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基本情報
登録情報 | データベース: PDB / ID: 9fyq | ||||||||||||||||||||||||||||||
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タイトル | Cryo-EM structure of native SV2A in complex with TeNT-Hc, gangliosides and Pro-Macrobody 5 | ||||||||||||||||||||||||||||||
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![]() | MEMBRANE PROTEIN / synaptic vesicles / MFS transporter / neurotransmission / clostridial neurotoxins | ||||||||||||||||||||||||||||||
機能・相同性 | ![]() tentoxilysin / symbiont-mediated perturbation of host neurotransmitter secretion / Toxicity of tetanus toxin (tetX) / symbiont-mediated suppression of host exocytosis / presynaptic active zone / synaptic vesicle priming / detection of maltose stimulus / maltose transport complex / carbohydrate transport / protein transmembrane transporter activity ...tentoxilysin / symbiont-mediated perturbation of host neurotransmitter secretion / Toxicity of tetanus toxin (tetX) / symbiont-mediated suppression of host exocytosis / presynaptic active zone / synaptic vesicle priming / detection of maltose stimulus / maltose transport complex / carbohydrate transport / protein transmembrane transporter activity / transmembrane transporter activity / carbohydrate transmembrane transporter activity / maltose binding / maltose transport / maltodextrin transmembrane transport / ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing / ATP-binding cassette (ABC) transporter complex / cell chemotaxis / neuromuscular junction / clathrin-coated endocytic vesicle membrane / GABA-ergic synapse / metalloendopeptidase activity / endocytic vesicle membrane / intracellular calcium ion homeostasis / synaptic vesicle membrane / cell-cell junction / outer membrane-bounded periplasmic space / toxin activity / periplasmic space / neuron projection / DNA damage response / protein kinase binding / glutamatergic synapse / endoplasmic reticulum / proteolysis / extracellular region / zinc ion binding / membrane / plasma membrane / cytosol 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: 3.25 Å | ||||||||||||||||||||||||||||||
![]() | Schenck, S. / Brunner, J.D. | ||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structures of native SV2A reveal the binding mode for tetanus neurotoxin and anti-epileptic racetams. 著者: Stephan Schenck / Toon Laeremans / Jan Steyaert / Janine D Brunner / ![]() 要旨: The synaptic vesicle glycoprotein 2A (SV2A) is a synaptic vesicle (SV) resident with homology to the major facilitator superfamily (MFS) and essential in vertebrate neurotransmission. Despite its ...The synaptic vesicle glycoprotein 2A (SV2A) is a synaptic vesicle (SV) resident with homology to the major facilitator superfamily (MFS) and essential in vertebrate neurotransmission. Despite its unclear physiological role, SV2A is of high medical relevance as it is the target of the anti-epileptic drug Levetiracetam (LEV) and a receptor for clostridial neurotoxins (CNTs), among them presumably tetanus neurotoxin (TeNT). To obtain detailed insights about these molecular interactions we subjected native SV2A, purified from brain tissue, to cryo-EM. We discover that TeNT binds SV2A strikingly different from botulinum neurotoxin A and unveil the precise geometry of TeNT binding to dipartite SV2-ganglioside receptors. The structures deliver compelling support for SV2A as the protein receptor for TeNT in central neurons and reinforce the concepts of the dual receptor hypothesis for CNT entry into neurons. Further, our LEV-bound structure of SV2A reveals the drug-interacting residues, delineates a putative substrate pocket in SV2A and provides insights into the SV2-isoform-specificity of LEV. Our work has implications for CNT engineering from a hitherto unrecognized SV2 binding interface and for improved designs of anti-convulsant drugs in epilepsy treatment. | ||||||||||||||||||||||||||||||
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PDBx/mmCIF形式 | ![]() | 379.2 KB | 表示 | ![]() |
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-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 | ![]() | 57.2 KB | 表示 | |
CIF形式データ | ![]() | 82.6 KB | 表示 | |
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-関連構造データ
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要素
-タンパク質 , 2種, 2分子 AC
#1: タンパク質 | 分子量: 82640.938 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
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#2: タンパク質 | 分子量: 53718.535 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: C-terminal domain of the heavy chain of tetanus toxin (TeNT-Hc) 由来: (組換発現) ![]() 株: Clostridium tetani / 遺伝子: tetX, CTC_p60 / プラスミド: pET 28a / 発現宿主: ![]() ![]() |
-抗体 , 1種, 1分子 D
#3: 抗体 | 分子量: 53674.238 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: Fusion between a nanobody (Nb) and an N-terminally truncated maltose binding protein at the Nb C-terminus,Fusion between a nanobody (Nb) and an N-terminally truncated maltose binding protein at the Nb C-terminus 由来: (組換発現) ![]() ![]() ![]() ![]() プラスミド: pBXNPHM3 / 遺伝子: malE, b4034, JW3994 / 発現宿主: ![]() ![]() |
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-糖 , 2種, 3分子 
#4: 多糖 | #5: 糖 | ChemComp-NAG / | |
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-非ポリマー , 3種, 3分子 
#6: 化合物 | ChemComp-6UZ / |
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#7: 化合物 | ChemComp-A1IHM / ( |