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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 9zd2 | |||||||||||||||||||||||||||
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| タイトル | C1 local refinement of aquaporin 1 bound to endogenous human stomatin | |||||||||||||||||||||||||||
要素 |
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キーワード | MEMBRANE PROTEIN / Oligomer / C8 symmetry / scaffold | |||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報metanephric descending thin limb development / metanephric proximal straight tubule development / metanephric proximal convoluted tubule segment 2 development / metanephric glomerulus vasculature development / nitric oxide transmembrane transporter activity / hydrogen peroxide channel activity / lipid digestion / renal water transport / corticotropin secretion / cellular response to salt stress ...metanephric descending thin limb development / metanephric proximal straight tubule development / metanephric proximal convoluted tubule segment 2 development / metanephric glomerulus vasculature development / nitric oxide transmembrane transporter activity / hydrogen peroxide channel activity / lipid digestion / renal water transport / corticotropin secretion / cellular response to salt stress / positive regulation of viral process / carbon dioxide transmembrane transport / carbon dioxide transmembrane transporter activity / glycerol transmembrane transporter activity / secretory granule organization / water transmembrane transporter activity / cerebrospinal fluid secretion / positive regulation of saliva secretion / Passive transport by Aquaporins / pancreatic juice secretion / establishment or maintenance of actin cytoskeleton polarity / lateral ventricle development / glycerol transmembrane transport / cellular response to mercury ion / intracellular water homeostasis / intracellularly cGMP-activated cation channel activity / renal water absorption / potassium ion transmembrane transporter activity / transepithelial water transport / water channel activity / ankyrin-1 complex / host-mediated activation of viral genome replication / ammonium transmembrane transport / ammonium channel activity / glomerular filtration / camera-type eye morphogenesis / multicellular organismal-level water homeostasis / fibroblast migration / water transport / cellular homeostasis / cellular hyperosmotic response / regulation of monoatomic ion transmembrane transport / RNA polymerase binding / cell volume homeostasis / hyperosmotic response / positive regulation of fibroblast migration / odontogenesis / nitric oxide transport / azurophil granule membrane / RHOB GTPase cycle / RHOC GTPase cycle / RHOJ GTPase cycle / RHOQ GTPase cycle / ion channel inhibitor activity / CDC42 GTPase cycle / tertiary granule membrane / brush border / RHOH GTPase cycle / RHOA GTPase cycle / cellular response to dexamethasone stimulus / positive regulation of protein targeting to membrane / potassium channel activity / transmembrane transporter activity / specific granule membrane / renal water homeostasis / ephrin receptor binding / cellular response to retinoic acid / cellular response to nitric oxide / sensory perception of pain / establishment of localization in cell / basal plasma membrane / cellular response to cAMP / cellular response to copper ion / Developmental Lineage of Pancreatic Ductal Cells / carbon dioxide transport / potassium ion transport / wound healing / brush border membrane / Erythrocytes take up oxygen and release carbon dioxide / Erythrocytes take up carbon dioxide and release oxygen / cellular response to mechanical stimulus / sarcolemma / positive regulation of fibroblast proliferation / Stimuli-sensing channels / cellular response to hydrogen peroxide / positive regulation of angiogenesis / apical part of cell / cellular response to UV / melanosome / Vasopressin regulates renal water homeostasis via Aquaporins / blood microparticle / nuclear membrane / cellular response to hypoxia / vesicle / defense response to Gram-negative bacterium / basolateral plasma membrane / cytoskeleton / apical plasma membrane / membrane raft / axon 類似検索 - 分子機能 | |||||||||||||||||||||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||||||||||||||||||||
| 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: 3.1 Å | |||||||||||||||||||||||||||
データ登録者 | Vallese, F. / Clarke, O.B. | |||||||||||||||||||||||||||
| 資金援助 | 1件
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引用 | ジャーナル: Sci Adv / 年: 2026タイトル: Stomatin encapsulates aquaporin-1 and urea transporter-B in the erythrocyte membrane. 著者: Francesca Vallese / Huan Li / Lucia Barazzuol / Tito Calì / Oliver B Clarke / ![]() 要旨: Stomatin is a ubiquitous and highly expressed protein in erythrocytes, which associates with cholesterol-rich microdomains in the plasma membrane and is known to regulate the activity of multiple ion ...Stomatin is a ubiquitous and highly expressed protein in erythrocytes, which associates with cholesterol-rich microdomains in the plasma membrane and is known to regulate the activity of multiple ion channels and transporters, but the structural basis of association with stomatin targets remains unknown. Here, we describe high-resolution structures of multiple stomatin complexes with endogenous binding partners isolated from human erythrocyte membranes, revealing that stomatin specifically associates with two membrane proteins involved in water transport and cell volume regulation, aquaporin-1 and the urea transporter SLC14A1. Together, our results reveal the structural basis of stomatin oligomerization, membrane association, and target recruitment and identify a putative role for stomatin in the regulation of osmotic balance in the erythrocyte. | |||||||||||||||||||||||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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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 | 9zd2.cif.gz | 366.3 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9zd2.ent.gz | 300.9 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9zd2.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/zd/9zd2 ftp://data.pdbj.org/pub/pdb/validation_reports/zd/9zd2 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 74049MC ![]() 9z7uC ![]() 9zczC ![]() 9zd0C ![]() 9zd5C 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 F&H 検索 |
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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: 25996.072 Da / 分子数: 4 / 由来タイプ: 天然 / 詳細: Aquaporin-1 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P29972#2: タンパク質 | 分子量: 21128.730 Da / 分子数: 5 / 由来タイプ: 天然 詳細: Stomatin region in contact with AQP-1,Stomatin region in contact with AQP-1 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P27105#3: 化合物 | ChemComp-PLM / #4: 化合物 | ChemComp-CLR / 研究の焦点であるリガンドがあるか | Y | 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: 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: The stomatin region in contact with two AQP-1 monomers タイプ: COMPLEX / Entity ID: #1-#2 / 由来: NATURAL |
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| 分子量 | 実験値: NO |
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 7.4 |
| 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: TFS KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 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): 500 nm / Cs: 2.7 mm |
| 撮影 | 電子線照射量: 58 e/Å2 / フィルム・検出器のモデル: GATAN K3 (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 | ||||||||||||||||||||||||
| 対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 135000 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 拘束条件 |
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万見について




Homo sapiens (ヒト)
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FIELD EMISSION GUN