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基本情報
登録情報 | データベース: PDB / ID: 6zdj | |||||||||
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タイトル | Structure of the native full-length HIV-1 capsid protein in complex with Cyclophilin A from helical assembly (-13,10) | |||||||||
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![]() | VIRAL PROTEIN / HIV / capsid / hexamer / helical assembly / curvature | |||||||||
機能・相同性 | ![]() Synthesis And Processing Of GAG, GAGPOL Polyproteins / host cellular component / host cell nuclear membrane / negative regulation of protein K48-linked ubiquitination / regulation of apoptotic signaling pathway / cell adhesion molecule production / negative regulation of viral life cycle / lipid droplet organization / heparan sulfate binding / regulation of viral genome replication ...Synthesis And Processing Of GAG, GAGPOL Polyproteins / host cellular component / host cell nuclear membrane / negative regulation of protein K48-linked ubiquitination / regulation of apoptotic signaling pathway / cell adhesion molecule production / negative regulation of viral life cycle / lipid droplet organization / heparan sulfate binding / regulation of viral genome replication / virion binding / leukocyte chemotaxis / negative regulation of stress-activated MAPK cascade / endothelial cell activation / Integration of viral DNA into host genomic DNA / Autointegration results in viral DNA circles / protein peptidyl-prolyl isomerization / Basigin interactions / cyclosporin A binding / Minus-strand DNA synthesis / Plus-strand DNA synthesis / Uncoating of the HIV Virion / 2-LTR circle formation / Vpr-mediated nuclear import of PICs / viral budding via host ESCRT complex / Early Phase of HIV Life Cycle / Integration of provirus / negative regulation of protein phosphorylation / APOBEC3G mediated resistance to HIV-1 infection / viral release from host cell / Calcineurin activates NFAT / RNA polymerase II CTD heptapeptide repeat P3 isomerase activity / RNA polymerase II CTD heptapeptide repeat P6 isomerase activity / Binding and entry of HIV virion / viral process / activation of protein kinase B activity / positive regulation of viral genome replication / negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / negative regulation of protein kinase activity / neutrophil chemotaxis / Membrane binding and targetting of GAG proteins / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / peptidyl-prolyl cis-trans isomerase activity / positive regulation of protein secretion / peptidylprolyl isomerase / Assembly Of The HIV Virion / Budding and maturation of HIV virion / positive regulation of NF-kappaB transcription factor activity / host multivesicular body / platelet activation / platelet aggregation / neuron differentiation / SARS-CoV-1 activates/modulates innate immune responses / integrin binding / viral capsid / unfolded protein binding / Platelet degranulation / positive regulation of protein phosphorylation / protein folding / viral nucleocapsid / cellular response to oxidative stress / secretory granule lumen / vesicle / ficolin-1-rich granule lumen / positive regulation of MAPK cascade / viral translational frameshifting / focal adhesion / apoptotic process / Neutrophil degranulation / host cell plasma membrane / virion membrane / structural molecule activity / protein-containing complex / extracellular space / RNA binding / extracellular exosome / extracellular region / zinc ion binding / identical protein binding / nucleus / membrane / cytosol / 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: 5.8 Å | |||||||||
![]() | Ni, T. / Gerard, S. / Zhao, G. / Ning, J. / Zhang, P. | |||||||||
資金援助 | ![]() ![]()
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![]() | ![]() タイトル: Intrinsic curvature of the HIV-1 CA hexamer underlies capsid topology and interaction with cyclophilin A. 著者: Tao Ni / Samuel Gerard / Gongpu Zhao / Kyle Dent / Jiying Ning / Jing Zhou / Jiong Shi / Jordan Anderson-Daniels / Wen Li / Sooin Jang / Alan N Engelman / Christopher Aiken / Peijun Zhang / ![]() ![]() 要旨: The mature retrovirus capsid consists of a variably curved lattice of capsid protein (CA) hexamers and pentamers. High-resolution structures of the curved assembly, or in complex with host factors, ...The mature retrovirus capsid consists of a variably curved lattice of capsid protein (CA) hexamers and pentamers. High-resolution structures of the curved assembly, or in complex with host factors, have not been available. By devising cryo-EM methodologies for exceedingly flexible and pleomorphic assemblies, we have determined cryo-EM structures of apo-CA hexamers and in complex with cyclophilin A (CypA) at near-atomic resolutions. The CA hexamers are intrinsically curved, flexible and asymmetric, revealing the capsomere and not the previously touted dimer or trimer interfaces as the key contributor to capsid curvature. CypA recognizes specific geometries of the curved lattice, simultaneously interacting with three CA protomers from adjacent hexamers via two noncanonical interfaces, thus stabilizing the capsid. By determining multiple structures from various helical symmetries, we further revealed the essential plasticity of the CA molecule, which allows formation of continuously curved conical capsids and the mechanism of capsid pattern sensing by CypA. | |||||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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-検証レポート
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-関連構造データ
関連構造データ | ![]() 11176MC ![]() 6skkC ![]() 6skmC ![]() 6sknC ![]() 6slqC ![]() 6sluC ![]() 6smuC ![]() 6y9vC ![]() 6y9wC ![]() 6y9xC ![]() 6y9yC ![]() 6y9zC ![]() 6yj5C 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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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: 24531.094 Da / 分子数: 12 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: gag / 発現宿主: ![]() ![]() #2: タンパク質 | | 分子量: 17905.307 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() Has protein modification | Y | |
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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: HELICAL ARRAY / 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 |
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分子量 | 実験値: NO | ||||||||||||||||||||||||
由来(天然) |
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由来(組換発現) |
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緩衝液 | pH: 8 | ||||||||||||||||||||||||
試料 | 濃度: 2 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: Purified capsid protein were assembled in the presence of Cyclophilin A. | ||||||||||||||||||||||||
試料支持 | グリッドのタイプ: Quantifoil R2/1 | ||||||||||||||||||||||||
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 / アライメント法: COMA FREE |
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: 40 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 実像数: 6500 |
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解析
ソフトウェア | 名称: PHENIX / バージョン: dev_3699: / 分類: 精密化 | ||||||||||||||||||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 5.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 32305 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL / Target criteria: Correlation coefficient | ||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 4XFX PDB chain-ID: A / Accession code: 4XFX / Source name: PDB / タイプ: experimental model | ||||||||||||||||||||||||||||||||||||||||
拘束条件 |
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