+データを開く
-基本情報
登録情報 | データベース: SASBDB / ID: SASDEE6 |
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試料 | Proliferating cell nuclear antigen - SUMOPCNA - Split Fusion Trimer
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機能・相同性 | 機能・相同性情報 Mismatch repair (MMR) directed by MSH2:MSH6 (MutSalpha) / meiotic mismatch repair / Processive synthesis on the lagging strand / Removal of the Flap Intermediate / E3 ubiquitin ligases ubiquitinate target proteins / Translesion Synthesis by POLH / Polymerase switching / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI ...Mismatch repair (MMR) directed by MSH2:MSH6 (MutSalpha) / meiotic mismatch repair / Processive synthesis on the lagging strand / Removal of the Flap Intermediate / E3 ubiquitin ligases ubiquitinate target proteins / Translesion Synthesis by POLH / Polymerase switching / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI / SUMOylation of DNA replication proteins / positive regulation of DNA metabolic process / maintenance of DNA trinucleotide repeats / PCNA complex / establishment of mitotic sister chromatid cohesion / Termination of translesion DNA synthesis / lagging strand elongation / postreplication repair / silent mating-type cassette heterochromatin formation / mitotic sister chromatid cohesion / error-free translesion synthesis / DNA polymerase processivity factor activity / leading strand elongation / Dual incision in TC-NER / subtelomeric heterochromatin formation / DNAミスマッチ修復 / DNA修復 / positive regulation of DNA repair / DNA複製 / positive regulation of DNA replication / nucleotide-excision repair / mitotic cell cycle / chromosome, telomeric region / DNA binding / identical protein binding / 細胞核 類似検索 - 分子機能 |
生物種 | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (パン酵母) |
引用 | ジャーナル: J Mol Biol / 年: 2018 タイトル: Conformational Flexibility of Ubiquitin-Modified and SUMO-Modified PCNA Shown by Full-Ensemble Hybrid Methods. 著者: Kyle T Powers / Emily D Lavering / M Todd Washington / 要旨: Ubiquitin-modified proliferating cell nuclear antigen (PCNA) and small ubiquitin-like modifier (SUMO)-modified PCNA regulate DNA damage tolerance pathways. X-ray crystal structures of these proteins ...Ubiquitin-modified proliferating cell nuclear antigen (PCNA) and small ubiquitin-like modifier (SUMO)-modified PCNA regulate DNA damage tolerance pathways. X-ray crystal structures of these proteins suggested that they do not have much conformational flexibility because the modifiers have preferred binding sites on the surface of PCNA. By contrast, small-angle X-ray scattering analyses of these proteins suggested that they have different degrees of conformational flexibility, with SUMO-modified PCNA being more flexible. These conclusions were based on minimal-ensemble hybrid approaches, which produce unrealistic models by representing flexible proteins with only a few static structures. To overcome the limitations of minimal-ensemble hybrid approaches and to determine the degree of conformational flexibility of ubiquitin-modified PCNA and SUMO-modified PCNA, we utilized a novel full-ensemble hybrid approach. We carried out molecular simulations and small-angle X-ray scattering analyses of both proteins and obtained outstanding agreement between the full ensembles generated by the simulations and the experimental data. We found that both proteins have a high degree of conformational flexibility. The modifiers occupy many positions around the back and side of the PCNA ring. Moreover, we found no preferred ubiquitin-binding or SUMO-binding sites on PCNA. This conformational flexibility likely facilitates the recognition of downstream effector proteins and the formation of PCNA tool belts. |
登録者 |
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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
-モデル
モデル #2533 | タイプ: other / コメント: One representative PDB from the simulation. / カイ2乗値: 2.581 Omokage検索でこの集合体の類似形状データを探す (詳細) |
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-試料
試料 | 名称: Proliferating cell nuclear antigen - SUMOPCNA - Split Fusion Trimer 試料濃度: 32.5 mg/ml |
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バッファ | 名称: 20 mM Tris, 150 mM NaCl, 5% glycerol, 1 mM TCEP / pH: 7.5 / コメント: 22C |
要素 #1329 | 名称: PCNA増殖細胞核抗原 / タイプ: protein 記述: Proliferating cell nuclear antigen増殖細胞核抗原 分子量: 41.798 / 分子数: 3 由来: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) 参照: UniProt: P15873 配列: MGSSHHHHHH SQDPMSDSEV NQEAKPEVKP EVKPETHINL KVSDGSSEIF FKIKKTTPLR RLMEAFAKRQ GKEMDSLRFL YDGIRIQADQ TPEDLDMEDN DIIEAHREQI GGPGETIKFV ADGDIGSGSV IIKPFVDMEH PETSIKLEMD QPVDLTFGAK YLLDIIKGSS ...配列: MGSSHHHHHH SQDPMSDSEV NQEAKPEVKP EVKPETHINL KVSDGSSEIF FKIKKTTPLR RLMEAFAKRQ GKEMDSLRFL YDGIRIQADQ TPEDLDMEDN DIIEAHREQI GGPGETIKFV ADGDIGSGSV IIKPFVDMEH PETSIKLEMD QPVDLTFGAK YLLDIIKGSS LSDRVGIRLS SEAPALFQFD LKSGFLQFFL APKFNDEEML EAKFEEASLF KRIIDGFKDC VQLVNFQCKE DGIIAQAVDD SRVLLVSLEI GVEAFQEYRC DHPVTLGMDL TSLSKILRCG NNTDTLTLIA DNTPDSIILL FEDTKKDRIA EYSLKLMDID ADFLKIEELQ YDSTLSLPSS EFSKIVRDLS QLSDSINIMI T |
-実験情報
ビーム | 設備名称: Advanced Photon Source (APS), Argonne National Laboratory BioCAT 18ID 地域: Lemont, IL / 国: USA / 線源: X-ray synchrotronシンクロトロン / 波長: 0.1033 Å / スペクトロメータ・検出器間距離: 3.5 mm | ||||||||||||||||||||||||||||||
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検出器 | 名称: Pilatus3 X 1M / Pixsize x: 0.172 mm | ||||||||||||||||||||||||||||||
スキャン | タイトル: Proliferating cell nuclear antigen - SUMOPCNA - Split Fusion Trimer 測定日: 2018年8月6日 / 保管温度: 22 °C / セル温度: 22 °C / 照射時間: 0.5 sec. / フレーム数: 320 / 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 5.0 / ポイント数: 542 /
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結果 | カーブのタイプ: sec /
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