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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 / negative regulation of release of sequestered calcium ion into cytosol / insulin secretion involved in cellular response to glucose stimulus / 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 / negative regulation of release of sequestered calcium ion into cytosol / insulin secretion involved in cellular response to glucose stimulus / 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 / toxic substance binding / T cell proliferation / striated muscle contraction / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / voltage-gated calcium channel activity / calcium channel inhibitor activity / skeletal muscle fiber development / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / Ion homeostasis / release of sequestered calcium ion into cytosol / glutathione metabolic process / calcium channel complex / sarcoplasmic reticulum membrane / cellular response to calcium ion / muscle contraction / sarcoplasmic reticulum / protein maturation / peptidylprolyl isomerase / calcium channel regulator activity / peptidyl-prolyl cis-trans isomerase activity / calcium-mediated signaling / sarcolemma / calcium ion transmembrane transport / calcium channel activity / Stimuli-sensing channels / Z disc / intracellular calcium ion homeostasis / disordered domain specific binding / positive regulation of cytosolic calcium ion concentration / protein refolding / protein homotetramerization / transmembrane transporter binding / calmodulin binding / signaling receptor binding / calcium ion binding / ATP binding / identical protein binding / membrane / 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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