- EMDB-4693: Structure of a human nucleosome at 3.5 A resolution -
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基本情報
登録情報
データベース: EMDB / ID: EMD-4693
タイトル
Structure of a human nucleosome at 3.5 A resolution
マップデータ
Masked Structure of a human nucleosome wrapped with 171bp of Widom-601 strong positioning DNA at 3.5 A resolution.
試料
複合体: human nucleosome particle
複合体: octamer of human histones
複合体: 171bp widom-601 DNA
機能・相同性
機能・相同性情報
negative regulation of chromosome condensation / Barr body / : / inner kinetochore / pericentric heterochromatin formation / muscle cell differentiation / oocyte maturation / nucleosomal DNA binding / nucleus organization / spermatid development ...negative regulation of chromosome condensation / Barr body / : / inner kinetochore / pericentric heterochromatin formation / muscle cell differentiation / oocyte maturation / nucleosomal DNA binding / nucleus organization / spermatid development / single fertilization / subtelomeric heterochromatin formation / negative regulation of megakaryocyte differentiation / RNA polymerase II core promoter sequence-specific DNA binding / protein localization to CENP-A containing chromatin / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Deposition of new CENPA-containing nucleosomes at the centromere / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / embryo implantation / telomere organization / Inhibition of DNA recombination at telomere / RNA Polymerase I Promoter Opening / Meiotic synapsis / Assembly of the ORC complex at the origin of replication / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / SUMOylation of chromatin organization proteins / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / SIRT1 negatively regulates rRNA expression / HCMV Late Events / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / innate immune response in mucosa / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / HDMs demethylate histones / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / HDACs deacetylate histones / RNA Polymerase I Promoter Escape / Nonhomologous End-Joining (NHEJ) / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / G2/M DNA damage checkpoint / Metalloprotease DUBs / NoRC negatively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / B-WICH complex positively regulates rRNA expression / PKMTs methylate histone lysines / Meiotic recombination / Pre-NOTCH Transcription and Translation / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / multicellular organism growth / male gonad development / Transcriptional regulation of granulopoiesis / UCH proteinases / HCMV Early Events / antimicrobial humoral immune response mediated by antimicrobial peptide / osteoblast differentiation / structural constituent of chromatin / antibacterial humoral response / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / nucleosome / heterochromatin formation / RUNX1 regulates transcription of genes involved in differentiation of HSCs / nucleosome assembly / Processing of DNA double-strand break ends / HATs acetylate histones / Senescence-Associated Secretory Phenotype (SASP) / Factors involved in megakaryocyte development and platelet production / chromatin organization / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / positive regulation of cell growth / Oxidative Stress Induced Senescence / Estrogen-dependent gene expression / chromosome, telomeric region / cell population proliferation / Ub-specific processing proteases / defense response to Gram-positive bacterium / RNA polymerase II cis-regulatory region sequence-specific DNA binding / Amyloid fiber formation / protein heterodimerization activity / enzyme binding / protein-containing complex / extracellular space / DNA binding / RNA binding / extracellular exosome / extracellular region / nucleoplasm / identical protein binding 類似検索 - 分子機能
ジャーナル: Nat Commun / 年: 2019 タイトル: Retroviral integration into nucleosomes through DNA looping and sliding along the histone octamer. 著者: Marcus D Wilson / Ludovic Renault / Daniel P Maskell / Mohamed Ghoneim / Valerie E Pye / Andrea Nans / David S Rueda / Peter Cherepanov / Alessandro Costa / 要旨: Retroviral integrase can efficiently utilise nucleosomes for insertion of the reverse-transcribed viral DNA. In face of the structural constraints imposed by the nucleosomal structure, integrase ...Retroviral integrase can efficiently utilise nucleosomes for insertion of the reverse-transcribed viral DNA. In face of the structural constraints imposed by the nucleosomal structure, integrase gains access to the scissile phosphodiester bonds by lifting DNA off the histone octamer at the site of integration. To clarify the mechanism of DNA looping by integrase, we determined a 3.9 Å resolution structure of the prototype foamy virus intasome engaged with a nucleosome core particle. The structural data along with complementary single-molecule Förster resonance energy transfer measurements reveal twisting and sliding of the nucleosomal DNA arm proximal to the integration site. Sliding the nucleosomal DNA by approximately two base pairs along the histone octamer accommodates the necessary DNA lifting from the histone H2A-H2B subunits to allow engagement with the intasome. Thus, retroviral integration into nucleosomes involves the looping-and-sliding mechanism for nucleosomal DNA repositioning, bearing unexpected similarities to chromatin remodelers.
名称: human nucleosome particle / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1 詳細: recombinant human nucleosmes generated by expression of individual human histones and PCR synthesis of 171bp Widonm 601 DNA