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基本情報
登録情報 | データベース: PDB / ID: 7m0r | ||||||||||||||||||
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タイトル | Cryo-EM structure of the Sema3A/PlexinA4/Neuropilin 1 complex | ||||||||||||||||||
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![]() | SIGNALING PROTEIN / plexin / semaphorin / neuropilin / signaling | ||||||||||||||||||
機能・相同性 | ![]() Neurophilin interactions with VEGF and VEGFR / neural crest cell migration involved in sympathetic nervous system development / glossopharyngeal nerve morphogenesis / chemorepulsion of branchiomotor axon / regulation of negative chemotaxis / vagus nerve morphogenesis / cell migration involved in coronary vasculogenesis / cranial nerve morphogenesis / trigeminal nerve morphogenesis / Signal transduction by L1 ...Neurophilin interactions with VEGF and VEGFR / neural crest cell migration involved in sympathetic nervous system development / glossopharyngeal nerve morphogenesis / chemorepulsion of branchiomotor axon / regulation of negative chemotaxis / vagus nerve morphogenesis / cell migration involved in coronary vasculogenesis / cranial nerve morphogenesis / trigeminal nerve morphogenesis / Signal transduction by L1 / anterior commissure morphogenesis / regulation of axon extension involved in axon guidance / postganglionic parasympathetic fiber development / facial nerve morphogenesis / basal dendrite development / otic placode development / CRMPs in Sema3A signaling / protein localization to early endosome / Sema3A PAK dependent Axon repulsion / basal dendrite arborization / dichotomous subdivision of terminal units involved in salivary gland branching / positive regulation of smooth muscle cell chemotaxis / sympathetic neuron axon guidance / retina vasculature morphogenesis in camera-type eye / vestibulocochlear nerve structural organization / dorsal root ganglion morphogenesis / ventral trunk neural crest cell migration / sympathetic neuron projection guidance / facioacoustic ganglion development / trigeminal ganglion development / epithelial cell migration / trigeminal nerve structural organization / sensory neuron axon guidance / postsynapse organization / facial nerve structural organization / gonadotrophin-releasing hormone neuronal migration to the hypothalamus / branchiomotor neuron axon guidance / semaphorin receptor binding / positive regulation of male gonad development / negative regulation of axon extension involved in axon guidance / axon extension involved in axon guidance / blood vessel endothelial cell migration / renal artery morphogenesis / VEGF-activated neuropilin signaling pathway / SEMA3A-Plexin repulsion signaling by inhibiting Integrin adhesion / neurofilament / cerebellar climbing fiber to Purkinje cell synapse / maintenance of synapse structure / sympathetic neuron projection extension / synaptic target recognition / vascular endothelial growth factor binding / negative regulation of epithelial cell migration / angiogenesis involved in coronary vascular morphogenesis / motor neuron migration / neural crest cell migration involved in autonomic nervous system development / retina vasculature development in camera-type eye / sympathetic ganglion development / negative regulation of axon extension / positive regulation of axon extension involved in axon guidance / endothelial cell chemotaxis / axonogenesis involved in innervation / vascular endothelial growth factor receptor activity / nerve development / positive regulation of neuron migration / neuropilin signaling pathway / olfactory bulb development / sympathetic nervous system development / neuropilin binding / substrate-dependent cell migration, cell extension / positive regulation of platelet-derived growth factor receptor signaling pathway / hepatocyte growth factor receptor signaling pathway / coronary artery morphogenesis / chemorepellent activity / semaphorin receptor activity / commissural neuron axon guidance / outflow tract septum morphogenesis / embryonic heart tube development / motor neuron axon guidance / positive regulation of vascular associated smooth muscle cell migration / axonal fasciculation / retinal ganglion cell axon guidance / sprouting angiogenesis / cell migration involved in sprouting angiogenesis / axon extension / regulation of Cdc42 protein signal transduction / positive regulation of filopodium assembly / positive regulation of cell migration involved in sprouting angiogenesis / artery morphogenesis / negative chemotaxis / cellular response to hepatocyte growth factor stimulus / growth factor binding / branching involved in blood vessel morphogenesis / dendrite morphogenesis / positive chemotaxis / sorting endosome / platelet-derived growth factor receptor signaling pathway / dendrite development / semaphorin-plexin signaling pathway / neuron projection morphogenesis / positive regulation of phosphorylation 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: 3.7 Å | ||||||||||||||||||
![]() | Lu, D. / Shang, G. / He, X. / Bai, X. / Zhang, X. | ||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Architecture of the Sema3A/PlexinA4/Neuropilin tripartite complex. 著者: Defen Lu / Guijun Shang / Xiaojing He / Xiao-Chen Bai / Xuewu Zhang / ![]() ![]() 要旨: Secreted class 3 semaphorins (Sema3s) form tripartite complexes with the plexin receptor and neuropilin coreceptor, which are both transmembrane proteins that together mediate semaphorin signal for ...Secreted class 3 semaphorins (Sema3s) form tripartite complexes with the plexin receptor and neuropilin coreceptor, which are both transmembrane proteins that together mediate semaphorin signal for neuronal axon guidance and other processes. Despite extensive investigations, the overall architecture of and the molecular interactions in the Sema3/plexin/neuropilin complex are incompletely understood. Here we present the cryo-EM structure of a near intact extracellular region complex of Sema3A, PlexinA4 and Neuropilin 1 (Nrp1) at 3.7 Å resolution. The structure shows a large symmetric 2:2:2 assembly in which each subunit makes multiple interactions with others. The two PlexinA4 molecules in the complex do not interact directly, but their membrane proximal regions are close to each other and poised to promote the formation of the intracellular active dimer for signaling. The structure reveals a previously unknown interface between the a2b1b2 module in Nrp1 and the Sema domain of Sema3A. This interaction places the a2b1b2 module at the top of the complex, far away from the plasma membrane where the transmembrane regions of Nrp1 and PlexinA4 embed. As a result, the region following the a2b1b2 module in Nrp1 must span a large distance to allow the connection to the transmembrane region, suggesting an essential role for the long non-conserved linkers and the MAM domain in neuropilin in the semaphorin/plexin/neuropilin complex. | ||||||||||||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 731.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 566.2 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 | ![]() | 1008.1 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.1 MB | 表示 | |
XML形式データ | ![]() | 117.1 KB | 表示 | |
CIF形式データ | ![]() | 181.1 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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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
#1: タンパク質 | 分子量: 64132.211 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #2: タンパク質 | 分子量: 67931.812 Da / 分子数: 2 / Mutation: A106K,551ARTRA555,731AAQAA735,758ANRA761 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #3: 抗体 | 分子量: 133253.203 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #4: 化合物 | ChemComp-CA / 研究の焦点であるリガンドがあるか | N | Has protein modification | Y | 配列の詳細 | The full sequence of Semaphorin-3A is NYANGKNNVPRLKLSYKEMLESNNVITFNGLANSSSYHTFLLDEERSRLYVGAKDHIFSF ...The full sequence of Semaphorin-3A is NYANGKNNVP | |
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-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 Sema3A, PlexinA4 and neuropilin 1 タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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分子量 | 値: 600 kDa/nm / 実験値: YES |
由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.5 |
試料 | 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 / Cs: 2.7 mm / C2レンズ絞り径: 100 µm |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 1453090 | ||||||||||||||||||||||||
対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 26741 / 対称性のタイプ: POINT |