Main map. Could serve as the reference to produce longer filamentous densities after applying helical symmetry. PDB 7X5K was fit into helical symmetry extended version of this map.
試料
複合体: L7 Toll/interleukin-1 receptor (TIR) domain
タンパク質・ペプチド: L7 TIR
機能・相同性
機能・相同性情報
induction of programmed cell death / NADP+ catabolic process / cGMP biosynthetic process / NAD+ catabolic process / cAMP biosynthetic process / DNA catabolic process / RNA catabolic process / cAMP binding / defense response / ADP binding ...induction of programmed cell death / NADP+ catabolic process / cGMP biosynthetic process / NAD+ catabolic process / cAMP biosynthetic process / DNA catabolic process / RNA catabolic process / cAMP binding / defense response / ADP binding / double-stranded RNA binding / double-stranded DNA binding / hydrolase activity / signal transduction 類似検索 - 分子機能
ジャーナル: Cell / 年: 2022 タイトル: TIR domains of plant immune receptors are 2',3'-cAMP/cGMP synthetases mediating cell death. 著者: Dongli Yu / Wen Song / Eddie Yong Jun Tan / Li Liu / Yu Cao / Jan Jirschitzka / Ertong Li / Elke Logemann / Chenrui Xu / Shijia Huang / Aolin Jia / Xiaoyu Chang / Zhifu Han / Bin Wu / Paul ...著者: Dongli Yu / Wen Song / Eddie Yong Jun Tan / Li Liu / Yu Cao / Jan Jirschitzka / Ertong Li / Elke Logemann / Chenrui Xu / Shijia Huang / Aolin Jia / Xiaoyu Chang / Zhifu Han / Bin Wu / Paul Schulze-Lefert / Jijie Chai / 要旨: 2',3'-cAMP is a positional isomer of the well-established second messenger 3',5'-cAMP, but little is known about the biology of this noncanonical cyclic nucleotide monophosphate (cNMP). ...2',3'-cAMP is a positional isomer of the well-established second messenger 3',5'-cAMP, but little is known about the biology of this noncanonical cyclic nucleotide monophosphate (cNMP). Toll/interleukin-1 receptor (TIR) domains of nucleotide-binding leucine-rich repeat (NLR) immune receptors have the NADase function necessary but insufficient to activate plant immune responses. Here, we show that plant TIR proteins, besides being NADases, act as 2',3'-cAMP/cGMP synthetases by hydrolyzing RNA/DNA. Structural data show that a TIR domain adopts distinct oligomers with mutually exclusive NADase and synthetase activity. Mutations specifically disrupting the synthetase activity abrogate TIR-mediated cell death in Nicotiana benthamiana (Nb), supporting an important role for these cNMPs in TIR signaling. Furthermore, the Arabidopsis negative regulator of TIR-NLR signaling, NUDT7, displays 2',3'-cAMP/cGMP but not 3',5'-cAMP/cGMP phosphodiesterase activity and suppresses cell death activity of TIRs in Nb. Our study identifies a family of 2',3'-cAMP/cGMP synthetases and establishes a critical role for them in plant immune responses.
ダウンロード / ファイル: emd_32121.map.gz / 形式: CCP4 / 大きさ: 15.6 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
注釈
Main map. Could serve as the reference to produce longer filamentous densities after applying helical symmetry. PDB 7X5K was fit into helical symmetry extended version of this map.