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基本情報
登録情報 | データベース: PDB / ID: 8yaa | ||||||
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タイトル | Cryo-EM structure of MIK2-SCOOP12-BAK1 | ||||||
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![]() | TRANSFERASE/PLANT PROTEIN / LRR-RLK / SERK / MIK2 / SCOOP / BAK1 / PLANT PROTEIN / TRANSFERASE / PLANT PROTEIN complex / TRANSFERASE-PLANT PROTEIN complex | ||||||
機能・相同性 | ![]() plant-type cell wall organization / indole glucosinolate biosynthetic process / regulation of unidimensional cell growth / regulation of root development / positive regulation of defense response / pollen tube / cell-cell signaling involved in cell fate commitment / regulation of defense response to fungus / regulation of defense response to bacterium / pollen tube guidance ...plant-type cell wall organization / indole glucosinolate biosynthetic process / regulation of unidimensional cell growth / regulation of root development / positive regulation of defense response / pollen tube / cell-cell signaling involved in cell fate commitment / regulation of defense response to fungus / regulation of defense response to bacterium / pollen tube guidance / response to herbivore / regulation of root meristem growth / defense response to insect / response to insect / LRR domain binding / peptide receptor activity / jasmonic acid biosynthetic process / cellular response to peptide / apoplast / plasmodesma / receptor serine/threonine kinase binding / regulation of reactive oxygen species metabolic process / negative regulation of reactive oxygen species metabolic process / peptide binding / response to bacterium / response to molecule of bacterial origin / defense response / hepatocyte growth factor receptor activity / macrophage colony-stimulating factor receptor activity / platelet-derived growth factor alpha-receptor activity / platelet-derived growth factor beta-receptor activity / stem cell factor receptor activity / boss receptor activity / protein tyrosine kinase collagen receptor activity / brain-derived neurotrophic factor receptor activity / transmembrane-ephrin receptor activity / GPI-linked ephrin receptor activity / epidermal growth factor receptor activity / fibroblast growth factor receptor activity / insulin-like growth factor receptor activity / receptor protein-tyrosine kinase / response to wounding / eukaryotic translation initiation factor 2alpha kinase activity / 3-phosphoinositide-dependent protein kinase activity / DNA-dependent protein kinase activity / ribosomal protein S6 kinase activity / histone H3S10 kinase activity / histone H2AXS139 kinase activity / histone H3S28 kinase activity / histone H4S1 kinase activity / histone H2BS14 kinase activity / histone H3T3 kinase activity / histone H2AS121 kinase activity / Rho-dependent protein serine/threonine kinase activity / histone H2BS36 kinase activity / histone H3S57 kinase activity / histone H2AT120 kinase activity / AMP-activated protein kinase activity / histone H2AS1 kinase activity / histone H3T6 kinase activity / histone H3T11 kinase activity / histone H3T45 kinase activity / non-specific serine/threonine protein kinase / endosome membrane / signaling receptor binding / protein serine kinase activity / ATP binding / identical protein binding / plasma membrane 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: 3.34 Å | ||||||
![]() | Jia, F.S. / Xiao, Y. / Chai, J.J. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: N-glycosylation facilitates the activation of a plant cell-surface receptor. 著者: Fangshuai Jia / Yu Xiao / Yaojie Feng / Jinghui Yan / Mingzhu Fan / Yue Sun / Shijia Huang / Weiguo Li / Tian Zhao / Zhifu Han / Shuguo Hou / Jijie Chai / ![]() 要旨: Plant receptor kinases (RKs) are critical for transmembrane signalling involved in various biological processes including plant immunity. MALE DISCOVERER1-INTERACTING RECEPTOR-LIKE KINASE 2 (MIK2) is ...Plant receptor kinases (RKs) are critical for transmembrane signalling involved in various biological processes including plant immunity. MALE DISCOVERER1-INTERACTING RECEPTOR-LIKE KINASE 2 (MIK2) is a unique RK that recognizes a family of immunomodulatory peptides called SERINE-RICH ENDOGENOUS PEPTIDEs (SCOOPs) and activates pattern-triggered immunity responses. However, the precise mechanisms underlying SCOOP recognition and activation of MIK2 remain poorly understood. Here we present the cryogenic electron microscopy structure of a ternary complex consisting of the extracellular leucine-rich repeat (LRR) of MIK2 (MIK2LRR), SCOOP12 and the extracellular LRR of the co-receptor BAK1 (BAK1LRR) at a resolution of 3.34 Å. The structure reveals that a DNHH motif in MIK2LRR plays a critical role in specifically recognizing the highly conserved SxS motif of SCOOP12. Furthermore, the structure demonstrates that N-glycans at MIK2LRR directly interact with the N-terminal capping region of BAK1LRR. Mutation of the glycosylation site, MIK2LRR, completely abolishes the SCOOP12-independent interaction between MIK2LRR and BAK1LRR and substantially impairs the assembly of the MIK2LRR-SCOOP12-BAK1LRR complex. Supporting the biological relevance of N410-glycosylation, MIK2 substantially compromises SCOOP12-triggered immune responses in plants. Collectively, these findings elucidate the mechanism underlying the loose specificity of SCOOP recognition by MIK2 and reveal an unprecedented mechanism by which N-glycosylation modification of LRR-RK promotes receptor activation. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 170.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 132 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.7 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.7 MB | 表示 | |
XML形式データ | ![]() | 36.3 KB | 表示 | |
CIF形式データ | ![]() | 52 KB | 表示 | |
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 | ![]() 39093MC 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 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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要素
-タンパク質 , 2種, 2分子 CA
#1: タンパク質 | 分子量: 19160.684 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: BAK1, ELG, SERK3, At4g33430, F17M5.190 / 発現宿主: ![]() 参照: UniProt: Q94F62, receptor protein-tyrosine kinase, non-specific serine/threonine protein kinase |
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#2: タンパク質 | 分子量: 71858.742 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: MIK2, At4g08850, T32A17.160 / 発現宿主: ![]() 参照: UniProt: Q8VZG8, non-specific serine/threonine protein kinase |
-タンパク質・ペプチド , 1種, 1分子 B
#3: タンパク質・ペプチド | 分子量: 1318.399 Da / 分子数: 1 / 由来タイプ: 合成 由来: (合成) ![]() ![]() 参照: UniProt: B3H7I1 |
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-糖 , 4種, 20分子 
#4: 多糖 | alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | ||||
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#5: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #6: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #7: 糖 | ChemComp-NAG / |
-詳細
研究の焦点であるリガンドがあるか | N |
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Has protein modification | Y |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: Ternary complex of MIK2-SCOOP12-BAK1 / タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 6 |
試料 | 濃度: 1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 3.34 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 319127 / 対称性のタイプ: POINT |
精密化 | 最高解像度: 3.34 Å |