negative regulation of mRNA 3'-end processing / histone H2AK127 ubiquitin ligase activity / histone H2AK129 ubiquitin ligase activity / Defective DNA double strand break response due to BRCA1 loss of function / Defective DNA double strand break response due to BARD1 loss of function / BRCA1-BARD1 complex / BRCA1-C complex / BRCA1-B complex / BRCA1-A complex / negative regulation of centriole replication ...negative regulation of mRNA 3'-end processing / histone H2AK127 ubiquitin ligase activity / histone H2AK129 ubiquitin ligase activity / Defective DNA double strand break response due to BRCA1 loss of function / Defective DNA double strand break response due to BARD1 loss of function / BRCA1-BARD1 complex / BRCA1-C complex / BRCA1-B complex / BRCA1-A complex / negative regulation of centriole replication / sex-chromosome dosage compensation / random inactivation of X chromosome / nuclear ubiquitin ligase complex / ubiquitin-modified histone reader activity / chordate embryonic development / negative regulation of intracellular estrogen receptor signaling pathway / cellular response to indole-3-methanol / gamma-tubulin ring complex / negative regulation of fatty acid biosynthetic process / DNA strand resection involved in replication fork processing / homologous recombination / Regulation of MITF-M-dependent genes involved in DNA replication, damage repair and senescence / tissue homeostasis / regulation of phosphorylation / Signaling by BMP / protein K6-linked ubiquitination / (E3-independent) E2 ubiquitin-conjugating enzyme / lateral element / regulation of DNA damage checkpoint / Impaired BRCA2 binding to PALB2 / XY body / mitotic G2/M transition checkpoint / negative regulation of protein export from nucleus / protein K11-linked ubiquitination / centrosome cycle / RNA polymerase binding / postreplication repair / DNA repair complex / positive regulation of protein targeting to mitochondrion / Homologous DNA Pairing and Strand Exchange / Defective homologous recombination repair (HRR) due to BRCA1 loss of function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA1 binding function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA2/RAD51/RAD51C binding function / Resolution of D-loop Structures through Synthesis-Dependent Strand Annealing (SDSA) / Resolution of D-loop Structures through Holliday Junction Intermediates / HDR through Single Strand Annealing (SSA) / intracellular membraneless organelle / E2 ubiquitin-conjugating enzyme / response to ionizing radiation / negative regulation of gene expression via chromosomal CpG island methylation / Impaired BRCA2 binding to RAD51 / mitotic G2 DNA damage checkpoint signaling / Transcriptional Regulation by E2F6 / ubiquitin conjugating enzyme activity / negative regulation of cell cycle / negative regulation of reactive oxygen species metabolic process / Presynaptic phase of homologous DNA pairing and strand exchange / positive regulation of vascular endothelial growth factor production / negative regulation of BMP signaling pathway / protein monoubiquitination / negative regulation of tumor necrosis factor-mediated signaling pathway / ubiquitin ligase complex / SUMOylation of DNA damage response and repair proteins / negative regulation of megakaryocyte differentiation / negative regulation of extrinsic apoptotic signaling pathway via death domain receptors / protein K48-linked ubiquitination / protein localization to CENP-A containing chromatin / regulation of DNA repair / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / protein autoubiquitination / CENP-A containing nucleosome / Packaging Of Telomere Ends / TICAM1, RIP1-mediated IKK complex recruitment / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / IKK complex recruitment mediated by RIP1 / PINK1-PRKN Mediated Mitophagy / 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 / telomere organization / cellular response to ionizing radiation / Interleukin-7 signaling / Inhibition of DNA recombination at telomere / tubulin binding / RNA Polymerase I Promoter Opening / Meiotic synapsis / Assembly of the ORC complex at the origin of replication / Negative regulators of DDX58/IFIH1 signaling / positive regulation of DNA repair / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / SUMOylation of chromatin organization proteins / DNA methylation / Peroxisomal protein import / Condensation of Prophase Chromosomes / epigenetic regulation of gene expression / Chromatin modifications during the maternal to zygotic transition (MZT) / Downregulation of SMAD2/3:SMAD4 transcriptional activity / SIRT1 negatively regulates rRNA expression 類似検索 - 分子機能
BARD1, Zinc finger, RING-type / zf-RING of BARD1-type protein / Breast cancer type 1 susceptibility protein (BRCA1) / BRCA1, serine-rich domain / BRCA1-associated / Serine-rich domain associated with BRCT / Zinc finger, C3HC4 RING-type / Zinc finger, C3HC4 type (RING finger) / BRCA1 C Terminus (BRCT) domain / Ubiquitin-conjugating enzyme, active site ...BARD1, Zinc finger, RING-type / zf-RING of BARD1-type protein / Breast cancer type 1 susceptibility protein (BRCA1) / BRCA1, serine-rich domain / BRCA1-associated / Serine-rich domain associated with BRCT / Zinc finger, C3HC4 RING-type / Zinc finger, C3HC4 type (RING finger) / BRCA1 C Terminus (BRCT) domain / Ubiquitin-conjugating enzyme, active site / Ubiquitin-conjugating (UBC) active site signature. / Ubiquitin-conjugating enzyme E2 / Ubiquitin-conjugating enzyme / Ubiquitin-conjugating (UBC) core domain profile. / Ubiquitin-conjugating enzyme E2, catalytic domain homologues / Ubiquitin-conjugating enzyme/RWD-like / breast cancer carboxy-terminal domain / BRCT domain profile. / BRCT domain / BRCT domain superfamily / Zinc finger, RING-type, conserved site / Zinc finger RING-type signature. / Ring finger / : / Histone H2B signature. / Histone H2A conserved site / Histone H2A signature. / Histone H2B / Histone H2B / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone 2A / Histone H2A / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / Histone H4, conserved site / Histone H4 signature. / Histone H4 / Histone H4 / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / Ankyrin repeats (3 copies) / Ankyrin repeat profile. / Ankyrin repeat region circular profile. / ankyrin repeats / Ankyrin repeat / Ankyrin repeat-containing domain superfamily / Zinc finger RING-type profile. / Zinc finger, RING-type / Histone H3 signature 1. / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 / Histone-fold / Zinc finger, RING/FYVE/PHD-type 類似検索 - ドメイン・相同性
Histone H2A type 1-B/E / Histone H2B type 1-J / Breast cancer type 1 susceptibility protein / Ubiquitin-conjugating enzyme E2 D3 / Histone H4 / Histone H3.1 / BRCA1-associated RING domain protein 1 類似検索 - 構成要素
National Institutes of Health/National Cancer Institute (NIH/NCI)
R01 CA132878
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R35 GM136262
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01 GM116829
米国
引用
ジャーナル: Nature / 年: 2021 タイトル: Mechanisms of BRCA1-BARD1 nucleosome recognition and ubiquitylation. 著者: Qi Hu / Maria Victoria Botuyan / Debiao Zhao / Gaofeng Cui / Elie Mer / Georges Mer / 要旨: The BRCA1-BARD1 tumour suppressor is an E3 ubiquitin ligase necessary for the repair of DNA double-strand breaks by homologous recombination. The BRCA1-BARD1 complex localizes to damaged chromatin ...The BRCA1-BARD1 tumour suppressor is an E3 ubiquitin ligase necessary for the repair of DNA double-strand breaks by homologous recombination. The BRCA1-BARD1 complex localizes to damaged chromatin after DNA replication and catalyses the ubiquitylation of histone H2A and other cellular targets. The molecular bases for the recruitment to double-strand breaks and target recognition of BRCA1-BARD1 remain unknown. Here we use cryo-electron microscopy to show that the ankyrin repeat and tandem BRCT domains in BARD1 adopt a compact fold and bind to nucleosomal histones, DNA and monoubiquitin attached to H2A amino-terminal K13 or K15, two signals known to be specific for double-strand breaks. We further show that RING domains in BRCA1-BARD1 orient an E2 ubiquitin-conjugating enzyme atop the nucleosome in a dynamic conformation, primed for ubiquitin transfer to the flexible carboxy-terminal tails of H2A and variant H2AX. Our work reveals a regulatory crosstalk in which recognition of monoubiquitin by BRCA1-BARD1 at the N terminus of H2A blocks the formation of polyubiquitin chains and cooperatively promotes ubiquitylation at the C terminus of H2A. These findings elucidate the mechanisms of BRCA1-BARD1 chromatin recruitment and ubiquitylation specificity, highlight key functions of BARD1 in both processes and explain how BRCA1-BARD1 promotes homologous recombination by opposing the DNA repair protein 53BP1 in post-replicative chromatin. These data provide a structural framework to evaluate BARD1 variants and help to identify mutations that drive the development of cancer.