- PDB-6ax5: RPT1 region of INI1/SNF5/SMARCB1_HUMAN - SWI/SNF-related matrix-a... -
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基本情報
登録情報
データベース: PDB / ID: 6ax5
タイトル
RPT1 region of INI1/SNF5/SMARCB1_HUMAN - SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily B member 1.
要素
SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily B member 1
キーワード
NUCLEAR PROTEIN / RPT1 / INI1 / actin-dependent regulator
機能・相同性
機能・相同性情報
single stranded viral RNA replication via double stranded DNA intermediate / positive regulation of glucose mediated signaling pathway / positive regulation of pseudohyphal growth by positive regulation of transcription from RNA polymerase II promoter / blastocyst hatching / bBAF complex / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / npBAF complex / Tat protein binding / brahma complex / nBAF complex ...single stranded viral RNA replication via double stranded DNA intermediate / positive regulation of glucose mediated signaling pathway / positive regulation of pseudohyphal growth by positive regulation of transcription from RNA polymerase II promoter / blastocyst hatching / bBAF complex / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / npBAF complex / Tat protein binding / brahma complex / nBAF complex / regulation of G0 to G1 transition / nucleosome disassembly / regulation of nucleotide-excision repair / hepatocyte differentiation / XY body / RSC-type complex / RNA polymerase I preinitiation complex assembly / positive regulation by host of viral transcription / regulation of mitotic metaphase/anaphase transition / SWI/SNF complex / positive regulation of double-strand break repair / germ cell nucleus / positive regulation of T cell differentiation / nuclear chromosome / positive regulation of stem cell population maintenance / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / regulation of G1/S transition of mitotic cell cycle / positive regulation of myoblast differentiation / transcription initiation-coupled chromatin remodeling / positive regulation of cell differentiation / fibrillar center / kinetochore / RMTs methylate histone arginines / positive regulation of DNA-binding transcription factor activity / nuclear matrix / DNA integration / p53 binding / nervous system development / transcription coactivator activity / chromatin remodeling / cell cycle / negative regulation of cell population proliferation / intracellular membrane-bounded organelle / chromatin / nucleolus / regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / protein-containing complex / DNA binding / nucleoplasm / identical protein binding / nucleus 類似検索 - 分子機能
ジャーナル: Nat Commun / 年: 2021 タイトル: INI1/SMARCB1 Rpt1 domain mimics TAR RNA in binding to integrase to facilitate HIV-1 replication. 著者: Updesh Dixit / Savita Bhutoria / Xuhong Wu / Liming Qiu / Menachem Spira / Sheeba Mathew / Richard Harris / Lucas J Adams / Sean Cahill / Rajiv Pathak / P Rajesh Kumar / Minh Nguyen / ...著者: Updesh Dixit / Savita Bhutoria / Xuhong Wu / Liming Qiu / Menachem Spira / Sheeba Mathew / Richard Harris / Lucas J Adams / Sean Cahill / Rajiv Pathak / P Rajesh Kumar / Minh Nguyen / Seetharama A Acharya / Michael Brenowitz / Steven C Almo / Xiaoqin Zou / Alasdair C Steven / David Cowburn / Mark Girvin / Ganjam V Kalpana / 要旨: INI1/SMARCB1 binds to HIV-1 integrase (IN) through its Rpt1 domain and exhibits multifaceted role in HIV-1 replication. Determining the NMR structure of INI1-Rpt1 and modeling its interaction with ...INI1/SMARCB1 binds to HIV-1 integrase (IN) through its Rpt1 domain and exhibits multifaceted role in HIV-1 replication. Determining the NMR structure of INI1-Rpt1 and modeling its interaction with the IN-C-terminal domain (IN-CTD) reveal that INI1-Rpt1/IN-CTD interface residues overlap with those required for IN/RNA interaction. Mutational analyses validate our model and indicate that the same IN residues are involved in both INI1 and RNA binding. INI1-Rpt1 and TAR RNA compete with each other for IN binding with similar IC values. INI1-interaction-defective IN mutant viruses are impaired for incorporation of INI1 into virions and for particle morphogenesis. Computational modeling of IN-CTD/TAR complex indicates that the TAR interface phosphates overlap with negatively charged surface residues of INI1-Rpt1 in three-dimensional space, suggesting that INI1-Rpt1 domain structurally mimics TAR. This possible mimicry between INI1-Rpt1 and TAR explains the mechanism by which INI1/SMARCB1 influences HIV-1 late events and suggests additional strategies to inhibit HIV-1 replication.
詳細: 10 mm Na phosphate, 150 mM NaCl, 1 mM Na/EDTA, 5 mm TCEP イオン強度: 160 mM / Ionic strength err: 3 / Label: 1 / pH: 6.8 Not defined / PH err: 0.05 / 圧: 1 atm / Pressure err: 0.01 / 温度: 298 K / Temperature err: 1