Abstract:
:The WAVE regulatory complex (WRC) transmits information from the Rac GTPase to the actin nucleator Arp2/3 complex. We have reconstituted recombinant human and Drosophila WRC in several forms and shown that they are inactive toward Arp2/3 complex but can be activated by Rac in a nucleotide-dependent fashion. Our observations identify core components needed for WAVE inhibition, reconcile contradictory existing mechanisms and reveal common regulatory principles for the WAVE/WASP family of proteins.
journal_name
Nat Struct Mol Bioljournal_title
Nature structural & molecular biologyauthors
Ismail AM,Padrick SB,Chen B,Umetani J,Rosen MKdoi
10.1038/nsmb.1587subject
Has Abstractpub_date
2009-05-01 00:00:00pages
561-3issue
5eissn
1545-9993issn
1545-9985pii
nsmb.1587journal_volume
16pub_type
杂志文章abstract::Induced transcription through CAG repeats in human cells increases repeat contraction approximately 15-fold in both confluent and proliferating cells. Repeats are stabilized against contraction by siRNA knockdown of MSH2, MSH3 or XPA, but not by knockdown of MSH6, XPC or FEN1. These results define a pathway for CAG.CT...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb1042
更新日期:2006-02-01 00:00:00
abstract::The ability of barrier-to-autointegration factor (BAF) to bind and bridge DNA in a sequence-independent manner is crucial for its role in retroviral integration and a variety of cellular processes. To better understand this behavior, we solved the crystal structure of BAF bound to DNA. The structure reveals that BAF b...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb989
更新日期:2005-10-01 00:00:00
abstract::The major structural components of HIV-1 are encoded as a single polyprotein, Gag, which is sufficient for virus particle assembly. Initially, Gag forms an approximately spherical shell underlying the membrane of the immature particle. After proteolytic maturation of Gag, the capsid (CA) domain of Gag reforms into a c...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb785
更新日期:2004-07-01 00:00:00
abstract::Histones have two structurally and functionally distinct domains: globular domains forming the nucleosomal core around which DNA is wrapped and unstructured tails protruding from the nucleosomal core. Whereas post-translational modifications (PTMs) in histone tails are well studied, much less is currently known about ...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.2581
更新日期:2013-06-01 00:00:00
abstract::The N-terminal acetylation of Sir3 is essential for heterochromatin establishment and maintenance in yeast, but its mechanism of action is unknown. The crystal structure of the N-terminally acetylated BAH domain of Saccharomyces cerevisiae Sir3 bound to the nucleosome core particle reveals that the N-terminal acetylat...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.2641
更新日期:2013-09-01 00:00:00
abstract::The highly contagious measles virus infects millions of individuals worldwide, causing serious disease in children of developing countries. Infection is initiated by attachment of the measles virus hemagglutinin (MV-H), a glycoprotein anchored to the virus envelope, to the host cell receptors CD46 or signaling lymphoc...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1726
更新日期:2010-01-01 00:00:00
abstract::The choice of codons can influence local translation kinetics during protein synthesis. Whether codon preference is linked to cotranslational regulation of polypeptide folding remains unclear. Here, we derive a revised translational efficiency scale that incorporates the competition between tRNA supply and demand. App...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.2466
更新日期:2013-02-01 00:00:00
abstract::We show that convergent transcription induces transcriptional gene silencing (TGS) in trans for both fission yeast and mammalian cells. This method has advantages over existing strategies to induce gene silencing. Previous studies in fission yeast have characterized TGS as a cis-specific process involving RNA interfer...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.2392
更新日期:2012-11-01 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::The histone variant macroH2A1 regulates gene expression important for differentiation, stem-cell reprogramming and tumor suppression. Here, we demonstrate that in primary human cells, macroH2A1 participates in two physically and functionally distinct types of chromatin marked by either H3K27me3 or nine histone acetyla...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.2903
更新日期:2014-11-01 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::Gating the ion-permeation pathway in K(+) channels requires conformational changes in activation and inactivation gates. Here we have investigated the structural alterations associated with pH-dependent inactivation gating of the KcsA-Kv1.3 K(+) channel using solid-state NMR spectroscopy in direct reference to electro...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1430
更新日期:2008-06-01 00:00:00
abstract::Flavin-containing monooxygenases (FMOs) are ubiquitous in all domains of life and metabolize a myriad of xenobiotics, including toxins, pesticides and drugs. However, despite their pharmacological importance, structural information remains bereft. To further our understanding behind their biochemistry and diversity, w...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/s41594-019-0347-2
更新日期:2020-01-01 00:00:00
abstract::Mg-ADP release is considered to be a crucial process for the regulation and motility of kinesin. To gain insight into the structural basis of this process, we solved the atomic structures of kinesin superfamily protein-1A (KIF1A) during and after Mg(2+) release. On the basis of new structural and mutagenesis data, we ...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1487
更新日期:2008-10-01 00:00:00
abstract::Brr2 is a DExD/H-box helicase responsible for U4/U6 unwinding during spliceosomal activation. Brr2 contains two helicase-like domains, each of which is followed by a Sec63 domain with unknown function. We determined the crystal structure of the second Sec63 domain, which unexpectedly resembles domains 4 and 5 of DNA h...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1625
更新日期:2009-07-01 00:00:00
abstract::Although t-loops protect telomeres, they are at risk of cleavage by Holliday junction (HJ) resolvases if branch migration converts the three-way t-loop junction into four-way HJs. T-loop cleavage is repressed by the TRF2 basic domain, which binds three- and four-way junctions and protects HJs in vitro. By replacing th...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.3451
更新日期:2017-09-01 00:00:00
abstract::Faithful chromosome segregation requires that the sister chromatids be disjoined completely. Defective disjunction can lead to the persistence of histone-free threads of DNA known as ultra-fine bridges (UFBs) that connect the separating sister DNA molecules during anaphase. UFBs arise at specific genomic loci and can ...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/s41594-018-0123-8
更新日期:2018-09-01 00:00:00
abstract::Platelet-activating-factor receptor (PAFR) responds to platelet-activating factor (PAF), a phospholipid mediator of cell-to-cell communication that exhibits diverse physiological effects. PAFR is considered an important drug target for treating asthma, inflammation and cardiovascular diseases. Here we report crystal s...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/s41594-018-0068-y
更新日期:2018-06-01 00:00:00
abstract:: ...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/s41594-018-0167-9
更新日期:2018-12-01 00:00:00
abstract::The iota toxin produced by Clostridium perfringens type E is a binary toxin comprising two independent polypeptides: Ia, an ADP-ribosyltransferase, and Ib, which is involved in cell binding and translocation of Ia across the cell membrane. Here we report cryo-EM structures of the translocation channel Ib-pore and its ...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/s41594-020-0388-6
更新日期:2020-03-01 00:00:00
abstract::Although DNA replication is a fundamental aspect of biology, it is not known what determines where DNA replication starts and stops in the human genome. We directly identified and quantitatively compared sites of replication initiation and termination in untransformed human cells. We found that replication preferentia...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/s41594-018-0171-0
更新日期:2019-01-01 00:00:00
abstract::Aquaporin (AQP) folding in the endoplasmic reticulum is characterized by two distinct pathways of membrane insertion that arise from divergent residues within the second transmembrane segment. We now show that in AQP1 these residues (Asn49 and Lys51) interact with Asp185 at the C terminus of TM5 to form a polar, quate...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb1275
更新日期:2007-08-01 00:00:00
abstract::Advances in structure determination of the bacterial and eukaryotic transcription machinery have led to a marked increase in the understanding of the mechanism of transcription. Models for the specific assembly of the RNA polymerase II transcription machinery at a promoter, conformational changes that occur during ini...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章,评审
doi:10.1038/nsmb763
更新日期:2004-05-01 00:00:00
abstract::Nuclear volume and the number of nuclear pore complexes (NPCs) on the nucleus almost double during interphase in dividing cells. How these events are coordinated with the cell cycle is poorly understood, particularly in mammalian cells. We report here, based on newly developed techniques for visualizing NPC formation,...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1878
更新日期:2010-09-01 00:00:00
abstract:: ...
journal_title:Nature structural & molecular biology
pub_type: 评论,信件
doi:10.1038/s41594-018-0145-2
更新日期:2018-11-01 00:00:00
abstract::Complex forms of cellular motility, including cell division, organelle trafficking or signal amplification in the auditory system, require strong coordination of the myosin motors involved. The most basic mechanism of coordination is via direct mechanical interactions of individual motor heads leading to modification ...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb.1820
更新日期:2010-05-01 00:00:00
abstract::Catalysis by members of the RNase H superfamily of enzymes is generally believed to require only two Mg2+ ions that are coordinated by active-site carboxylates. By examining the catalytic process of Bacillus halodurans RNase H1 in crystallo, however, we found that the two canonical Mg2+ ions and an additional K+ faile...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/s41594-018-0099-4
更新日期:2018-08-01 00:00:00
abstract::In mammalian cells, nonsense-mediated messenger RNA decay (NMD) targets newly synthesized nonsense-containing mRNA bound by the cap-binding-protein heterodimer CBP80-CBP20 and at least one exon-junction complex (EJC). An EJC includes the NMD factors Upf3 or Upf3X and Upf2, and Upf2 recruits Upf1. Once this pioneer tra...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章
doi:10.1038/nsmb995
更新日期:2005-10-01 00:00:00
abstract::The core of the neurotransmitter release machinery is formed by SNARE complexes, which bring the vesicle and plasma membranes together and are key for fusion, and by Munc18-1, which controls SNARE-complex formation and may also have a direct role in fusion. In addition, SNARE complex assembly is likely orchestrated by...
journal_title:Nature structural & molecular biology
pub_type: 杂志文章,评审
doi:10.1038/nsmb.1450
更新日期:2008-07-01 00:00:00
abstract::An amendment to this paper has been published and can be accessed via a link at the top of the paper. ...
journal_title:Nature structural & molecular biology
pub_type: 已发布勘误
doi:10.1038/s41594-019-0272-4
更新日期:2019-08-01 00:00:00