+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 1iga | ||||||
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タイトル | MODEL OF HUMAN IGA1 DETERMINED BY SOLUTION SCATTERING CURVE-FITTING AND HOMOLOGY MODELLING | ||||||
要素 | (IGA1) x 2 | ||||||
キーワード | IMMUNOGLOBULIN / IGA1 | ||||||
機能・相同性 | 機能・相同性情報 secretory dimeric IgA immunoglobulin complex / monomeric IgA immunoglobulin complex / secretory IgA immunoglobulin complex / IgA immunoglobulin complex / glomerular filtration / IgG immunoglobulin complex / immunoglobulin complex, circulating / positive regulation of respiratory burst / Scavenging of heme from plasma / complement activation, classical pathway ...secretory dimeric IgA immunoglobulin complex / monomeric IgA immunoglobulin complex / secretory IgA immunoglobulin complex / IgA immunoglobulin complex / glomerular filtration / IgG immunoglobulin complex / immunoglobulin complex, circulating / positive regulation of respiratory burst / Scavenging of heme from plasma / complement activation, classical pathway / antigen binding / Cell surface interactions at the vascular wall / B cell receptor signaling pathway / antibacterial humoral response / blood microparticle / adaptive immune response / immune response / extracellular space / extracellular exosome / extracellular region / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) | ||||||
手法 | 溶液散乱 | ||||||
データ登録者 | Boehm, M.K. / Woof, J.M. / Kerr, M.A. / Perkins, S.J. | ||||||
引用 | ジャーナル: J.Mol.Biol. / 年: 1999 タイトル: The Fab and Fc fragments of IgA1 exhibit a different arrangement from that in IgG: a study by X-ray and neutron solution scattering and homology modelling. 著者: Boehm, M.K. / Woof, J.M. / Kerr, M.A. / Perkins, S.J. #1: ジャーナル: Int.J.Biol.Macromol. / 年: 1998 タイトル: Molecular Structures from Low Angle X-Ray and Neutron Scattering Studies 著者: Perkins, S.J. / Ashton, A.W. / Boehm, M.K. / Chamberlain, D. #2: ジャーナル: Immunol.Rev. / 年: 1998 タイトル: Analogy and Solution Scattering Modelling: New Structural Strategies for the Multidomain Proteins of Complement, Cartilage and the Immunoglobulin Superfamily 著者: Perkins, S.J. / Ullman, C.G. / Brissett, N.C. / Chamberlain, D. / Boehm, M.K. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 1iga.cif.gz | 51.6 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb1iga.ent.gz | 29.5 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 1iga.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
文書・要旨 | 1iga_validation.pdf.gz | 290.2 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 1iga_full_validation.pdf.gz | 290.2 KB | 表示 | |
XML形式データ | 1iga_validation.xml.gz | 876 B | 表示 | |
CIF形式データ | 1iga_validation.cif.gz | 12.8 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ig/1iga ftp://data.pdbj.org/pub/pdb/validation_reports/ig/1iga | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
#1: 抗体 | 分子量: 51068.383 Da / 分子数: 2 / 断片: CHAINS A AND B, HEAVY, CHAINS C AND D, LIGHT / 由来タイプ: 天然 / 詳細: SEE PRIMARY REFERENCE FOR MORE DETAILS / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P01876 #2: 抗体 | 分子量: 23216.770 Da / 分子数: 2 / 断片: CHAINS A AND B, HEAVY, CHAINS C AND D, LIGHT / 由来タイプ: 天然 / 詳細: SEE PRIMARY REFERENCE FOR MORE DETAILS / 由来: (天然) Homo sapiens (ヒト) / 参照: EMBL: X95747 |
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-実験情報
-実験
実験 | 手法: 溶液散乱 |
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-試料調製
結晶化 | *PLUS 手法: other / 詳細: not appplicable |
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-データ収集
Soln scatter | Data analysis software list: SCTPL7, GNOM / Num. of time frames: 1 / Source class: Y
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-解析
ソフトウェア | 名称: DISCOVER / バージョン: 3 / 分類: 精密化 | ||||||||||||
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精密化ステップ | サイクル: LAST
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Soln scatter model | 手法: SCATTERING FITTING, ENERGY MINIMIZATION 詳細: THE MODEL OF HUMAN IGA1 WAS BASED ON SEVERAL IMMUNOGLOBULIN CRYSTAL STRUCTURES FROM THE PDB. AN IGA1 MONOMER CONTAINS TWELVE DOMAINS ON TWO FOUR-DOMAIN HEAVY CHAINS AND TWO TWO-DOMAIN LIGHT ...詳細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um. of conformers submitted: 1 / 代表コンフォーマー: 1 / Software list: INSIGHT II, DISCOVERY 2.9.7, BIOSYM |