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基本情報
登録情報 | データベース: PDB / ID: 6zs5 | |||||||||||||||
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タイトル | 3.5 A cryo-EM structure of human uromodulin filament core | |||||||||||||||
![]() | Uromodulin | |||||||||||||||
![]() | ANTIMICROBIAL PROTEIN / Uromodulin / Umod / THP / immunoglobulin-like fold / Tamm-Horsfall protein / glycoprotein / ZP module / Zona Pellucida / fold complementation / beta-strand complementation / cryoSPARC / filament / soluble adhesion antagonist | |||||||||||||||
機能・相同性 | ![]() citric acid secretion / metanephric thick ascending limb development / metanephric distal convoluted tubule development / connective tissue replacement / protein transport into plasma membrane raft / Asparagine N-linked glycosylation / organ or tissue specific immune response / collecting duct development / urea transmembrane transport / metanephric ascending thin limb development ...citric acid secretion / metanephric thick ascending limb development / metanephric distal convoluted tubule development / connective tissue replacement / protein transport into plasma membrane raft / Asparagine N-linked glycosylation / organ or tissue specific immune response / collecting duct development / urea transmembrane transport / metanephric ascending thin limb development / regulation of protein transport / micturition / protein localization to vacuole / intracellular chloride ion homeostasis / juxtaglomerular apparatus development / antibacterial innate immune response / renal urate salt excretion / urate transport / renal sodium ion absorption / glomerular filtration / neutrophil migration / intracellular phosphate ion homeostasis / response to water deprivation / potassium ion homeostasis / intracellular sodium ion homeostasis / regulation of urine volume / endoplasmic reticulum organization / heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules / IgG binding / extrinsic component of membrane / ciliary membrane / leukocyte cell-cell adhesion / cellular response to unfolded protein / multicellular organismal response to stress / cellular defense response / renal water homeostasis / side of membrane / tumor necrosis factor-mediated signaling pathway / ERAD pathway / : / RNA splicing / apoptotic signaling pathway / regulation of blood pressure / lipid metabolic process / autophagy / Golgi lumen / intracellular calcium ion homeostasis / spindle pole / defense response to Gram-negative bacterium / basolateral plasma membrane / response to lipopolysaccharide / cilium / apical plasma membrane / inflammatory response / response to xenobiotic stimulus / negative regulation of cell population proliferation / calcium ion binding / cell surface / endoplasmic reticulum / extracellular space / extracellular exosome / 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: 3.5 Å | |||||||||||||||
![]() | Stanisich, J.J. / Zyla, D. / Afanasyev, P. / Xu, J. / Pilhofer, M. / Boeringer, D. / Glockshuber, R. | |||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: The cryo-EM structure of the human uromodulin filament core reveals a unique assembly mechanism. 著者: Jessica J Stanisich / Dawid S Zyla / Pavel Afanasyev / Jingwei Xu / Anne Kipp / Eric Olinger / Olivier Devuyst / Martin Pilhofer / Daniel Boehringer / Rudi Glockshuber / ![]() ![]() ![]() 要旨: The glycoprotein uromodulin (UMOD) is the most abundant protein in human urine and forms filamentous homopolymers that encapsulate and aggregate uropathogens, promoting pathogen clearance by urine ...The glycoprotein uromodulin (UMOD) is the most abundant protein in human urine and forms filamentous homopolymers that encapsulate and aggregate uropathogens, promoting pathogen clearance by urine excretion. Despite its critical role in the innate immune response against urinary tract infections, the structural basis and mechanism of UMOD polymerization remained unknown. Here, we present the cryo-EM structure of the UMOD filament core at 3.5 Å resolution, comprised of the bipartite zona pellucida (ZP) module in a helical arrangement with a rise of ~65 Å and a twist of ~180°. The immunoglobulin-like ZPN and ZPC subdomains of each monomer are separated by a long linker that interacts with the preceding ZPC and following ZPN subdomains by β-sheet complementation. The unique filament architecture suggests an assembly mechanism in which subunit incorporation could be synchronized with proteolytic cleavage of the C-terminal pro-peptide that anchors assembly-incompetent UMOD precursors to the membrane. | |||||||||||||||
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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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PDBx/mmCIF形式 | ![]() | 77.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 46.4 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
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-関連構造データ
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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: 69821.680 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #2: 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 | #3: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | 研究の焦点であるリガンドがあるか | N | 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: FILAMENT / 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: Native human uromodulin filament core / タイプ: COMPLEX 詳細: Native uromodulin was purified from healthy human urine. Entity ID: #1 / 由来: NATURAL |
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分子量 | 値: 1.28 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: 8.2 |
緩衝液成分 | 濃度: 0.5 mM / 名称: Ethylenediaminetetraacetic acid / 式: EDTA |
試料 | 濃度: 1.58 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: individual, isolated fibers |
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 400 divisions/in. / グリッドのタイプ: Homemade |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE-PROPANE / 湿度: 95 % / 凍結前の試料温度: 282 K 詳細: 3.5 ul sample, 30 s wait time, 0.5 s drain time, 13.5 s blotting from the back |
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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 / 倍率(公称値): 130000 X / 最大 デフォーカス(公称値): 3300 nm / 最小 デフォーカス(公称値): 800 nm / 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 | 平均露光時間: 6 sec. / 電子線照射量: 45 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) 撮影したグリッド数: 2 / 実像数: 9543 / 詳細: Data was joined from two sessions |
画像スキャン | 横: 3838 / 縦: 3710 / 動画フレーム数/画像: 40 |
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解析
EMソフトウェア |
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画像処理 | 詳細: Motion correction with dose-weighting | ||||||||||||||||||||||||||||||||||||||||
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: 1310000 詳細: Autopicking based on the 2D classes from manually chosen filaments | ||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 145000 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | B value: 49.9714 / プロトコル: RIGID BODY FIT / 空間: REAL / Target criteria: Correlation coefficient | ||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 4WRN PDB chain-ID: A / Accession code: 4WRN / Pdb chain residue range: 400-710 / Source name: PDB / タイプ: experimental model |