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基本情報
| 登録情報 | データベース: PDB / ID: 8seq | |||||||||
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| タイトル | Cryo-EM Structure of RyR1 + AMP | |||||||||
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キーワード | TRANSPORT PROTEIN / Calcium ion channel / skeletal muscle / nucleotide / homotetramer | |||||||||
| 機能・相同性 | 機能・相同性情報ATP-gated ion channel activity / : / negative regulation of calcium-mediated signaling / negative regulation of insulin secretion involved in cellular response to glucose stimulus / neuronal action potential propagation / insulin secretion involved in cellular response to glucose stimulus / negative regulation of release of sequestered calcium ion into cytosol / terminal cisterna / ryanodine-sensitive calcium-release channel activity / ryanodine receptor complex ...ATP-gated ion channel activity / : / negative regulation of calcium-mediated signaling / negative regulation of insulin secretion involved in cellular response to glucose stimulus / neuronal action potential propagation / insulin secretion involved in cellular response to glucose stimulus / negative regulation of release of sequestered calcium ion into cytosol / terminal cisterna / ryanodine-sensitive calcium-release channel activity / ryanodine receptor complex / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / response to redox state / ossification involved in bone maturation / negative regulation of heart rate / cellular response to caffeine / 'de novo' protein folding / skin development / FK506 binding / organelle membrane / intracellularly gated calcium channel activity / smooth endoplasmic reticulum / outflow tract morphogenesis / glutathione transferase / smooth muscle contraction / glutathione transferase activity / T cell proliferation / toxic substance binding / voltage-gated calcium channel activity / calcium channel inhibitor activity / striated muscle contraction / skeletal muscle fiber development / Ion homeostasis / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / release of sequestered calcium ion into cytosol / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / sarcoplasmic reticulum membrane / calcium channel complex / cellular response to calcium ion / muscle contraction / sarcoplasmic reticulum / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / calcium channel regulator activity / glutathione metabolic process / calcium-mediated signaling / protein maturation / sarcolemma / Stimuli-sensing channels / calcium ion transmembrane transport / calcium channel activity / Z disc / intracellular calcium ion homeostasis / disordered domain specific binding / protein refolding / positive regulation of cytosolic calcium ion concentration / protein homotetramerization / transmembrane transporter binding / calmodulin binding / signaling receptor binding / calcium ion binding / ATP binding / membrane / identical protein binding / cytoplasm 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: 3.4 Å | |||||||||
データ登録者 | Cholak, S. / Saville, J.W. / Zhu, X. / Berezuk, A.M. / Tuttle, K.S. / Haji-Ghassemi, O. / Van Petegem, F. / Subramaniam, S. | |||||||||
| 資金援助 | カナダ, 2件
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引用 | ジャーナル: Structure / 年: 2023タイトル: Allosteric modulation of ryanodine receptor RyR1 by nucleotide derivatives. 著者: Spencer Cholak / James W Saville / Xing Zhu / Alison M Berezuk / Katharine S Tuttle / Omid Haji-Ghassemi / Francisco J Alvarado / Filip Van Petegem / Sriram Subramaniam / ![]() 要旨: The coordinated release of Ca from the sarcoplasmic reticulum (SR) is critical for excitation-contraction coupling. This release is facilitated by ryanodine receptors (RyRs) that are embedded in the ...The coordinated release of Ca from the sarcoplasmic reticulum (SR) is critical for excitation-contraction coupling. This release is facilitated by ryanodine receptors (RyRs) that are embedded in the SR membrane. In skeletal muscle, activity of RyR1 is regulated by metabolites such as ATP, which upon binding increase channel open probability (P). To obtain structural insights into the mechanism of RyR1 priming by ATP, we determined several cryo-EM structures of RyR1 bound individually to ATP-γ-S, ADP, AMP, adenosine, adenine, and cAMP. We demonstrate that adenine and adenosine bind RyR1, but AMP is the smallest ATP derivative capable of inducing long-range (>170 Å) structural rearrangements associated with channel activation, establishing a structural basis for key binding site interactions that are the threshold for triggering quaternary structural changes. Our finding that cAMP also induces these structural changes and results in increased channel opening suggests its potential role as an endogenous modulator of RyR1 conductance. | |||||||||
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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 | 8seq.cif.gz | 4.2 MB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8seq.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 8seq.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/se/8seq ftp://data.pdbj.org/pub/pdb/validation_reports/se/8seq | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 40425MC ![]() 8senC ![]() 8seoC ![]() 8sepC ![]() 8serC ![]() 8sesC ![]() 8setC ![]() 8seuC ![]() 8sevC ![]() 8sewC ![]() 8sexC ![]() 8seyC ![]() 8sezC ![]() 8sf0C 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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集合体
| 登録構造単位 | ![]()
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| 非結晶学的対称性 (NCS) | NCSドメイン:
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万見について




Homo sapiens (ヒト)

カナダ, 2件
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