+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-0664 | |||||||||
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タイトル | Electron cryo-microscopy of the eukaryotic translation initiation factor 2B bound to eukaryotic translation initiation factor 2 from Homo sapiens | |||||||||
マップデータ | eIF2 alpha phosphorylated at serine 51 bound to eIF2B. | |||||||||
試料 |
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キーワード | eukaryotic translation initiation factor 2B / eukaryotic translation initiation factor 2 / TRANSLATION | |||||||||
機能・相同性 | 機能・相同性情報 regulation of translation in response to endoplasmic reticulum stress / translation initiation ternary complex / glial limiting end-foot / HRI-mediated signaling / response to kainic acid / Cellular response to mitochondrial stress / eukaryotic translation initiation factor 2B complex / response to manganese-induced endoplasmic reticulum stress / positive regulation of type B pancreatic cell apoptotic process / negative regulation of translational initiation in response to stress ...regulation of translation in response to endoplasmic reticulum stress / translation initiation ternary complex / glial limiting end-foot / HRI-mediated signaling / response to kainic acid / Cellular response to mitochondrial stress / eukaryotic translation initiation factor 2B complex / response to manganese-induced endoplasmic reticulum stress / positive regulation of type B pancreatic cell apoptotic process / negative regulation of translational initiation in response to stress / Response of EIF2AK1 (HRI) to heme deficiency / Recycling of eIF2:GDP / PERK-mediated unfolded protein response / PERK regulates gene expression / regulation of translational initiation in response to stress / eukaryotic translation initiation factor 2 complex / cytoplasmic translational initiation / guanyl-nucleotide exchange factor complex / oligodendrocyte development / astrocyte development / eukaryotic 48S preinitiation complex / astrocyte differentiation / regulation of translational initiation / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / Translation initiation complex formation / Response of EIF2AK4 (GCN2) to amino acid deficiency / mitophagy / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / positive regulation of translational initiation / response to glucose / ovarian follicle development / stress granule assembly / translation initiation factor binding / response to endoplasmic reticulum stress / myelination / translation initiation factor activity / cellular response to amino acid starvation / guanyl-nucleotide exchange factor activity / hippocampus development / central nervous system development / translational initiation / PKR-mediated signaling / ABC-family proteins mediated transport / response to peptide hormone / cytoplasmic stress granule / cellular response to UV / ribosome binding / regulation of translation / T cell receptor signaling pathway / cellular response to heat / cellular response to oxidative stress / response to heat / positive regulation of apoptotic process / synapse / GTP binding / mitochondrion / RNA binding / extracellular exosome / ATP binding / identical protein binding / membrane / nucleus / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.03 Å | |||||||||
データ登録者 | Nguyen HC / Kenner LR | |||||||||
資金援助 | 米国, 1件
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引用 | ジャーナル: Science / 年: 2019 タイトル: eIF2B-catalyzed nucleotide exchange and phosphoregulation by the integrated stress response. 著者: Lillian R Kenner / Aditya A Anand / Henry C Nguyen / Alexander G Myasnikov / Carolin J Klose / Lea A McGeever / Jordan C Tsai / Lakshmi E Miller-Vedam / Peter Walter / Adam Frost / 要旨: The integrated stress response (ISR) tunes the rate of protein synthesis. Control is exerted by phosphorylation of the general translation initiation factor eIF2. eIF2 is a guanosine triphosphatase ...The integrated stress response (ISR) tunes the rate of protein synthesis. Control is exerted by phosphorylation of the general translation initiation factor eIF2. eIF2 is a guanosine triphosphatase that becomes activated by eIF2B, a two-fold symmetric and heterodecameric complex that functions as eIF2's dedicated nucleotide exchange factor. Phosphorylation converts eIF2 from a substrate into an inhibitor of eIF2B. We report cryo-electron microscopy structures of eIF2 bound to eIF2B in the dephosphorylated state. The structures reveal that the eIF2B decamer is a static platform upon which one or two flexible eIF2 trimers bind and align with eIF2B's bipartite catalytic centers to catalyze nucleotide exchange. Phosphorylation refolds eIF2α, allowing it to contact eIF2B at a different interface and, we surmise, thereby sequestering it into a nonproductive complex. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_0664.map.gz | 154.4 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-0664-v30.xml emd-0664.xml | 17.4 KB 17.4 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_0664.png | 464.2 KB | ||
Filedesc metadata | emd-0664.cif.gz | 7.3 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-0664 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-0664 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_0664_validation.pdf.gz | 714.8 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_0664_full_validation.pdf.gz | 714.4 KB | 表示 | |
XML形式データ | emd_0664_validation.xml.gz | 7 KB | 表示 | |
CIF形式データ | emd_0664_validation.cif.gz | 8.1 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0664 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0664 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_0664.map.gz / 形式: CCP4 / 大きさ: 166.4 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | eIF2 alpha phosphorylated at serine 51 bound to eIF2B. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: 0.822 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : eIF2 Alpha-P bound to eIF2B
全体 | 名称: eIF2 Alpha-P bound to eIF2B |
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要素 |
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-超分子 #1: eIF2 Alpha-P bound to eIF2B
超分子 | 名称: eIF2 Alpha-P bound to eIF2B / タイプ: organelle_or_cellular_component / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
-分子 #1: Translation initiation factor eIF-2B subunit epsilon
分子 | 名称: Translation initiation factor eIF-2B subunit epsilon タイプ: protein_or_peptide / ID: 1 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 80.452586 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: MAAPVVAPPG VVVSRANKRS GAGPGGSGGG GARGAEEEPP PPLQAVLVAD SFDRRFFPIS KDQPRVLLPL ANVALIDYTL EFLTATGVQ ETFVFCCWKA AQIKEHLLKS KWCRPTSLNV VRIITSELYR SLGDVLRDVD AKALVRSDFL LVYGDVISNI N ITRALEEH ...文字列: MAAPVVAPPG VVVSRANKRS GAGPGGSGGG GARGAEEEPP PPLQAVLVAD SFDRRFFPIS KDQPRVLLPL ANVALIDYTL EFLTATGVQ ETFVFCCWKA AQIKEHLLKS KWCRPTSLNV VRIITSELYR SLGDVLRDVD AKALVRSDFL LVYGDVISNI N ITRALEEH RLRRKLEKNV SVMTMIFKES SPSHPTRCHE DNVVVAVDST TNRVLHFQKT QGLRRFAFPL SLFQGSSDGV EV RYDLLDC HISICSPQVA QLFTDNFDYQ TRDDFVRGLL VNEEILGNQI HMHVTAKEYG ARVSNLHMYS AVCADVIRRW VYP LTPEAN FTDSTTQSCT HSRHNIYRGP EVSLGHGSIL EENVLLGSGT VIGSNCFITN SVIGPGCHIG DNVVLDQTYL WQGV RVAAG AQIHQSLLCD NAEVKERVTL KPRSVLTSQV VVGPNITLPE GSVISLHPPD AEEDEDDGEF SDDSGADQEK DKVKM KGYN PAEVGAAGKG YLWKAAGMNM EEEEELQQNL WGLKINMEEE SESESEQSMD SEEPDSRGGS PQMDDIKVFQ NEVLGT LQR GKEENISCDN LVLEINSLKY AYNVSLKEVM QVLSHVVLEF PLQQMDSPLD SSRYCALLLP LLKAWSPVFR NYIKRAA DH LEALAAIEDF FLEHEALGIS MAKVLMAFYQ LEILAEETIL SWFSQRDTTD KGQQLRKNQQ LQRFIQWLKE AEEESSED D UniProtKB: Translation initiation factor eIF2B subunit epsilon |
-分子 #2: Translation initiation factor eIF-2B subunit beta
分子 | 名称: Translation initiation factor eIF-2B subunit beta / タイプ: protein_or_peptide / ID: 2 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 41.008578 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: MHHHHHHGGG SENLYFQSPG SAAKGSELSE RIESFVETLK RGGGPRSSEE MARETLGLLR QIITDHRWSN AGELMELIRR EGRRMTAAQ PSETTVGNMV RRVLKIIREE YGRLHGRSDE SDQQESLHKL LTSGGLNEDF SFHYAQLQSN IIEAINELLV E LEGTMENI ...文字列: MHHHHHHGGG SENLYFQSPG SAAKGSELSE RIESFVETLK RGGGPRSSEE MARETLGLLR QIITDHRWSN AGELMELIRR EGRRMTAAQ PSETTVGNMV RRVLKIIREE YGRLHGRSDE SDQQESLHKL LTSGGLNEDF SFHYAQLQSN IIEAINELLV E LEGTMENI AAQALEHIHS NEVIMTIGFS RTVEAFLKEA ARKRKFHVIV AECAPFCQGH EMAVNLSKAG IETTVMTDAA IF AVMSRVN KVIIGTKTIL ANGALRAVTG THTLALAAKH HSTPLIVCAP MFKLSPQFPN EEDSFHKFVA PEEVLPFTEG DIL EKVSVH CPVFDYVPPE LITLFISNIG GNAPSYIYRL MSELYHPDDH VL UniProtKB: Translation initiation factor eIF2B subunit beta |
-分子 #3: Translation initiation factor eIF-2B subunit delta
分子 | 名称: Translation initiation factor eIF-2B subunit delta / タイプ: protein_or_peptide / ID: 3 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 57.640168 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: MAAVAVAVRE DSGSGMKAEL PPGPGAVGRE MTKEEKLQLR KEKKQQKKKR KEEKGAEPET GSAVSAAQCQ VGPTRELPES GIQLGTPRE KVPAGRSKAE LRAERRAKQE AERALKQARK GEQGGPPPKA SPSTAGETPS GVKRLPEYPQ VDDLLLRRLV K KPERQQVP ...文字列: MAAVAVAVRE DSGSGMKAEL PPGPGAVGRE MTKEEKLQLR KEKKQQKKKR KEEKGAEPET GSAVSAAQCQ VGPTRELPES GIQLGTPRE KVPAGRSKAE LRAERRAKQE AERALKQARK GEQGGPPPKA SPSTAGETPS GVKRLPEYPQ VDDLLLRRLV K KPERQQVP TRKDYGSKVS LFSHLPQYSR QNSLTQFMSI PSSVIHPAMV RLGLQYSQGL VSGSNARCIA LLRALQQVIQ DY TTPPNEE LSRDLVNKLK PYMSFLTQCR PLSASMHNAI KFLNKEITSV GSSKREEEAK SELRAAIDRY VQEKIVLAAQ AIS RFAYQK ISNGDVILVY GCSSLVSRIL QEAWTEGRRF RVVVVDSRPW LEGRHTLRSL VHAGVPASYL LIPAASYVLP EVSK VLLGA HALLANGSVM SRVGTAQLAL VARAHNVPVL VCCETYKFCE RVQTDAFVSN ELDDPDDLQC KRGEHVALAN WQNHA SLRL LNLVYDVTPP ELVDLVITEL GMIPCSSVPV VLRVKSSDQ UniProtKB: Translation initiation factor eIF2B subunit delta |
-分子 #4: Translation initiation factor eIF-2B subunit alpha
分子 | 名称: Translation initiation factor eIF-2B subunit alpha / タイプ: protein_or_peptide / ID: 4 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 33.754148 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: MDDKELIEYF KSQMKEDPDM ASAVAAIRTL LEFLKRDKGE TIQGLRANLT SAIETLCGVD SSVAVSSGGE LFLRFISLAS LEYSDYSKC KKIMIERGEL FLRRISLSRN KIADLCHTFI KDGATILTHA YSRVVLRVLE AAVAAKKRFS VYVTESQPDL S GKKMAKAL ...文字列: MDDKELIEYF KSQMKEDPDM ASAVAAIRTL LEFLKRDKGE TIQGLRANLT SAIETLCGVD SSVAVSSGGE LFLRFISLAS LEYSDYSKC KKIMIERGEL FLRRISLSRN KIADLCHTFI KDGATILTHA YSRVVLRVLE AAVAAKKRFS VYVTESQPDL S GKKMAKAL CHLNVPVTVV LDAAVGYIME KADLVIVGAE GVVENGGIIN KIGTNQMAVC AKAQNKPFYV VAESFKFVRL FP LNQQDVP DKFKYKADTL KVAQTGQDLK EEHPWVDYTA PSLITLLFTD LGVLTPSAVS DELIKLYL UniProtKB: Translation initiation factor eIF2B subunit alpha |
-分子 #5: Translation initiation factor eIF-2B subunit gamma
分子 | 名称: Translation initiation factor eIF-2B subunit gamma / タイプ: protein_or_peptide / ID: 5 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 50.30423 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: MEFQAVVMAV GGGSRMTDLT SSIPKPLLPV GNKPLIWYPL NLLERVGFEE VIVVTTRDVQ KALCAEFKMK MKPDIVCIPD DADMGTADS LRYIYPKLKT DVLVLSCDLI TDVALHEVVD LFRAYDASLA MLMRKGQDSI EPVPGQKGKK KAVEQRDFIG V DSTGKRLL ...文字列: MEFQAVVMAV GGGSRMTDLT SSIPKPLLPV GNKPLIWYPL NLLERVGFEE VIVVTTRDVQ KALCAEFKMK MKPDIVCIPD DADMGTADS LRYIYPKLKT DVLVLSCDLI TDVALHEVVD LFRAYDASLA MLMRKGQDSI EPVPGQKGKK KAVEQRDFIG V DSTGKRLL FMANEADLDE ELVIKGSILQ KHPRIRFHTG LVDAHLYCLK KYIVDFLMEN GSITSIRSEL IPYLVRKQFS SA SSQQGQE EKEEDLKKKE LKSLDIYSFI KEANTLNLAP YDACWNACRG DRWEDLSRSQ VRCYVHIMKE GLCSRVSTLG LYM EANRQV PKLLSALCPE EPPVHSSAQI VSKHLVGVDS LIGPETQIGE KSSIKRSVIG SSCLIKDRVT ITNCLLMNSV TVEE GSNIQ GSVICNNAVI EKGADIKDCL IGSGQRIEAK AKRVNEVIVG NDQLMEI UniProtKB: Translation initiation factor eIF2B subunit gamma |
-分子 #6: Eukaryotic translation initiation factor 2 subunit 1
分子 | 名称: Eukaryotic translation initiation factor 2 subunit 1 タイプ: protein_or_peptide / ID: 6 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 37.238121 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: MDYKDDDDKP GLSCRFYQHK FPEVEDVVMV NVRSIAEMGA YVSLLEYNNI EGMILLSEL(SEP) RRRIRSINKL IRIGRN ECV VVIRVDKEKG YIDLSKRRVS PEEAIKCEDK FTKSKTVYSI LRHVAEVLEY TKDEQLESLF QRTAWVFDDK YKRPGYG AY ...文字列: MDYKDDDDKP GLSCRFYQHK FPEVEDVVMV NVRSIAEMGA YVSLLEYNNI EGMILLSEL(SEP) RRRIRSINKL IRIGRN ECV VVIRVDKEKG YIDLSKRRVS PEEAIKCEDK FTKSKTVYSI LRHVAEVLEY TKDEQLESLF QRTAWVFDDK YKRPGYG AY DAFKHAVSDP SILDSLDLNE DEREVLINNI NRRLTPQAVK IRADIEVACY GYEGIDAVKE ALRAGLNCST ENMPIKIN L IAPPRYVMTT TTLERTEGLS VLSQAMAVIK EKIEEKRGVF NVQMEPKVVT DTDETELARQ MERLERENAE VDGDDDAEE MEAKAED UniProtKB: Eukaryotic translation initiation factor 2 subunit 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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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 7.5 |
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グリッド | 詳細: unspecified |
凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 80.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
初期モデル | モデルのタイプ: OTHER / 詳細: Negative Stain 3D reconstruction |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.03 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 34014 |
初期 角度割当 | タイプ: OTHER |
最終 角度割当 | タイプ: OTHER |