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基本情報
登録情報 | データベース: PDB / ID: 1fp5 | ||||||
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タイトル | CRYSTAL STRUCTURE ANALYSIS OF THE HUMAN IGE-FC CEPSILON3-CEPSILON4 FRAGMENT. | ||||||
![]() | IGE HEAVY CHAIN EPSILON-1 | ||||||
![]() | IMMUNE SYSTEM / Antibody / Fc / Immunoglobin fold / "closed" IgE-Fc | ||||||
機能・相同性 | ![]() adaptive immune memory response / primary adaptive immune response / IgE B cell receptor complex / B cell antigen processing and presentation / type I hypersensitivity / Fc receptor-mediated immune complex endocytosis / eosinophil degranulation / IgE immunoglobulin complex / macrophage activation / Fc epsilon receptor (FCERI) signaling ...adaptive immune memory response / primary adaptive immune response / IgE B cell receptor complex / B cell antigen processing and presentation / type I hypersensitivity / Fc receptor-mediated immune complex endocytosis / eosinophil degranulation / IgE immunoglobulin complex / macrophage activation / Fc epsilon receptor (FCERI) signaling / antibody-dependent cellular cytotoxicity / type 2 immune response / immunoglobulin receptor binding / immunoglobulin complex, circulating / mast cell degranulation / B cell proliferation / macrophage differentiation / Role of LAT2/NTAL/LAB on calcium mobilization / complement activation, classical pathway / antigen binding / FCERI mediated Ca+2 mobilization / B cell receptor signaling pathway / FCERI mediated MAPK activation / FCERI mediated NF-kB activation / antibacterial humoral response / Interleukin-4 and Interleukin-13 signaling / adaptive immune response / immune response / inflammatory response / extracellular space / extracellular region / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
手法 | ![]() ![]() ![]() | ||||||
![]() | Wurzburg, B.A. / Garman, S.C. / Jardetzky, T.S. | ||||||
![]() | ![]() タイトル: Structure of the human IgE-Fc C epsilon 3-C epsilon 4 reveals conformational flexibility in the antibody effector domains. 著者: Wurzburg, B.A. / Garman, S.C. / Jardetzky, T.S. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 57.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 41.8 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 427.6 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 435.1 KB | 表示 | |
XML形式データ | ![]() | 13.9 KB | 表示 | |
CIF形式データ | ![]() | 18.6 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-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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詳細 | The asymmetric unit contains one chain of the Fc homodimer. The biological dimer can be generated from chain A. |
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要素
#1: 抗体 | 分子量: 24821.018 Da / 分子数: 1 / 断片: CEPSILON3-CEPSILON4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#2: 水 | ChemComp-HOH / |
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: 2.64 Å3/Da / 溶媒含有率: 45.5 % | ||||||||||||||||||||||||||||||
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結晶化 | 温度: 295 K / 手法: 蒸気拡散法, ハンギングドロップ法 / pH: 4.6 詳細: PEG 4000, sodium acetate pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 295K | ||||||||||||||||||||||||||||||
結晶化 | *PLUS 温度: 22 ℃ / pH: 8 | ||||||||||||||||||||||||||||||
溶液の組成 | *PLUS
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-データ収集
回折 | 平均測定温度: 113 K |
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放射光源 | 由来: ![]() ![]() ![]() |
検出器 | タイプ: MARRESEARCH / 検出器: CCD / 日付: 1999年8月7日 / 詳細: 1mm x 1mm slits, 25 m from crystal |
放射 | モノクロメーター: Si (111), cryogenically-cooled / 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: 0.906 Å / 相対比: 1 |
反射 | 解像度: 2.3→30 Å / Num. all: 12322 / Num. obs: 12322 / % possible obs: 99.8 % / 冗長度: 8.7 % / Biso Wilson estimate: 49.2 Å2 / Rmerge(I) obs: 0.054 / Net I/σ(I): 33.9 |
反射 シェル | 解像度: 2.3→2.38 Å / 冗長度: 7.1 % / Rmerge(I) obs: 0.257 / Mean I/σ(I) obs: 10.6 / Num. unique all: 1208 / % possible all: 100 |
反射 | *PLUS 最高解像度: 2.3 Å / Num. obs: 12340 / Num. measured all: 106855 |
反射 シェル | *PLUS % possible obs: 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: ![]() 詳細: Density for the Cepsilon4 AB loop was particularly poor, especially from residues 453-457, and this region of the loop was built sterically. The B-factors were generally higher and the ...詳細: Density for the Cepsilon4 AB loop was particularly poor, especially from residues 453-457, and this region of the loop was built sterically. The B-factors were generally higher and the electron density generally poorer for the BC- DE- and FG-loops of the Cepsilon3 domain that bind to the high affinity receptor. The residue K435 sits at the interdomain interface and the side chain may partially fill a gap in the space between the domains. This is not obvious from the structure, however, as all of the atoms could not be modeled for this residue. The structure contains two cis-Prolines : P471 and P533 There are N-linked carbohydrates attached to the protein at residues N371 and N394. Some electron density is observed for the carbohydrate attached to N394, but no electron density is observed for the carbohydrate attached to N371. Carbohydrates were not modeled in the structure and so they are not present in the PDB file.
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原子変位パラメータ | Biso mean: 51.9 Å2
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精密化ステップ | サイクル: LAST / 解像度: 2.3→30 Å
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拘束条件 |
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ソフトウェア | *PLUS 名称: CNS / 分類: refinement | ||||||||||||||||||||||||||||||||||||
精密化 | *PLUS 最低解像度: 30 Å / Num. reflection obs: 11053 / σ(F): 0 / % reflection Rfree: 10.3 % / Rfactor obs: 0.242 / Rfactor Rfree: 0.27 | ||||||||||||||||||||||||||||||||||||
溶媒の処理 | *PLUS | ||||||||||||||||||||||||||||||||||||
原子変位パラメータ | *PLUS Biso mean: 51.9 Å2 | ||||||||||||||||||||||||||||||||||||
拘束条件 | *PLUS
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