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-基本情報
登録情報 | データベース: PDB / ID: 7zc9 | ||||||||||||
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タイトル | Human Pikachurin/EGFLAM C-terminal Laminin-G domain (LG3) | ||||||||||||
要素 | Pikachurin | ||||||||||||
キーワード | SIGNALING PROTEIN / Bipolar cells / GPR179 ligand / Proteoglycan / Synapse / Signalosome | ||||||||||||
機能・相同性 | 機能・相同性情報 interstitial matrix / photoreceptor ribbon synapse / glycosaminoglycan binding / positive regulation of cell-substrate adhesion / presynaptic active zone / basement membrane / synaptic cleft / extracellular matrix organization / cell projection / calcium ion binding 類似検索 - 分子機能 | ||||||||||||
生物種 | Homo sapiens (ヒト) | ||||||||||||
手法 | X線回折 / シンクロトロン / 分子置換 / 解像度: 2.1 Å | ||||||||||||
データ登録者 | Pantalone, S. / Forneris, F. | ||||||||||||
資金援助 | スイス, 米国, イタリア, 3件
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引用 | ジャーナル: Sci Signal / 年: 2023 タイトル: Structure of the photoreceptor synaptic assembly of the extracellular matrix protein pikachurin with the orphan receptor GPR179. 著者: Dipak N Patil / Serena Pantalone / Yan Cao / Thibaut Laboute / Scott J Novick / Shikha Singh / Simone Savino / Silvia Faravelli / Francesca Magnani / Patrick R Griffin / Appu K Singh / ...著者: Dipak N Patil / Serena Pantalone / Yan Cao / Thibaut Laboute / Scott J Novick / Shikha Singh / Simone Savino / Silvia Faravelli / Francesca Magnani / Patrick R Griffin / Appu K Singh / Federico Forneris / Kirill A Martemyanov / 要旨: Precise synapse formation is essential for normal functioning of the nervous system. Retinal photoreceptors establish selective contacts with bipolar cells, aligning the neurotransmitter release ...Precise synapse formation is essential for normal functioning of the nervous system. Retinal photoreceptors establish selective contacts with bipolar cells, aligning the neurotransmitter release apparatus with postsynaptic signaling cascades. This involves transsynaptic assembly between the dystroglycan-dystrophin complex on the photoreceptor and the orphan receptor GPR179 on the bipolar cell, which is mediated by the extracellular matrix protein pikachurin (also known as EGFLAM). This complex plays a critical role in the synaptic organization of photoreceptors and signal transmission, and mutations affecting its components cause blinding disorders in humans. Here, we investigated the structural organization and molecular mechanisms by which pikachurin orchestrates transsynaptic assembly and solved structures of the human pikachurin domains by x-ray crystallography and of the GPR179-pikachurin complex by single-particle, cryo-electron microscopy. The structures reveal molecular recognition principles of pikachurin by the Cache domains of GPR179 and show how the interaction is involved in the transsynaptic alignment of the signaling machinery. Together, these data provide a structural basis for understanding the synaptic organization of photoreceptors and ocular pathology. | ||||||||||||
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 | 7zc9.cif.gz | 204.4 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7zc9.ent.gz | 135.5 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7zc9.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 | 7zc9_validation.pdf.gz | 473.5 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7zc9_full_validation.pdf.gz | 474.8 KB | 表示 | |
XML形式データ | 7zc9_validation.xml.gz | 17.6 KB | 表示 | |
CIF形式データ | 7zc9_validation.cif.gz | 24 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/zc/7zc9 ftp://data.pdbj.org/pub/pdb/validation_reports/zc/7zc9 | HTTPS FTP |
-関連構造データ
-リンク
-集合体
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非結晶学的対称性 (NCS) | NCSドメイン:
NCSドメイン領域: Ens-ID: ens_1
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