Abstract:
:To determine which genomic features promote homologous recombination, we created a genome-wide map of gene targeting sites. We used an adeno-associated virus vector to target identical loci introduced as transcriptionally active retroviral vectors. A comparison of ~2,000 targeted and untargeted sites showed that targeting occurred throughout the human genome and was not influenced by the presence of nearby CpG islands, sequence repeats or DNase I-hypersensitive sites. Targeted sites were preferentially located within transcription units, especially when the target loci were transcribed in the opposite orientation to their surrounding chromosomal genes. We determined the impact of DNA replication by mapping replication forks, which revealed a preference for recombination at target loci transcribed toward an incoming fork. Our results constitute the first genome-wide screen of gene targeting in mammalian cells and demonstrate a strong recombinogenic effect of colliding polymerases.
journal_name
Nat Struct Mol Bioljournal_title
Nature structural & molecular biologyauthors
Deyle DR,Hansen RS,Cornea AM,Li LB,Burt AA,Alexander IE,Sandstrom RS,Stamatoyannopoulos JA,Wei CL,Russell DWdoi
10.1038/nsmb.2895subject
Has Abstractpub_date
2014-11-01 00:00:00pages
969-75issue
11eissn
1545-9993issn
1545-9985pii
nsmb.2895journal_volume
21pub_type
杂志文章abstract::Jun dimerization protein-2 (JDP2) is a component of the AP-1 transcription factor that represses transactivation mediated by the Jun family of proteins. Here, we examine the functional mechanisms of JDP2 and show that it can inhibit p300-mediated acetylation of core histones in vitro and in vivo. Inhibition of histone...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb1063
更新日期:2006-04-01 00:00:00
abstract::Beta-2 microglobulin (beta2m) is a globular protein that self-associates into fibrillar amyloid deposits in patients undergoing hemodialysis therapy. Formation of these beta-sheet-rich assemblies is a fundamental property of polypeptides that can be triggered by diverse conditions. For beta2m, oligomerization into pre...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1483
更新日期:2008-09-01 00:00:00
abstract::Members of the X11/Mint family of multidomain adaptor proteins are composed of a divergent N terminus, a conserved PTB domain and a pair of C-terminal PDZ domains. Many proteins can interact with the PDZ tandem of X11 proteins, although the mechanism of such interactions is unclear. Here we show that the highly conser...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb958
更新日期:2005-08-01 00:00:00
abstract::Pre-messenger RNAs (pre-mRNAs) maturation is initiated cotranscriptionally. It is therefore conceivable that chromatin-borne information participates in alternative splicing. Here we find that elevated levels of trimethylation of histone H3 on Lys9 (H3K9me3) are a characteristic of the alternative exons of several gen...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1995
更新日期:2011-03-01 00:00:00
abstract::Clustered codons that pair to low-abundance tRNA isoacceptors can form slow-translating regions in the mRNA and cause transient ribosomal arrest. We report that folding efficiency of the Escherichia coli multidomain protein SufI can be severely perturbed by alterations in ribosome-mediated translational attenuation. S...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1554
更新日期:2009-03-01 00:00:00
abstract::Neuronal communication is mediated by Ca(2+)-triggered fusion of transmitter-filled synaptic vesicles with the presynaptic plasma membrane. Synaptotagmin I functions as a Ca(2+) sensor that regulates exocytosis, whereas soluble N-ethylmaleimide-sensitive factor attachment protein (SNAP) receptor (SNARE) proteins in th...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1463
更新日期:2008-08-01 00:00:00
abstract::BAK and BAX are essential mediators of apoptosis that oligomerize in response to death cues, thereby causing permeabilization of the mitochondrial outer membrane. Their transition from quiescent monomers to pore-forming oligomers involves a well-characterized symmetric dimer intermediate. However, no essential seconda...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/s41594-020-0494-5
更新日期:2020-11-01 00:00:00
abstract::Self-templating assemblies of the human prion protein are clinically associated with transmissible spongiform encephalopathies. Here we present the cryo-EM structure of a denaturant- and protease-resistant fibril formed in vitro spontaneously by a 9.7-kDa unglycosylated fragment of the human prion protein. This human ...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/s41594-020-0403-y
更新日期:2020-05-01 00:00:00
abstract::An increasing body of evidence indicates that transcription and splicing are coupled, and it is accepted that chromatin organization regulates transcription. Little is known about the cross-talk between chromatin structure and exon-intron architecture. By analysis of genome-wide nucleosome-positioning data sets from h...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1659
更新日期:2009-09-01 00:00:00
abstract::Mycobacterium tuberculosis uses a proteasome system that is analogous to the eukaryotic ubiquitin-proteasome pathway and is required for pathogenesis. However, the bacterial analog of ubiquitin, prokaryotic ubiquitin-like protein (Pup), is an intrinsically disordered protein that bears little sequence or structural re...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1918
更新日期:2010-11-01 00:00:00
abstract::The WD40-repeat protein WDR5 is a conserved subunit of Trithorax (TRX) histone methyltransferase complexes. WDR5 has been reported to selectively bind dimethylated Lys4 (K4me2) in histone H3 to promote K4 trimethylation by TRX. To elucidate the basis of this binding specificity, we have determined the crystal structur...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb1116
更新日期:2006-08-01 00:00:00
abstract::CpG island-like sequences are commonly thought to provide the sole signals for designating constitutively unmethylated regions in the genome, thus generating open chromatin domains within a sea of global repression. Using a new database obtained from comprehensive microarray analysis, we show that unmethylated regions...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1594
更新日期:2009-05-01 00:00:00
abstract::The long noncoding RNA Xist is expressed from only the paternal X chromosome in mouse preimplantation female embryos and mediates transcriptional silencing of that chromosome. In females, absence of Xist leads to postimplantation lethality. Here, through single-cell RNA sequencing of early preimplantation mouse embryo...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.3365
更新日期:2017-03-01 00:00:00
abstract::The extracellular domain of the metabotropic glutamate receptor 1alpha (mGluR1alpha) forms a dimer and the ligand, glutamate, induces a structural rearrangement in this domain. However, the conformational change in the cytoplasmic domain, which is critical for mGluR1alpha's interaction with G proteins, remains unclear...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb770
更新日期:2004-07-01 00:00:00
abstract::In eukaryotes, the essential dimeric molecular chaperone Hsp90 is required for the activation and maturation of specific substrates such as steroid hormone receptors, tyrosine kinases and transcription factors. Hsp90 is involved in the establishment of cancer and has become an attractive target for drug design. Here w...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.2114
更新日期:2011-09-04 00:00:00
abstract::Targeted gene silencing by RNA interference (RNAi) requires loading of a short guide RNA (small interfering RNA (siRNA) or microRNA (miRNA)) onto an Argonaute protein to form the functional center of an RNA-induced silencing complex (RISC). In humans, Argonaute2 (AGO2) assembles with the guide RNA-generating enzyme Di...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1673
更新日期:2009-11-01 00:00:00
abstract::Changing environmental conditions and lessening fresh water supplies have sparked intense interest in understanding and manipulating abscisic acid (ABA) signaling, which controls adaptive responses to drought and other abiotic stressors. We recently discovered a selective ABA agonist, pyrabactin, and used it to discov...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1898
更新日期:2010-09-01 00:00:00
abstract::Argonaute (Ago) proteins mediate silencing of nucleic acid targets by small RNAs. In fission yeast, Ago1, Tas3 and Chp1 assemble into a RITS complex, which silences transcription near centromeres. Here we describe a repetitive motif within Tas3, termed the 'Argonaute hook', that is conserved from yeast to humans and b...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb1302
更新日期:2007-10-01 00:00:00
abstract::The CagA protein of Helicobacter pylori interacts with numerous cellular factors and is associated with increased virulence and risk of gastric carcinoma. We present here the cocrystal structure of a subdomain of CagA with the human kinase PAR1b/MARK2, revealing that a CagA peptide mimics substrates of this kinase fam...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1705
更新日期:2010-01-01 00:00:00
abstract::TRIMCyps are primate antiretroviral proteins that potently inhibit HIV replication. Here we describe how rhesus macaque TRIMCyp (RhTC) has evolved to target and restrict HIV-2. We show that the ancestral cyclophilin A (CypA) domain of RhTC targets HIV-2 capsid with weak affinity, which is strongly increased in RhTC by...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1667
更新日期:2009-10-01 00:00:00
abstract::Severe acute respiratory syndrome coronavirus nsp1 protein suppresses host gene expression, including type I interferon production, by promoting host mRNA degradation and inhibiting host translation, in infected cells. We present evidence that nsp1 uses a novel, two-pronged strategy to inhibit host translation and gen...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1680
更新日期:2009-11-01 00:00:00
abstract::Many genomic alterations associated with human diseases localize in noncoding regulatory elements located far from the promoters they regulate, making it challenging to link noncoding mutations or risk-associated variants with target genes. The range of action of a given set of enhancers is thought to be defined by in...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.2059
更新日期:2011-06-01 00:00:00
abstract::The proteasome is the main ATP-dependent protease in eukaryotic cells and controls the concentration of many regulatory proteins in the cytosol and nucleus. Proteins are targeted to the proteasome by the covalent attachment of polyubiquitin chains. The ubiquitin modification serves as the proteasome recognition elemen...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb814
更新日期:2004-09-01 00:00:00
abstract::During homologous recombination, Rad51 forms a nucleoprotein filament with single-stranded DNA (ssDNA) that undergoes strand exchange with homologous double-stranded DNA (dsDNA). Here, we use real-time analysis to show that strand exchange by fission yeast Rad51 proceeds via two distinct three-strand intermediates, C1...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/s41594-017-0002-8
更新日期:2018-01-01 00:00:00
abstract::Myotonic dystrophy is an RNA gain-of-function disease caused by expanded CUG or CCUG repeats, which sequester the RNA binding protein MBNL1. Here we describe a newly discovered function for MBNL1 as a regulator of pre-miR-1 biogenesis and find that miR-1 processing is altered in heart samples from people with myotonic...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.2067
更新日期:2011-06-19 00:00:00
abstract::Ribosome-associated quality control (RQC) represents a rescue pathway in eukaryotic cells that is triggered upon translational stalling. Collided ribosomes are recognized for subsequent dissociation followed by degradation of nascent peptides. However, endogenous RQC-inducing sequences and the mechanism underlying the...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/s41594-020-0393-9
更新日期:2020-04-01 00:00:00
abstract::The PHD finger protein 1 (PHF1) is essential in epigenetic regulation and genome maintenance. Here we show that the Tudor domain of human PHF1 binds to histone H3 trimethylated at Lys36 (H3K36me3). We report a 1.9-Å resolution crystal structure of the Tudor domain in complex with H3K36me3 and describe the molecular me...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.2435
更新日期:2012-12-01 00:00:00
abstract::Despite growing appreciation of the importance of long noncoding RNAs (lncRNAs) in normal physiology and disease, our knowledge of cancer-related lncRNAs remains limited. By repurposing microarray probes, we constructed expression profiles of 10,207 lncRNA genes in approximately 1,300 tumors over four different cancer...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.2591
更新日期:2013-07-01 00:00:00
abstract::Gene expression is inherently stochastic; precise gene regulation by transcription factors is important for cell-fate determination. Many transcription factors regulate their own expression, suggesting that autoregulation counters intrinsic stochasticity in gene expression. Using a new strategy, cotranslational activa...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.2336
更新日期:2012-08-01 00:00:00
abstract::The discovery of the three eukaryotic nuclear RNA polymerases paved the way for serious biochemical investigations of eukaryotic transcription and the identification of eukaryotic transcription factors. Here we describe this adventure from our vantage point, with a focus on the hunt for factors that regulate elongatio...
journal_title:Nature structural & molecular biology
pub_type: 历史文章,杂志文章,评审
doi:10.1038/s41594-019-0283-1
更新日期:2019-09-01 00:00:00