O-GlcNAcylation of TAB1 modulates TAK1-mediated cytokine release. / Pathak, Shalini; Borodkin, Vladimir S.; Albarbarawi, Osama; Campbell, David G.; Ibrahim, Adel; van Aalten, Daan M. F.
In: EMBO Journal, Vol. 31, No. 6, 21.03.2012, p. 1394-1404.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - O-GlcNAcylation of TAB1 modulates TAK1-mediated cytokine release
A1 - Pathak,Shalini
A1 - Borodkin,Vladimir S.
A1 - Albarbarawi,Osama
A1 - Campbell,David G.
A1 - Ibrahim,Adel
A1 - van Aalten,Daan M. F.
AU - Pathak,Shalini
AU - Borodkin,Vladimir S.
AU - Albarbarawi,Osama
AU - Campbell,David G.
AU - Ibrahim,Adel
AU - van Aalten,Daan M. F.
PY - 2012/3/21
Y1 - 2012/3/21
N2 - <p>Transforming growth factor (TGF)-beta-activated kinase 1 (TAK1) is a key serine/threonine protein kinase that mediates signals transduced by pro-inflammatory cytokines such as transforming growth factor-beta, tumour necrosis factor (TNF), interleukin-1 (IL-1) and wnt family ligands. TAK1 is found in complex with binding partners TAB1-3, phosphorylation and ubiquitination of which has been found to regulate TAK1 activity. In this study, we show that TAB1 is modified with N-acetylglucosamine (O-GlcNAc) on a single site, Ser395. With the help of a novel O-GlcNAc site-specific antibody, we demonstrate that O-GlcNAcylation of TAB1 is induced by IL-1 and osmotic stress, known inducers of the TAK1 signalling cascade. By reintroducing wild-type or an O-GlcNAc-deficient mutant TAB1 (S395A) into Tab1(-/-) mouse embryonic fibroblasts, we determined that O-GlcNAcylation of TAB1 is required for full TAK1 activation upon stimulation with IL-1/osmotic stress, for downstream activation of nuclear factor kappa B and finally production of IL-6 and TNF alpha. This is one of the first examples of a single O-GlcNAc site on a signalling protein modulating a key innate immunity signalling pathway. The EMBO Journal (2012) 31, 1394-1404. doi:10.1038/emboj. 2012.8; Published online 3 February 2012</p>
AB - <p>Transforming growth factor (TGF)-beta-activated kinase 1 (TAK1) is a key serine/threonine protein kinase that mediates signals transduced by pro-inflammatory cytokines such as transforming growth factor-beta, tumour necrosis factor (TNF), interleukin-1 (IL-1) and wnt family ligands. TAK1 is found in complex with binding partners TAB1-3, phosphorylation and ubiquitination of which has been found to regulate TAK1 activity. In this study, we show that TAB1 is modified with N-acetylglucosamine (O-GlcNAc) on a single site, Ser395. With the help of a novel O-GlcNAc site-specific antibody, we demonstrate that O-GlcNAcylation of TAB1 is induced by IL-1 and osmotic stress, known inducers of the TAK1 signalling cascade. By reintroducing wild-type or an O-GlcNAc-deficient mutant TAB1 (S395A) into Tab1(-/-) mouse embryonic fibroblasts, we determined that O-GlcNAcylation of TAB1 is required for full TAK1 activation upon stimulation with IL-1/osmotic stress, for downstream activation of nuclear factor kappa B and finally production of IL-6 and TNF alpha. This is one of the first examples of a single O-GlcNAc site on a signalling protein modulating a key innate immunity signalling pathway. The EMBO Journal (2012) 31, 1394-1404. doi:10.1038/emboj. 2012.8; Published online 3 February 2012</p>
U2 - 10.1038/emboj.2012.8
DO - 10.1038/emboj.2012.8
M1 - Article
JO - EMBO Journal
JF - EMBO Journal
SN - 0261-4189
IS - 6
VL - 31
SP - 1394
EP - 1404
ER -