regulation of activation-induced cell death of T cells / regulation of CD8-positive, alpha-beta cytotoxic T cell extravasation / execution phase of necroptosis / regulation of T cell mediated cytotoxicity / regulation of adaptive immune response / regulation of activated T cell proliferation / positive regulation of phosphatase activity / regulation of type II interferon production / TRIF-mediated programmed cell death / TLR3-mediated TICAM1-dependent programmed cell death ...regulation of activation-induced cell death of T cells / regulation of CD8-positive, alpha-beta cytotoxic T cell extravasation / execution phase of necroptosis / regulation of T cell mediated cytotoxicity / regulation of adaptive immune response / regulation of activated T cell proliferation / positive regulation of phosphatase activity / regulation of type II interferon production / TRIF-mediated programmed cell death / TLR3-mediated TICAM1-dependent programmed cell death / Microbial modulation of RIPK1-mediated regulated necrosis / programmed necrotic cell death / SARS-CoV-1-mediated effects on programmed cell death / necroptotic signaling pathway / positive regulation of necroptotic process / RIP-mediated NFkB activation via ZBP1 / TRP channels / non-canonical NF-kappaB signal transduction / RIPK1-mediated regulated necrosis / activation of protein kinase activity / T cell homeostasis / necroptotic process / lymph node development / positive regulation of intrinsic apoptotic signaling pathway / spleen development / reactive oxygen species metabolic process / TICAM1, RIP1-mediated IKK complex recruitment / IKK complex recruitment mediated by RIP1 / thymus development / apoptotic signaling pathway / protein modification process / Regulation of necroptotic cell death / cellular response to hydrogen peroxide / SARS-CoV-1 activates/modulates innate immune responses / positive regulation of reactive oxygen species metabolic process / positive regulation of NF-kappaB transcription factor activity / T cell differentiation in thymus / regulation of apoptotic process / defense response to virus / transcription coactivator activity / protein autophosphorylation / amyloid fibril formation / non-specific serine/threonine protein kinase / protein kinase activity / protein serine kinase activity / protein serine/threonine kinase activity / protein-containing complex binding / signal transduction / protein-containing complex / ATP binding / identical protein binding / nucleus / cytoplasm / cytosol 類似検索 - 分子機能
RHIM domain / RIP homotypic interaction motif / : / Serine/threonine-protein kinase, active site / Serine/Threonine protein kinases active-site signature. / Serine/Threonine protein kinases, catalytic domain / Protein kinase domain / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Protein kinase domain profile. ...RHIM domain / RIP homotypic interaction motif / : / Serine/threonine-protein kinase, active site / Serine/Threonine protein kinases active-site signature. / Serine/Threonine protein kinases, catalytic domain / Protein kinase domain / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Protein kinase domain profile. / Protein kinase domain / Protein kinase-like domain superfamily 類似検索 - ドメイン・相同性
ジャーナル: Proc Natl Acad Sci U S A / 年: 2021 タイトル: The structure of a minimum amyloid fibril core formed by necroptosis-mediating RHIM of human RIPK3. 著者: Xialian Wu / Yeyang Ma / Kun Zhao / Jing Zhang / Yunpeng Sun / Yichen Li / Xingqi Dong / Hong Hu / Jing Liu / Jian Wang / Xia Zhang / Bing Li / Huayi Wang / Dan Li / Bo Sun / Junxia Lu / Cong Liu / 要旨: Receptor-interacting protein kinases 3 (RIPK3), a central node in necroptosis, polymerizes in response to the upstream signals and then activates its downstream mediator to induce cell death. The ...Receptor-interacting protein kinases 3 (RIPK3), a central node in necroptosis, polymerizes in response to the upstream signals and then activates its downstream mediator to induce cell death. The active polymeric form of RIPK3 has been indicated as the form of amyloid fibrils assembled via its RIP homotypic interaction motif (RHIM). In this study, we combine cryogenic electron microscopy and solid-state NMR to determine the amyloid fibril structure of RIPK3 RHIM-containing C-terminal domain (CTD). The structure reveals a single protofilament composed of the RHIM domain. RHIM forms three β-strands (referred to as strands 1 through 3) folding into an S shape, a distinct fold from that in complex with RIPK1. The consensus tetrapeptide VQVG of RHIM forms strand 2, which zips up strands 1 and 3 via heterozipper-like interfaces. Notably, the RIPK3-CTD fibril, as a physiological fibril, exhibits distinctive assembly compared with pathological fibrils. It has an exceptionally small fibril core and twists in both handedness with the smallest pitch known so far. These traits may contribute to a favorable spatial arrangement of RIPK3 kinase domain for efficient phosphorylation.