Abstract:
:In vertebrates, unfertilized eggs (or mature oocytes) are arrested at metaphase of meiosis II by a cytoplasmic activity called cytostatic factor (CSF). The classical Mos-MAPK pathway has long been implicated in CSF arrest of vertebrate eggs, but exactly how it exerts CSF activity remains unclear. Recently, Erp1 (also called Emi2), an inhibitor of the anaphase-promoting complex/cyclosome (APC/C) required for degradation of the mitotic regulator cyclin B (ref. 5), has also been shown to be a component of CSF in both Xenopus and mice. Erp1 is destroyed on fertilization or egg activation, like Mos. However, despite these similarities the Mos-MAPK (mitogen-activated protein kinase) pathway and Erp1 are thought to act rather independently in CSF arrest. Here, we show that p90rsk, the kinase immediately downstream from Mos-MAPK, directly targets Erp1 for CSF arrest in Xenopus oocytes. Erp1 is synthesized immediately after meiosis I, and the Mos-MAPK pathway or p90rsk is essential for CSF arrest by Erp1. p90rsk can directly phosphorylate Erp1 on Ser 335/Thr 336 both in vivo and in vitro, and upregulates both Erp1 stability and activity. Erp1 is also present in early embryos, but has little CSF activity owing, at least in part, to the absence of p90rsk activity. These results clarify the direct link of the classical Mos-MAPK pathway to Erp1 in meiotic arrest of vertebrate oocytes.
journal_name
Naturejournal_title
Natureauthors
Inoue D,Ohe M,Kanemori Y,Nobui T,Sagata Ndoi
10.1038/nature05688subject
Has Abstractpub_date
2007-04-26 00:00:00pages
1100-4issue
7139eissn
0028-0836issn
1476-4687pii
nature05688journal_volume
446pub_type
杂志文章相关文献
NATURE文献大全abstract::Colorectal cancer (CRC) is a heterogeneous disease of the intestinal epithelium that is characterized by the accumulation of mutations and a dysregulated immune response. Up to 90% of disease risk is thought to be due to environmental factors such as diet, which is consistent with a growing body of literature that des...
journal_title:Nature
pub_type: 杂志文章,评审
doi:10.1038/s41586-020-2729-3
更新日期:2020-09-01 00:00:00
abstract::The high-resolution seismic imaging of subducted oceanic slabs has become a powerful tool for reconstructing palaeogeography. The images can now be interpreted quantitatively by comparison with models of the general circulation of the Earth's mantle. Here we use a three-dimensional spherical computer model of mantle c...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/35012586
更新日期:2000-05-18 00:00:00
abstract::Classical crystallography can determine structures as complicated as multi-component ribosomal assemblies with atomic resolution, but is inadequate for disordered systems--even those as simple as water ice--that occupy the complex middle ground between liquid-like randomness and crystalline periodic order. Correlated ...
journal_title:Nature
pub_type: 杂志文章,评审
doi:10.1038/nature14453
更新日期:2015-05-21 00:00:00
abstract::The sense of smell is highly evolved in mammals, allowing discrimination between a vast number of odorants, with detection thresholds as low as 10(-17) M (ref. 1). Although several features of mammalian olfactory transduction have been revealed by biochemical and molecular biological studies, the odorant-induced membr...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/366283a0
更新日期:1993-11-18 00:00:00
abstract:: ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/d41586-018-07209-z
更新日期:2018-11-01 00:00:00
abstract::Deuterostomes are a remarkably diverse super-phylum, including not only the chordates (to which we belong) but groups as disparate as the echinoderms and the hemichordates. The phylogeny of deuterostomes is now achieving some degree of stability, especially on account of new molecular data, but this leaves as conjectu...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature02648
更新日期:2004-07-22 00:00:00
abstract::It is thought that immunity depends on naive CD4 T cells that proliferate in response to microbial antigens, differentiate into memory cells that produce anti-microbial lymphokines, and migrate to sites of infection. Here we use immunohistology to enumerate individual naive CD4 T cells, specific for a model antigen, i...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/35065111
更新日期:2001-03-01 00:00:00
abstract::All forms of locomotion are repetitive motor activities that require coordinated bilateral activation of muscles. The executive elements of locomotor control are networks of spinal neurons that determine gait pattern through the sequential activation of motor-neuron pools on either side of the body axis. However, litt...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature12286
更新日期:2013-08-01 00:00:00
abstract::This corrects the article DOI: 10.1038/nature21725. ...
journal_title:Nature
pub_type: 杂志文章,已发布勘误
doi:10.1038/nature23659
更新日期:2017-08-31 00:00:00
abstract::A variety of observations indicate that mid-ocean ridges produce less crust at spreading rates below 20 mm yr(-1) (refs 1-3), reflecting changes in fundamental ridge processes with decreasing spreading rate. The nature of these changes, however, remains uncertain, with end-member explanations being decreasing shallow ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature03140
更新日期:2004-12-09 00:00:00
abstract::Mitogen-activated protein kinases, MAP kinases or ERKs (extracellular signal-regulated kinases) are rapidly stimulated by growth-promoting factors acting on a variety of cell-surface receptors. In turn, ERKs phosphorylate and regulate key intracellular enzymes and transcription factors involved in the control of cellu...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/369418a0
更新日期:1994-06-02 00:00:00
abstract::The nature and length scales of charge screening in complex oxides are fundamental to a wide range of systems, spanning ceramic voltage-dependent resistors (varistors), oxide tunnel junctions and charge ordering in mixed-valence compounds. There are wide variations in the degree of charge disproportionation, length sc...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature00977
更新日期:2002-09-26 00:00:00
abstract::Large-scale systematic sequencing has generally depended on the availability of an ordered library of large-insert bacterial or viral genomic clones for the organism under study. The generation of these large insert libraries, and the location of each clone on a genome map, is a laborious and time-consuming process. I...
journal_title:Nature
pub_type: 杂志文章
doi:
更新日期:1997-05-29 00:00:00
abstract::Most sensory information destined for the neocortex is relayed through the thalamus, where considerable transformation occurs1,2. One means of transformation involves interactions between excitatory thalamocortical neurons that carry data to the cortex and inhibitory neurons of the thalamic reticular nucleus (TRN) tha...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/s41586-020-2512-5
更新日期:2020-07-01 00:00:00
abstract::A long-standing hypothesis on tumorigenesis is that cell division failure, generating genetically unstable tetraploid cells, facilitates the development of aneuploid malignancies. Here we test this idea by transiently blocking cytokinesis in p53-null (p53-/-) mouse mammary epithelial cells (MMECs), enabling the isolat...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature04217
更新日期:2005-10-13 00:00:00
abstract::Thyroid hormones and retinoic acid function through nuclear receptors that belong to the steroid/thyroid-hormone receptor superfamily. Thyroid hormone receptors (TRs) and retinoic acid receptors (RARs) require auxiliary nuclear proteins for efficient DNA binding. Here we report that retinoid X receptors RXR alpha is o...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/355441a0
更新日期:1992-01-30 00:00:00
abstract::The regulation of intracellular pH (pHi) is essential for normal cell function, and controlled changes in pHi may play a central role in cell activation. Sodium-dependent Cl-HCO3 exchange is the dominant mechanism of pHi regulation in the invertebrate cells examined, and also occurs in mammalian cells. The transporter...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/332262a0
更新日期:1988-03-17 00:00:00
abstract::Seismological studies have revealed that a complex texture or heterogeneity exists in the Earth's inner core and at the boundary between core and mantle. These studies highlight the importance of understanding the properties of iron when modelling the composition and dynamics of the core and the interaction of the cor...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/35087559
更新日期:2001-08-02 00:00:00
abstract::Chondrules are millimetre-sized spherules (mostly silicate) that dominate the texture of primitive meteorites. Their formation mechanism is debated, but their sheer abundance suggests that the mechanism was both energetic and ubiquitous in the early inner Solar System. The processes suggested--such as shock waves, sol...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature04834
更新日期:2006-05-25 00:00:00
abstract::The success of cisplatin in cancer chemotherapy derives from its ability to crosslink DNA and alter the structure. Most cisplatin-DNA adducts are intrastrand d(GpG) and d(ApG) crosslinks, which unwind and bend the duplex to facilitate the binding of proteins that contain one or more high-mobility group (HMG) domains. ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/377649a0
更新日期:1995-10-19 00:00:00
abstract::Group I and II introns are mobile elements that propagate by insertion into different genes. Some introns of both types self-splice in vitro by transesterification reactions catalysed by the intron RNA. These transesterifications are reversible, and it has been suggested that reverse splicing followed by reverse trans...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/354164a0
更新日期:1991-11-14 00:00:00
abstract::Crossover recombination events between homologous chromosomes are required to form chiasmata, temporary connections between homologues that ensure their proper segregation at meiosis I. Despite this requirement for crossovers and an excess of the double-strand DNA breaks that are the initiating events for meiotic reco...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature12577
更新日期:2013-10-31 00:00:00
abstract::Bacterial toxins represent a vast reservoir of biochemical diversity that can be repurposed for biomedical applications. Such proteins include a group of predicted interbacterial toxins of the deaminase superfamily, members of which have found application in gene-editing techniques1,2. Because previously described cyt...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/s41586-020-2477-4
更新日期:2020-07-01 00:00:00
abstract::Dynamic access to genetic information is central to organismal development and environmental response. Consequently, genomic processes must be regulated by mechanisms that alter genome function relatively rapidly. Conventional chromatin immunoprecipitation (ChIP) experiments measure transcription factor occupancy, but...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature10985
更新日期:2012-04-11 00:00:00
abstract::ELLIPTICAL galaxies acting as gravitational lenses occasionally produce spectacular images-Einstein rings-of distant objects. Giant arcs(1) and radio rings(2) have been observed. A wide variety of image morphologies is possible, the generation of which is qualitatively understood in terms of large magnifications at ca...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/344043a0
更新日期:1990-03-01 00:00:00
abstract::During an immune response, hypermutation of immunoglobulin genes in B cells proliferating within germinal centres (GCs) generates variant antibodies that react with higher affinity against either foreign or self antigens. Several experiments suggest that self-reactive B cells may be censored at this stage of the immun...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/375334a0
更新日期:1995-05-25 00:00:00
abstract::p60src, the transforming protein of Rous sarcoma virus (RSV), is a protein kinase that has a strict specificity for tyrosine. The phosphorylation of cellular proteins by p60src (ref. 4) results in transformation. Recently, Barker and Dayhoff discovered that residues 259-485 of p60src have 22% sequence identity with re...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/310589a0
更新日期:1984-08-16 00:00:00
abstract::Growing populations and agricultural intensification have led to raised riverine nitrogen (N) loads, widespread oxygen depletion in coastal zones (coastal hypoxia)1 and increases in the incidence of algal blooms.Although recent work has suggested that individual wetlands have the potential to improve water quality2-9,...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/s41586-020-03042-5
更新日期:2020-12-01 00:00:00
abstract::During early mammalian development, as the pluripotent cells that give rise to all of the tissues of the body proliferate and expand in number, they pass through transition states marked by a stepwise restriction in developmental potential and by changes in the expression of key regulatory genes. Recent findings show ...
journal_title:Nature
pub_type: 杂志文章,评审
doi:10.1038/nature09228
更新日期:2010-06-10 00:00:00
abstract::Generalization is a cognitive ability that allows similar stimuli along a given dimension to be treated as equivalents. Insects exhibit high levels of visual generalization. Honeybees trained to recognize complex visual stimuli on the basis of a single feature generalize their choice to novel stimuli sharing that comm...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature02594
更新日期:2004-06-17 00:00:00