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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: 6vfp | ||||||||||||
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タイトル | Crystal structure of human protocadherin 1 EC1-EC4 | ||||||||||||
![]() | Protocadherin-1 | ||||||||||||
![]() | CELL ADHESION / cadherin extracellular region / non-clustered delta1 family protocadherin / homophilic adhesion/recognition calcium-dependent adhesion molecule | ||||||||||||
機能・相同性 | ![]() homophilic cell adhesion via plasma membrane adhesion molecules / cell junction / cell-cell junction / nervous system development / cell-cell signaling / cell adhesion / intracellular membrane-bounded organelle / calcium ion binding / nucleolus / nucleoplasm / plasma membrane 類似検索 - 分子機能 | ||||||||||||
生物種 | ![]() | ||||||||||||
手法 | ![]() ![]() ![]() | ||||||||||||
![]() | Brasch, J. / Harrison, O.J. / Shapiro, L. | ||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Family-wide Structural and Biophysical Analysis of Binding Interactions among Non-clustered δ-Protocadherins. 著者: Oliver J Harrison / Julia Brasch / Phinikoula S Katsamba / Goran Ahlsen / Alex J Noble / Hanbin Dan / Rosemary V Sampogna / Clinton S Potter / Bridget Carragher / Barry Honig / Lawrence Shapiro / ![]() 要旨: Non-clustered δ1- and δ2-protocadherins, close relatives of clustered protocadherins, function in cell adhesion and motility and play essential roles in neural patterning. To understand the ...Non-clustered δ1- and δ2-protocadherins, close relatives of clustered protocadherins, function in cell adhesion and motility and play essential roles in neural patterning. To understand the molecular interactions underlying these functions, we used solution biophysics to characterize binding of δ1- and δ2-protocadherins, determined crystal structures of ectodomain complexes from each family, and assessed ectodomain assembly in reconstituted intermembrane junctions by cryoelectron tomography (cryo-ET). Homophilic trans (cell-cell) interactions were preferred for all δ-protocadherins, with additional weaker heterophilic interactions observed exclusively within each subfamily. As expected, δ1- and δ2-protocadherin trans dimers formed through antiparallel EC1-EC4 interfaces, like clustered protocadherins. However, no ectodomain-mediated cis (same-cell) interactions were detectable in solution; consistent with this, cryo-ET of reconstituted junctions revealed dense assemblies lacking the characteristic order observed for clustered protocadherins. Our results define non-clustered protocadherin binding properties and their structural basis, providing a foundation for interpreting their functional roles in neural patterning. | ||||||||||||
履歴 |
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構造の表示
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 | ![]() | 203.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 133.1 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-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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1 | ![]()
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単位格子 |
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Components on special symmetry positions |
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要素
#1: タンパク質 | 分子量: 48914.965 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() | ||||||
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#2: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | ||||||
#3: 糖 | ChemComp-NAG / | ||||||
#4: 化合物 | ChemComp-CA / #5: 水 | ChemComp-HOH / | 研究の焦点であるリガンドがあるか | N | Has protein modification | Y | |
-実験情報
-実験
実験 | 手法: ![]() |
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試料調製
結晶 | マシュー密度: 4.99 Å3/Da / 溶媒含有率: 75.34 % |
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結晶化 | 温度: 296 K / 手法: 蒸気拡散法, ハンギングドロップ法 / pH: 8.5 詳細: 8.5% (w/v) PEG 4000, 20% (v/v) glycerol, 0.1M tris-bicine buffer pH8.5, 0.02 M D-glucose, 0.02 M D-mannose, 0.02 M D-galactose, 0.02 M L-fucose, 0.02 M D-xylose, 0.02 M N-acetyl-D-glucosamine |
-データ収集
回折 | 平均測定温度: 100 K / Serial crystal experiment: N |
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放射光源 | 由来: ![]() ![]() ![]() |
検出器 | タイプ: DECTRIS PILATUS 6M-F / 検出器: PIXEL / 日付: 2016年4月25日 |
放射 | プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
放射波長 | 波長: 0.9791 Å / 相対比: 1 |
反射 | 解像度: 3.2→40 Å / Num. obs: 16684 / % possible obs: 100 % / 冗長度: 18.3 % / Biso Wilson estimate: 115.50962728 Å2 / CC1/2: 1 / Rmerge(I) obs: 0.12 / Rpim(I) all: 0.028 / Rrim(I) all: 0.12 / Net I/σ(I): 15.9 |
反射 シェル | 解像度: 3.2→3.42 Å / 冗長度: 19.1 % / Rmerge(I) obs: 1.685 / Mean I/σ(I) obs: 2.1 / Num. unique obs: 2938 / CC1/2: 0.81 / Rpim(I) all: 0.394 / Rrim(I) all: 1.73 / % possible all: 100 |
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解析
ソフトウェア |
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精密化 | 構造決定の手法: ![]() 開始モデル: 5DZQ, 4ZPL 解像度: 3.2→19.87 Å / SU ML: 0.5382 / 交差検証法: FREE R-VALUE / σ(F): 1.34 / 位相誤差: 32.55
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溶媒の処理 | 減衰半径: 0.8 Å / VDWプローブ半径: 1.1 Å | |||||||||||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 144.64 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: LAST / 解像度: 3.2→19.87 Å
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拘束条件 |
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LS精密化 シェル |
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