+データを開く
-基本情報
登録情報 | データベース: SASBDB / ID: SASDDR3 |
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試料 | Yeast tRNA Nm34 methyltransferase Trm7-Trm734 complex from Sacharomyces cerevisiae
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機能・相同性 | 機能・相同性情報 tRNA (cytidine32/guanosine34-2'-O)-methyltransferase / wobble position ribose methylation / tRNA 2'-O-methyltransferase activity / tRNA (cytidine(32)-2'-O)-methyltransferase activity / tRNA (guanine(34)-2'-O)-methyltransferase activity / tRNA (guanine) methyltransferase activity / RND1 GTPase cycle / tRNA nucleoside ribose methylation / RHOU GTPase cycle / RHOV GTPase cycle ...tRNA (cytidine32/guanosine34-2'-O)-methyltransferase / wobble position ribose methylation / tRNA 2'-O-methyltransferase activity / tRNA (cytidine(32)-2'-O)-methyltransferase activity / tRNA (guanine(34)-2'-O)-methyltransferase activity / tRNA (guanine) methyltransferase activity / RND1 GTPase cycle / tRNA nucleoside ribose methylation / RHOU GTPase cycle / RHOV GTPase cycle / tRNA methyltransferase activity / tRNA methylation / S-adenosyl-L-methionine binding / endocytic recycling / enzyme regulator activity / cytoplasmic translation / tRNA binding / エンドソーム / 細胞質基質 / 細胞質 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: Nucleic Acids Res / 年: 2019 タイトル: Structure of tRNA methyltransferase complex of Trm7 and Trm734 reveals a novel binding interface for tRNA recognition. 著者: Akira Hirata / Keisuke Okada / Kazuaki Yoshii / Hiroyuki Shiraishi / Shinya Saijo / Kento Yonezawa / Nobutaka Shimizu / Hiroyuki Hori / 要旨: The complex between Trm7 and Trm734 (Trm7-Trm734) from Saccharomyces cerevisiae catalyzes 2'-O-methylation at position 34 in tRNA. We report biochemical and structural studies of the Trm7-Trm734 ...The complex between Trm7 and Trm734 (Trm7-Trm734) from Saccharomyces cerevisiae catalyzes 2'-O-methylation at position 34 in tRNA. We report biochemical and structural studies of the Trm7-Trm734 complex. Purified recombinant Trm7-Trm734 preferentially methylates tRNAPhe transcript variants possessing two of three factors (Cm32, m1G37 and pyrimidine34). Therefore, tRNAPhe, tRNATrp and tRNALeu are specifically methylated by Trm7-Trm734. We have solved the crystal structures of the apo and S-adenosyl-L-methionine bound forms of Trm7-Trm734. Small angle X-ray scattering reveals that Trm7-Trm734 exists as a hetero-dimer in solution. Trm7 possesses a Rossmann-fold catalytic domain, while Trm734 consists of three WD40 β-propeller domains (termed BPA, BPB and BPC). BPA and BPC form a unique V-shaped cleft, which docks to Trm7. The C-terminal region of Trm7 is required for binding to Trm734. The D-arm of substrate tRNA is required for methylation by Trm7-Trm734. If the D-arm in tRNAPhe is docked onto the positively charged area of BPB in Trm734, the anticodon-loop is located near the catalytic pocket of Trm7. This model suggests that Trm734 is required for correct positioning of tRNA for methylation. Additionally, a point-mutation in Trm7, which is observed in FTSJ1 (human Trm7 ortholog) of nosyndromic X-linked intellectual disability patients, decreases the methylation activity. |
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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 #1789 | タイプ: dummy / ダミー原子の半径: 4.25 A / 対称性: P1 / カイ2乗値: 1.917 / P-value: 0.034809 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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モデル #1790 | タイプ: mix / ダミー原子の半径: 1.90 A / 対称性: P1 / カイ2乗値: 2.18 / P-value: 0.000008 Omokage検索でこの集合体の類似形状データを探す (詳細) |
-試料
試料 | 名称: Yeast tRNA Nm34 methyltransferase Trm7-Trm734 complex from Sacharomyces cerevisiae 試料濃度: 0.47-3.10 / Entity id: 978 / 979 |
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バッファ | 名称: 50 mM HEPES, 200 mM KCl, 5% v/v Glycerol, 10mM β-mercaptoethanol pH: 8 |
要素 #978 | 名称: Trm7_yeast / タイプ: protein 記述: Trm7: tRNA (cytidine(32)/guanosine(34)-2'-O)-methyltransferase 分子量: 36.494 / 分子数: 1 由来: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) 参照: UniProt: P38238 配列: MGKSSKDKRD LYYRKAKEQG YRARSAFKLL QLNDQFHFLD DPNLKRVVDL CAAPGSWSQV LSRKLFDESP SSDKEDRKIV SVDLQPMSPI PHVTTLQADI THPKTLARIL KLFGNEKADF VCSDGAPDVT GLHDLDEYVQ QQLIMSALQL TACILKKGGT FVAKIFRGRD ...配列: MGKSSKDKRD LYYRKAKEQG YRARSAFKLL QLNDQFHFLD DPNLKRVVDL CAAPGSWSQV LSRKLFDESP SSDKEDRKIV SVDLQPMSPI PHVTTLQADI THPKTLARIL KLFGNEKADF VCSDGAPDVT GLHDLDEYVQ QQLIMSALQL TACILKKGGT FVAKIFRGRD IDMLYSQLGY LFDKIVCAKP RSSRGTSLEA FIVCLGYNPP SNWTPKLDVN TSVDEFFQGC FLNKLCISDK LSHWNEEERN IAEFMACGSL QSFDSDATYH DLPSSVAGTS SSLDPVQSPT NPPYKKALEL KRSGKLTRSV LEVLFQGPSH HHHHH |
要素 #979 | 名称: Trm734 (WDR6_yeast) / タイプ: protein / 記述: Trm734: Regulator of Ty1 transposition protein 10 / 分子量: 116.254 / 分子数: 1 由来: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) 参照: UniProt: Q08924 配列: MKDLSHYGPA LCVKFYNDYV LAGYGPFIHV YDYHSATLIN KCRLFHYNKV HGLSLSSEGK ILAYGARSVT IVELEDVLKK ESLVDFERIN SDWITGATFS FDNLQIYLLT CYNKVLICDL NCEVLFRKSL GGERSILYSG IIKVFGPDKV YVNAGTVMGG VIIWDLFSET ...配列: MKDLSHYGPA LCVKFYNDYV LAGYGPFIHV YDYHSATLIN KCRLFHYNKV HGLSLSSEGK ILAYGARSVT IVELEDVLKK ESLVDFERIN SDWITGATFS FDNLQIYLLT CYNKVLICDL NCEVLFRKSL GGERSILYSG IIKVFGPDKV YVNAGTVMGG VIIWDLFSET KIHNLLGHEG SIFYVNLSNN GRYVASCSDD RSIRLWDLET GKQLSVGWSH TARIWNLMFF DNDSKLISVS EDCTCRVWNI IESRENVAEL SISNVYEVHL IKSIWGVDVK DDEMIAVTSG NDGRLKLIDL LQLKRHGDEE TSFSLDDIAK QCGDIFEKNE SIKGFQWFSF GVIAITSLGK ILKYSDVTKQ WKLLLTNEKF NSYPITNGIQ TQNIAVFSNN KSDILLIKFS KDSADIIETE EFHLDELSKT NNCLVTEYDD DSFLLTLQSP NPREKFVCLE ISLQNLKIKS KHCFNKPENF SSSCLTSFRN HILVGSRFST LVIYNLLDES EEPFIIRRLS PGDTTTSIEF VEDKDNSAVF SVTNRDGYYV FIELTKNSLE EGPYRLSYKV LHSNKMMKGF LEGAFFNSKG EYITYGFKSS LFYLYNETNC YELASEVCGG SHRLWNLAKI TDGHVLMYIK ASRFHLRKIY NSIVPETLEN GVHGREIRDI SICPVSNTNT NDNFKDGHIF CTASEDTTIK LGYFNNRTGK VQNFWTQRKH VSGLQRCQFI NHKLMISSSA REELFLWELN DKYNKRPYMT IRQALPVSTN NSDLRIMDFD VKFISQSGDF LLVTVYSDST IKIWHYRENQ NKFDLIMQGR YKTCCLFNVV FIALKEELLV VISPTDGHLV VYNITEYVPF SVDPISGDLV DHKLDATISN LPAPVAQLPV HQSGVKSLDY VANATRTSAT ILTGGDDNGL GLSNLKLDDS NKVTLKTSDF IAAAASSTIT SGMLINGGKE VITTSVDQVI RAWEITAGKL SLVDKKRTTV ADTGSLEIIS NDEDADSEKT LLIGGVGLSI WKKLEVLFQG PSHHHHHH |
-実験情報
ビーム | 設備名称: Photon Factory (PF), High Energy Accelerator Research Organization (KEK) BL-10C 地域: Tsukuba / 国: Japan / 線源: X-ray synchrotronシンクロトロン / 波長: 0.1 Å / スペクトロメータ・検出器間距離: 2.05 mm | |||||||||||||||||||||||||||||||||
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検出器 | 名称: Pilatus3 2M / Pixsize x: 0.172 mm | |||||||||||||||||||||||||||||||||
スキャン | タイトル: Yeast tRNA Nm34 methyltransferase Trm7-Trm734 complex from Sacharomyces cerevisiae 測定日: 2015年12月16日 / 保管温度: 20 °C / セル温度: 20 °C / 照射時間: 20 sec. / フレーム数: 40 / 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: 592 /
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結果 | カーブのタイプ: extrapolated /
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