinase 1-binding protein 1beta ), a novel splicing variant of TAB1 that interacts with p38alpha but not TAK1". J. Biol. Chem. 278 (4): 2286–93. doi:10.1074/jbc.M210918200. PMID12429732.
Suzawa M, Takada I, Yanagisawa J, Ohtake F, Ogawa S, Yamauchi T, Kadowaki T, Takeuchi Y, Shibuya H, Gotoh Y, Matsumoto K, Kato S (2003). "Cytokines suppress adipogenesis and PPAR-gamma function through the TAK1/TAB1/NIK cascade". Nat. Cell Biol. 5 (3): 224–30. doi:10.1038/ncb942. PMID12598905.
Tanno M, Bassi R, Gorog DA, Saurin AT, Jiang J, Heads RJ, Martin JL, Davis RJ, Flavell RA, Marber MS (2003). "Diverse mechanisms of myocardial p38 mitogen-activated protein kinase activation: evidence for MKK-independent activation by a TAB1-associated mechanism contributing to injury during myocardial ischemia". Circ. Res. 93 (3): 254–61. doi:10.1161/01.RES.0000083490.43943.85. PMID12829618.
Channavajhala PL, Wu L, Cuozzo JW, Hall JP, Liu W, Lin LL, Zhang Y (2004). "Identification of a novel human kinase supporter of Ras (hKSR-2) that functions as a negative regulator of Cot (Tpl2) signaling". J. Biol. Chem. 278 (47): 47089–97. doi:10.1074/jbc.M306002200. PMID12975377.