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基本情報
登録情報 | ![]() | |||||||||
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タイトル | CryoEM structure of Human Mediator subunit MED23 complexed with phosphorylated Elk-1 transcription factor | |||||||||
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![]() | Mediator complex / transcription factor / Med23 / ELK-1 / phosphorylation / GENE REGULATION | |||||||||
機能・相同性 | ![]() positive regulation of T cell extravasation / hippocampal neuron apoptotic process / response to fibroblast growth factor / core mediator complex / mediator complex binding / cellular response to testosterone stimulus / NGF-stimulated transcription / mediator complex / transcription regulator activator activity / Generic Transcription Pathway ...positive regulation of T cell extravasation / hippocampal neuron apoptotic process / response to fibroblast growth factor / core mediator complex / mediator complex binding / cellular response to testosterone stimulus / NGF-stimulated transcription / mediator complex / transcription regulator activator activity / Generic Transcription Pathway / RSV-host interactions / ERK/MAPK targets / response to light stimulus / Estrogen-dependent nuclear events downstream of ESR-membrane signaling / positive regulation of transcription initiation by RNA polymerase II / transcription regulator inhibitor activity / RNA polymerase II preinitiation complex assembly / axon terminus / bioluminescence / liver development / generation of precursor metabolites and energy / positive regulation of transcription elongation by RNA polymerase II / transcription initiation at RNA polymerase II promoter / lung development / mitochondrial membrane / PPARA activates gene expression / cellular response to gamma radiation / Transcriptional regulation of white adipocyte differentiation / HCMV Early Events / sequence-specific double-stranded DNA binding / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / DNA-binding transcription activator activity, RNA polymerase II-specific / gene expression / transcription regulator complex / RNA polymerase II-specific DNA-binding transcription factor binding / response to ethanol / cell differentiation / transcription coactivator activity / DNA-binding transcription factor activity, RNA polymerase II-specific / transcription cis-regulatory region binding / RNA polymerase II cis-regulatory region sequence-specific DNA binding / DNA-binding transcription factor activity / neuronal cell body / dendrite / chromatin binding / positive regulation of gene expression / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II / chromatin / positive regulation of DNA-templated transcription / positive regulation of transcription by RNA polymerase II / nucleoplasm / nucleus 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.98 Å | |||||||||
![]() | Monte D / Verger A / Lens Z / villeret V | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural basis of human Mediator recruitment by the phosphorylated transcription factor Elk-1. 著者: Didier Monté / Zoé Lens / Frédérique Dewitte / Marcus Fislage / Marc Aumercier / Alexis Verger / Vincent Villeret / ![]() ![]() 要旨: One function of Mediator complex subunit MED23 is to mediate transcriptional activation by the phosphorylated transcription factor Elk-1, in response to the Ras-MAPK signaling pathway. Using ...One function of Mediator complex subunit MED23 is to mediate transcriptional activation by the phosphorylated transcription factor Elk-1, in response to the Ras-MAPK signaling pathway. Using cryogenic electron microscopy, we solve a 3.0 Å structure of human MED23 complexed with the phosphorylated activation domain of Elk-1. Elk-1 binds to MED23 via a hydrophobic sequence PSIHFWSTLSP containing one phosphorylated residue (S383), which forms a tight turn around the central Phenylalanine. Binding of Elk-1 induces allosteric changes in MED23 that propagate to the opposite face of the subunit, resulting in the dynamic behavior of a 19-residue segment, which alters the molecular surface of MED23. We design a specific MED23 mutation (G382F) that disrupts Elk--1 binding and consequently impairs Elk-1-dependent serum-induced activation of target genes in the Ras-Raf-MEK-ERK signaling pathway. The structure provides molecular details and insights into a Mediator subunit-transcription factor interface. | |||||||||
履歴 |
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構造の表示
添付画像 |
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ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 57.4 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 17.6 KB 17.6 KB | 表示 表示 | ![]() |
画像 | ![]() | 66 KB | ||
Filedesc metadata | ![]() | 6.8 KB | ||
その他 | ![]() ![]() | 59.4 MB 59.4 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 9f6yMC ![]() 9f76C M: このマップから作成された原子モデル 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 ![]() |
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.17969 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #1
ファイル | emd_50242_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #2
ファイル | emd_50242_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : Complex between human Mediator subunit Med23 and phosphorylated t...
全体 | 名称: Complex between human Mediator subunit Med23 and phosphorylated transcription factor Elk1 |
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要素 |
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-超分子 #1: Complex between human Mediator subunit Med23 and phosphorylated t...
超分子 | 名称: Complex between human Mediator subunit Med23 and phosphorylated transcription factor Elk1 タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() |
-分子 #1: Mediator of RNA polymerase II transcription subunit 23
分子 | 名称: Mediator of RNA polymerase II transcription subunit 23 タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 158.294891 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: METQLQSIFE EVVKTEVIEE AFPGMFMDTP EDEKTKLISC LGAFRQFWGG LSQESHEQCI QWIVKFIHGQ HSPKRISFLY DCLAMAVET GLLPPRLVCE SLINSDTLEW ERTQLWALTF KLVRKIIGGV DYKGVRDLLK VILEKILTIP NTVSSAVVQQ L LAAREVIA ...文字列: METQLQSIFE EVVKTEVIEE AFPGMFMDTP EDEKTKLISC LGAFRQFWGG LSQESHEQCI QWIVKFIHGQ HSPKRISFLY DCLAMAVET GLLPPRLVCE SLINSDTLEW ERTQLWALTF KLVRKIIGGV DYKGVRDLLK VILEKILTIP NTVSSAVVQQ L LAAREVIA YILERNACLL PAYFAVTEIR KLYPEGKLPH WLLGNLVSDF VDTFRPTARI NSICGRCSLL PVVNNSGAIC NS WKLDPAT LRFPLKGLLP YDKDLFEPQT ALLRYVLEQP YSRDMVCNML GLNKQHKQRC PVLEDQLVDL VVYAMERSET EEK FDDGGT SQLLWQHLSS QLIFFVLFQF ASFPHMVLSL HQKLAGRGLI KGRDHLMWVL LQFISGSIQK NALADFLPVM KLFD LLYPE KEYIPVPDIN KPQSTHAFAM TCIWIHLNRK AQNDNSKLQI PIPHSLRLHH EFLQQSLRNK SLQMNDYKIA LLCNA YSTN SECFTLPMGA LVETIYGNGI MRIPLPGTNC MASGSITPLP MNLLDSLTVH AKMSLIHSIA TRVIKLAHAK SSVALA PAL VETYSRLLVY MEIESLGIKG FISQLLPTVF KSHAWGILHT LLEMFSYRMH HIQPHYRVQL LSHLHTLAAV AQTNQNQ LH LCVESTALRL ITALGSSEVQ PQFTRFLSDP KTVLSAESEE LNRALILTLA RATHVTDFFT GSDSIQGTWC KDILQTIM S FTPHNWASHT LSCFPGPLQA FFKQNNVPQE SRFNLKKNVE EEYRKWKSMS NENDIITHFS MQGSPPLFLC LLWKMLLET DHINQIGYRV LERIGARALV AHVRTFADFL VYEFSTSAGG QQLNKCIEIL NDMVWKYNIV TLDRLILCLA MRSHEGNEAQ VCYFIIQLL LLKPNDFRNR VSDFVKENSP EHWLQNDWHT KHMNYHKKYP EKLYFEGLAE QVDPPVQIQS PYLPIYFGNV C LRFLPVFD IVIHRFLELL PVSKSLETLL DHLGGLYKFH DRPVTYLYNT LHYYEMHLRD RAFLKRKLVH AIIGSLKDNR PQ GWCLSDT YLKCAMNARE ENPWVPDDTY YCRLIGRLVD TMAGKSPGPF PNCDWRFNEF PNPAAHALHV TCVELMALAV SGK EVGNAL LNVVLKSQPL VPRENITAWM NAIGLIITAL PEPYWIVLHD RIVSVISSPS LTSETEWVGY PFRLFDFTAC HQSY SEMSC SYTLALAHAV WHHSSIGQLS LIPKFLTEVL LPIVKTEFQL LYVYHLVGPF LQRFQQERTR CMIEIGVAFY DMLLN VDQC STHLNYMDPI CDFLYHMKYM FTGDSVKEQV EKIICNLKPA LKLRLRFITH ISKMEPAAVP PQAMNSGSPA PQSNQV PVS LPVTQDVLFQ GPGHHHHHH UniProtKB: Mediator of RNA polymerase II transcription subunit 23 |
-分子 #2: Green fluorescent protein,ETS domain-containing protein Elk-1
分子 | 名称: Green fluorescent protein,ETS domain-containing protein Elk-1 タイプ: protein_or_peptide / ID: 2 詳細: fusion between GFP and ELK-1 transactivation domain (308-401) mutated at positions T336, T333, T353 and T363 (mutated to Ala) + C-terminal his tag,fusion between GFP and ELK-1 transactivation ...詳細: fusion between GFP and ELK-1 transactivation domain (308-401) mutated at positions T336, T333, T353 and T363 (mutated to Ala) + C-terminal his tag,fusion between GFP and ELK-1 transactivation domain (308-401) mutated at positions T336, T333, T353 and T363 (mutated to Ala) + C-terminal his tag,fusion between GFP and ELK-1 transactivation domain (308-401) mutated at positions T336, T333, T353 and T363 (mutated to Ala) + C-terminal his tag,fusion between GFP and ELK-1 transactivation domain (308-401) mutated at positions T336, T333, T353 and T363 (mutated to Ala) + C-terminal his tag コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 37.627406 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MVSKGEELFT GVVPILVELD GDVNGHKFSV SGEGEGDATY GKLTLKFICT TGKLPVPWPT LVTTLTYGVQ CFSRYPDHMK QHDFFKSAM PEGYVQERTI FFKDDGNYKT RAEVKFEGDT LVNRIELKGI DFKEDGNILG HKLEYNYNSH NVYIMADKQK N GIKVNFKI ...文字列: MVSKGEELFT GVVPILVELD GDVNGHKFSV SGEGEGDATY GKLTLKFICT TGKLPVPWPT LVTTLTYGVQ CFSRYPDHMK QHDFFKSAM PEGYVQERTI FFKDDGNYKT RAEVKFEGDT LVNRIELKGI DFKEDGNILG HKLEYNYNSH NVYIMADKQK N GIKVNFKI RHNIEDGSVQ LADHYQQNTP IGDGPVLLPD NHYLSTQSKL SKDPNEKRDH MVLLEFVTAA GITLGMDELY KG SSQPQKG RKPRDLELPL SPSLLGGPGP ERAPGSGSGS GLQAPGPALA PSLLPTHTLA PVLLTPSSLP PSIHFWSTL (SEP)PIAPRSPAK LSFQFPSSGH HHHHH UniProtKB: Green fluorescent protein, ETS domain-containing protein Elk-1 |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
緩衝液 | pH: 7.5 |
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グリッド | モデル: Quantifoil R2/1 / 材質: COPPER / メッシュ: 300 / 前処理 - タイプ: GLOW DISCHARGE |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 95 % / チャンバー内温度: 277.15 K / 装置: FEI VITROBOT MARK IV |
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電子顕微鏡法
顕微鏡 | JEOL CRYO ARM 300 |
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撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 平均電子線量: 63.6 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 1.7 µm / 最小 デフォーカス(公称値): 0.8 µm |
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画像解析
初期モデル | モデルのタイプ: PDB ENTRY PDBモデル - PDB ID: |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 2.98 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 346324 |
初期 角度割当 | タイプ: NOT APPLICABLE |
最終 角度割当 | タイプ: NOT APPLICABLE |