ジャーナル: Science / 年: 2021 タイトル: Structural basis of Integrator-mediated transcription regulation. 著者: Isaac Fianu / Ying Chen / Christian Dienemann / Olexandr Dybkov / Andreas Linden / Henning Urlaub / Patrick Cramer / 要旨: Integrator and protein phosphatase 2A (PP2A) form a complex that dephosphorylates paused RNA polymerase II (Pol II), cleaves the nascent RNA, and terminates transcription. We report the structure of ...Integrator and protein phosphatase 2A (PP2A) form a complex that dephosphorylates paused RNA polymerase II (Pol II), cleaves the nascent RNA, and terminates transcription. We report the structure of the pretermination complex containing the human Integrator-PP2A complex bound to paused Pol II. Integrator binds Pol II and the pausing factors DSIF and NELF to exclude binding of the elongation factors SPT6 and PAF1 complex. Integrator also binds the C-terminal domain of Pol II and positions PP2A to counteract Pol II phosphorylation and elongation. The Integrator endonuclease docks to the RNA exit site and opens to cleave nascent RNA about 20 nucleotides from the Pol II active site. Integrator does not bind the DNA clamps formed by Pol II and DSIF, enabling release of DNA and transcription termination.
分子量: 19314.283 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Sus scrofa domesticus (ブタ) / 参照: UniProt: I3LJZ9
#9: タンパク質
DNA-directedRNApolymeraseIIsubunitRPB9 / RNA polymerase II subunit B9 / DNA-directed RNA polymerase II subunit I / RNA polymerase II 14.5 ...RNA polymerase II subunit B9 / DNA-directed RNA polymerase II subunit I / RNA polymerase II 14.5 kDa subunit / RPB14.5
分子量: 244574.922 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: INTS1, KIAA1440, UNQ1821/PRO3434 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q8N201
#23: タンパク質
Integratorcomplexsubunit2 / Int2
分子量: 134451.625 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: INTS2, KIAA1287 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q9H0H0
#24: タンパク質
Integratorcomplexsubunit4 / Int4
分子量: 108306.758 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: INTS4, MSTP093 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q96HW7
#25: タンパク質
Integratorcomplexsubunit5 / Int5
分子量: 108115.227 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: INTS5, KIAA1698 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q6P9B9
#26: タンパク質
Integratorcomplexsubunit6 / Int6 / DBI-1 / Protein DDX26 / Protein deleted in cancer 1 / DICE1
分子量: 100527.078 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: INTS6, DBI1, DDX26, DDX26A / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q9UL03
#27: タンパク質
Integratorcomplexsubunit7 / Int7
分子量: 106952.617 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: INTS7, C1orf73 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q9NVH2
#28: タンパク質
Integratorcomplexsubunit8 / Int8 / Protein kaonashi-1
分子量: 113219.859 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: INTS8, C8orf52 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q75QN2
#29: タンパク質
Integratorcomplexsubunit9 / Int9 / Protein related to CPSF subunits of 74 kDa / RC-74
分子量: 73891.219 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: INTS9, RC74 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q9NV88
#30: タンパク質
Integratorcomplexsubunit11 / Int11 / Cleavage and polyadenylation-specific factor 3-like protein / CPSF3-like protein / Protein ...Int11 / Cleavage and polyadenylation-specific factor 3-like protein / CPSF3-like protein / Protein related to CPSF subunits of 68 kDa / RC-68