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-基本情報
登録情報 | データベース: SASBDB / ID: SASDBL6 |
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試料 | Truncated construct of human p23 (1-117)
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機能・相同性 | 機能・相同性情報 lung saccule development / prostaglandin-E synthase / prostaglandin-E synthase activity / telomerase activity / intracellular glucocorticoid receptor signaling pathway / Aryl hydrocarbon receptor signalling / Synthesis of Prostaglandins (PG) and Thromboxanes (TX) / cyclooxygenase pathway / telomerase holoenzyme complex / glycogen biosynthetic process ...lung saccule development / prostaglandin-E synthase / prostaglandin-E synthase activity / telomerase activity / intracellular glucocorticoid receptor signaling pathway / Aryl hydrocarbon receptor signalling / Synthesis of Prostaglandins (PG) and Thromboxanes (TX) / cyclooxygenase pathway / telomerase holoenzyme complex / glycogen biosynthetic process / protein folding chaperone complex / prostaglandin biosynthetic process / skin development / telomerase holoenzyme complex assembly / chaperone cofactor-dependent protein refolding / telomere maintenance via telomerase / HSF1 activation / chaperone-mediated protein complex assembly / Attenuation phase / DNA polymerase binding / positive regulation of phosphorylation / positive regulation of telomerase activity / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / telomere maintenance / ESR-mediated signaling / Hsp90 protein binding / unfolded protein binding / フォールディング / fibroblast proliferation / protein-folding chaperone binding / Estrogen-dependent gene expression / Potential therapeutics for SARS / chromosome, telomeric region / protein stabilization / シグナル伝達 / protein-containing complex / 核質 / 細胞核 / 細胞質基質 類似検索 - 分子機能 |
生物種 | Homo sapiens (ヒト) |
引用 | ジャーナル: Arch Biochem Biophys / 年: 2015 タイトル: The C-terminal region of the human p23 chaperone modulates its structure and function. 著者: Thiago V Seraphim / Lisandra M Gava / David Z Mokry / Thiago C Cagliari / Leandro R S Barbosa / Carlos H I Ramos / Júlio C Borges / 要旨: The p23 protein is a chaperone widely involved in protein homeostasis, well known as an Hsp90 co-chaperone since it also controls the Hsp90 chaperone cycle. Human p23 includes a β-sheet domain, ...The p23 protein is a chaperone widely involved in protein homeostasis, well known as an Hsp90 co-chaperone since it also controls the Hsp90 chaperone cycle. Human p23 includes a β-sheet domain, responsible for interacting with Hsp90; and a charged C-terminal region whose function is not clear, but seems to be natively unfolded. p23 can undergo caspase-dependent proteolytic cleavage to form p19 (p231-142), which is involved in apoptosis, while p23 has anti-apoptotic activity. To better elucidate the function of the human p23 C-terminal region, we studied comparatively the full-length human p23 and three C-terminal truncation mutants: p23₁₋₁₁₇; p23₁₋₁₃₁ and p23₁₋₁₄₂. Our data indicate that p23 and p19 have distinct characteristics, whereas the other two truncations behave similarly, with some differences to p23 and p19. We found that part of the C-terminal region can fold in an α-helix conformation and slightly contributes to p23 thermal-stability, suggesting that the C-terminal interacts with the β-sheet domain. As a whole, our results suggest that the C-terminal region of p23 is critical for its structure-function relationship. A mechanism where the human p23 C-terminal region behaves as an activation/inhibition module for different p23 activities is proposed. |
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-構造の表示
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-Data source
SASBDBのページ | SASDBL6 |
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-関連構造データ
関連構造データ | C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-外部リンク
「今月の分子」の関連する項目 |
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-モデル
-試料
試料 | 名称: Truncated construct of human p23 (1-117) / 試料濃度: 1.00-2.00 |
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バッファ | 名称: 25 mM Tris-HCl, 100 mM NaCl, 5 mM B-mercaptoethanol / pH: 7.5 |
要素 #407 | 名称: PTGES, Sba1, p23 / タイプ: protein / 記述: Prostaglandin E synthase 3 (1-117) / 分子量: 14.031 / 分子数: 1 / 由来: Homo sapiens / 参照: UniProt: Q15185 配列: GSMQPASAKW YDRRDYVFIE FCVEDSKDVN VNFEKSKLTF SCLGGSDNFK HLNEIDLFHC IDPNDSKHKR TDRSILCCLR KGESGQSWPR LTKERAKLNW LSVDFNNWKD WEDDSDEDM |
-実験情報
ビーム | 設備名称: Brazilian Synchrotron Light Laboratory SAXS1 Beamline 地域: Campinas / 国: Brazil / 線源: X-ray synchrotronシンクロトロン / 波長: 0.1488 Å / スペクトロメータ・検出器間距離: 1 mm | |||||||||||||||||||||||||||||||||
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検出器 | 名称: Pilatus 300K / タイプ: 20Hz | |||||||||||||||||||||||||||||||||
スキャン | タイトル: Truncated construct of human p23 (1-117) / 測定日: 2013年6月21日 / 保管温度: 4 °C / セル温度: 20 °C / 照射時間: 30 sec. / フレーム数: 2 / 単位: 1/A /
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距離分布関数 P(R) | ソフトウェア P(R): GNOM 4.6 / ポイント数: 278 /
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結果 | カーブのタイプ: single_conc コメント: Samples were measured at 1 mg/mL and 2 mg/mL in 1 mm path-length mica cells. All curves were inspected for X-ray damage and aggregation. The experimental molecular weight was determined ...コメント: Samples were measured at 1 mg/mL and 2 mg/mL in 1 mm path-length mica cells. All curves were inspected for X-ray damage and aggregation. The experimental molecular weight was determined by analytical ultracentrifugation.
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