+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 8p2m | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
タイトル | C. elegans TIR-1 protein. | ||||||||||||
![]() | NAD(+) hydrolase tir-1 | ||||||||||||
![]() | HYDROLASE / SARM1 / TIR-1 / C. elegans / neurodegeneration / cryo-EM / structural biology / NAD+ metabolism / axon Wallerian degeneration | ||||||||||||
機能・相同性 | ![]() serotonin biosynthetic process / negative regulation of MyD88-independent toll-like receptor signaling pathway / NAD+ catabolic process / NAD+ nucleosidase activity / antibacterial innate immune response / ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase / NAD+ nucleosidase activity, cyclic ADP-ribose generating / cell fate specification / response to axon injury / defense response to fungus ...serotonin biosynthetic process / negative regulation of MyD88-independent toll-like receptor signaling pathway / NAD+ catabolic process / NAD+ nucleosidase activity / antibacterial innate immune response / ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase / NAD+ nucleosidase activity, cyclic ADP-ribose generating / cell fate specification / response to axon injury / defense response to fungus / signaling adaptor activity / axon cytoplasm / small GTPase binding / intracellular protein localization / nervous system development / cell-cell signaling / cell body / defense response to Gram-negative bacterium / defense response to bacterium / axon / negative regulation of gene expression / dendrite / positive regulation of gene expression / protein kinase binding / signal transduction / positive regulation of transcription by RNA polymerase II / identical protein binding / cytoplasm 類似検索 - 分子機能 | ||||||||||||
生物種 | ![]() ![]() | ||||||||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.82 Å | ||||||||||||
![]() | Isupov, M.N. / Opatowsky, Y. | ||||||||||||
資金援助 | ![]() ![]()
| ||||||||||||
![]() | ![]() タイトル: Structure-function analysis of ceTIR-1/hSARM1 explains the lack of Wallerian axonal degeneration in C. elegans. 著者: Tami Khazma / Atira Grossman / Julia Guez-Haddad / Chengye Feng / Hadas Dabas / Radhika Sain / Michal Weitman / Ran Zalk / Michail N Isupov / Marc Hammarlund / Michael Hons / Yarden Opatowsky / ![]() ![]() ![]() ![]() 要旨: Wallerian axonal degeneration (WD) does not occur in the nematode C. elegans, in contrast to other model animals. However, WD depends on the NADase activity of SARM1, a protein that is also expressed ...Wallerian axonal degeneration (WD) does not occur in the nematode C. elegans, in contrast to other model animals. However, WD depends on the NADase activity of SARM1, a protein that is also expressed in C. elegans (ceSARM/ceTIR-1). We hypothesized that differences in SARM between species might exist and account for the divergence in WD. We first show that expression of the human (h)SARM1, but not ceTIR-1, in C. elegans neurons is sufficient to confer axon degeneration after nerve injury. Next, we determined the cryoelectron microscopy structure of ceTIR-1 and found that, unlike hSARM1, which exists as an auto-inhibited ring octamer, ceTIR-1 forms a readily active 9-mer. Enzymatically, the NADase activity of ceTIR-1 is substantially weaker (10-fold higher Km) than that of hSARM1, and even when fully active, it falls short of consuming all cellular NAD. Our experiments provide insight into the molecular mechanisms and evolution of SARM orthologs and WD across species. | ||||||||||||
履歴 |
|
-
構造の表示
構造ビューア | 分子: ![]() ![]() |
---|
-
ダウンロードとリンク
-
ダウンロード
PDBx/mmCIF形式 | ![]() | 1 MB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 872.3 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
---|
-関連構造データ
関連構造データ | ![]() 17370MC ![]() 8p2lC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
---|---|
類似構造データ | 類似検索 - 機能・相同性 ![]() |
-
リンク
-
集合体
登録構造単位 | ![]()
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
非結晶学的対称性 (NCS) | NCSドメイン:
|