abstract：:Neurofibromatosis type 1 (NF1) is a prevalent genetic disorder that affects growth properties of neural-crest-derived cell populations. In addition, approximately one-half of NF1 patients exhibit learning disabilities. To characterize NF1 function both in vitro and in vivo, we circumvent the embryonic lethality of NF1...

journal_title：Genes & development

authors： Zhu Y,Romero MI,Ghosh P,Ye Z,Charnay P,Rushing EJ,Marth JD,Parada LF

更新日期：2001-04-01 00:00:00

abstract：:The Drosophila brain tumor (brat) gene encodes a member of the conserved NHL family of proteins, which appear to regulate differentiation and growth in a variety of organisms. One of the founding family members, Caenorhabditis elegans LIN-41, is thought to control posttranscriptional gene expression. However, the mech...

journal_title：Genes & development

authors： Sonoda J,Wharton RP

更新日期：2001-03-15 00:00:00

abstract：:Alteration of nucleosomes by ATP-dependent remodeling complexes represents a critical step in the regulation of transcription. The human SWI/SNF (hSWI/SNF) family is composed of complexes that contain either Brg1 or hBrm as the central ATPase; however, these separate complexes have not been compared functionally. Here...

journal_title：Genes & development

authors： Sif S,Saurin AJ,Imbalzano AN,Kingston RE

更新日期：2001-03-01 00:00:00

abstract：:DinI is a recently described negative regulator of the SOS response in Escherichia coli. Here we show that it physically interacts with RecA and prevents the binding of single-stranded DNA to RecA, which is required for the activation of the latter. DinI also displaces ssDNA from a stable RecA-DNA cofilament, thus eli...

journal_title：Genes & development

authors： Voloshin ON,Ramirez BE,Bax A,Camerini-Otero RD

更新日期：2001-02-15 00:00:00

abstract：:We report the discovery of mRNA 5'-leader trans-splicing (SL trans-splicing) in the chordates. In the ascidian protochordate Ciona intestinalis, the mRNAs of at least seven genes undergo trans-splicing of a 16-nucleotide 5'-leader apparently derived from a 46-nucleotide RNA that shares features with previously charact...

journal_title：Genes & development

authors： Vandenberghe AE,Meedel TH,Hastings KE

更新日期：2001-02-01 00:00:00

abstract：:The proteasome is well known for its regulation of the cell cycle and degradation of mis-folded proteins, yet many of its functions are still unknown. We show that RPN11, a gene encoding a subunit of the regulatory cap of the proteasome, is required for UV-stimulated activation of Gcn4p target genes, but is dispensabl...

journal_title：Genes & development

authors： Stitzel ML,Durso R,Reese JC

更新日期：2001-01-15 00:00:00

abstract：:Classical embryology has provided a clear view of the timing and hormonal cues that govern sexual differentiation. Molecular biology has added important details to this picture. The cloning of SRY, MIS, and INSL3 provide insight into the molecular signals that provide important cues at the cellular level. Continued un...

journal_title：Genes & development

authors： Nef S,Parada LF

更新日期：2000-12-15 00:00:00

abstract：:Placental development is profoundly influenced by oxygen (O(2)) tension. Human cytotrophoblasts proliferate in vitro under low O(2) conditions but differentiate at higher O(2) levels, mimicking the developmental transition they undergo as they invade the placental bed to establish the maternal-fetal circulation in viv...

journal_title：Genes & development

authors： Adelman DM,Gertsenstein M,Nagy A,Simon MC,Maltepe E

更新日期：2000-12-15 00:00:00

abstract：:The cytochrome P450 (CYP) gene products such as CYP3A and CYP2B are essential for the metabolism of steroid hormones and xenochemicals including prescription drugs. Nuclear receptor SXR/PXR (steroid and xenobiotic receptor/pregnenolone X receptor) has been shown both biochemically and genetically to activate CYP3A gen...

journal_title：Genes & development

authors： Xie W,Barwick JL,Simon CM,Pierce AM,Safe S,Blumberg B,Guzelian PS,Evans RM

更新日期：2000-12-01 00:00:00

abstract：:The liver X receptors (LXRs) are members of the nuclear hormone receptor superfamily that are bound and activated by oxysterols. These receptors serve as sterol sensors to regulate the transcription of gene products that control intracellular cholesterol homeostasis through catabolism and transport. In this report, we...

journal_title：Genes & development

authors： Repa JJ,Liang G,Ou J,Bashmakov Y,Lobaccaro JM,Shimomura I,Shan B,Brown MS,Goldstein JL,Mangelsdorf DJ

更新日期：2000-11-15 00:00:00

abstract：:Ssn6-Tup1 regulates multiple genes in yeast, providing a paradigm for corepressor functions. Tup1 interacts directly with histones H3 and H4, and mutation of these histones synergistically compromises Ssn6-Tup1-mediated repression. In vitro, Tup1 interacts preferentially with underacetylated isoforms of H3 and H4, sug...

journal_title：Genes & development

authors： Watson AD,Edmondson DG,Bone JR,Mukai Y,Yu Y,Du W,Stillman DJ,Roth SY

更新日期：2000-11-01 00:00:00

abstract：:The Bloom's syndrome gene (BLM) plays a pivotal role in the maintenance of genomic stability in somatic cells. It encodes a DNA helicase (BLM) of the RecQ family, but the exact function of BLM remains elusive. To study this question, we have cloned the BLM homolog of the frog Xenopus laevis (xBLM) and have raised anti...

journal_title：Genes & development

authors： Liao S,Graham J,Yan H

更新日期：2000-10-15 00:00:00

abstract：:Translation initiation factor 2 (eIF2) bound to GTP transfers the initiator methionyl tRNA to the 40S ribosomal subunit. The eIF5 stimulates GTP hydrolysis by the eIF2/GTP/Met-tRNA(i)(Met) ternary complex on base-pairing between Met-tRNA(i)(Met) and the start codon. The eIF2, eIF5, and eIF1 all have been implicated in...

journal_title：Genes & development

authors： Asano K,Clayton J,Shalev A,Hinnebusch AG

更新日期：2000-10-01 00:00:00

abstract：:Inactivation of cyclin B-Cdc2 kinase at the exit from M phase depends on the specific proteolysis of the cyclin B subunit, whereas the Cdc2 subunit remains present at nearly constant levels throughout the cell cycle. It is unknown how Cdc2 escapes degradation when cyclin B is destroyed. In Xenopus egg extracts that re...

journal_title：Genes & development

authors： Nishiyama A,Tachibana K,Igarashi Y,Yasuda H,Tanahashi N,Tanaka K,Ohsumi K,Kishimoto T

更新日期：2000-09-15 00:00:00

abstract：:The Caenorhabditis elegans caudal homolog, pal-1, is required for neurogenesis in the male tail. We show that expression of pal-1 in the postembryonic neuroblast cell V6 can be initiated by two alternate pathways. One pathway, acting in wild type, requires a regulatory element in the fifth pal-1 intron. The other path...

journal_title：Genes & development

authors： Zhang H,Emmons SW

更新日期：2000-09-01 00:00:00

abstract：:Gastrulation in mice is associated with the start of extreme proliferation and differentiation. The potential cost to the embryo of a very rapid proliferation rate is a high production of damaged cells. We demonstrate a novel surveillance mechanism for the elimination of cells damaged by ionizing radiation during mous...

journal_title：Genes & development

authors： Heyer BS,MacAuley A,Behrendtsen O,Werb Z

更新日期：2000-08-15 00:00:00

abstract：:The initial steps of double-stranded break (DSB) repair by homologous recombination mediated by the 5'-3' exonuclease/annealing protein pairs, RecE/RecT and Redalpha/Redbeta, were analyzed. Recombination was RecA-independent and required the expression of both components of an orthologous pair, even when the need for ...

journal_title：Genes & development

authors： Muyrers JP,Zhang Y,Buchholz F,Stewart AF

更新日期：2000-08-01 00:00:00

abstract：:Sex determination is regulated by diverse pathways. Although upstream signals vary, a cysteine-rich DNA-binding domain (the DM motif) is conserved within downstream transcription factors of Drosophila melanogaster (Doublesex) and Caenorhabditis elegans (MAB-3). Vertebrate DM genes have likewise been identified and, re...

journal_title：Genes & development

authors： Zhu L,Wilken J,Phillips NB,Narendra U,Chan G,Stratton SM,Kent SB,Weiss MA

更新日期：2000-07-15 00:00:00

abstract：:During embryonic development in vertebrates, the endoderm becomes patterned along the anteroposterior axis to produce distinct derivatives. How this regulation is controlled is not well understood. We report that the zebrafish hairy/enhancer of split [E(spl)]-related gene her5 plays a critical role in this process. At...

journal_title：Genes & development

authors： Bally-Cuif L,Goutel C,Wassef M,Wurst W,Rosa F

更新日期：2000-07-01 00:00:00

abstract：:The assembly and disassembly of protein complexes at replication origins play a crucial role in the regulation of chromosomal DNA replication. The sequential binding of the origin recognition complex (ORC), Cdc6, and the minichromosome maintenance (MCM/P1) proteins produces a licensed replication origin. Before the in...

journal_title：Genes & development

authors： Jares P,Blow JJ

更新日期：2000-06-15 00:00:00

abstract：:Proximal-distal outgrowth of the vertebrate limb bud is regulated by the apical ectodermal ridge (AER), which forms at an invariant position along the dorsal-ventral (D/V) axis of the embryo. We have studied the genetic and cellular events that regulate AER formation in the mouse. In contrast to implications from prev...

journal_title：Genes & development

authors： Kimmel RA,Turnbull DH,Blanquet V,Wurst W,Loomis CA,Joyner AL

更新日期：2000-06-01 00:00:00

abstract：:One of the most common microsatellites in eukaryotes consists of tandem arrays of the dinucleotide GT. Although the study of the instability of such repetitive DNA has been extremely fruitful over the last decade, no biological function has been demonstrated for these sequences. We investigated the genetic behavior of...

journal_title：Genes & development

authors： Gendrel CG,Boulet A,Dutreix M

更新日期：2000-05-15 00:00:00

abstract：:Stomata are specialized cellular structures in the epidermis of aerial plant organs that control gas exchange (H(2)O release and CO(2) uptake) between leaves and the atmosphere by modulating the aperture of a pore flanked by two guard cells. Stomata are nonrandomly distributed, and their density is controlled by endog...

journal_title：Genes & development

authors： Berger D,Altmann T

更新日期：2000-05-01 00:00:00

abstract：:Medulloblastomas are among the most common malignancies in childhood, and they are associated with substantial mortality and morbidity. The molecular pathogenesis as well as the ontogeny of these neoplasms is still poorly understood. We have generated a mouse model for medulloblastoma by Cre-LoxP-mediated inactivation...

journal_title：Genes & development

authors： Marino S,Vooijs M,van Der Gulden H,Jonkers J,Berns A

更新日期：2000-04-15 00:00:00

abstract：:Restricted expression of a mouse Vasa homolog gene (Mvh) expression is first detected in primordial germ cells (PGCs) after colonization of the genital ridges. Subsequently, Mvh is maintained until postmeiotic germ cells are formed. Here, we demonstrate that male mice homozygous for a targeted mutation of Mvh exhibit ...

journal_title：Genes & development

authors： Tanaka SS,Toyooka Y,Akasu R,Katoh-Fukui Y,Nakahara Y,Suzuki R,Yokoyama M,Noce T

更新日期：2000-04-01 00:00:00

abstract：:The p53 tumor suppressor activates either cell cycle arrest or apoptosis in response to cellular stress. Mouse embryo fibroblasts (MEFs) provide a powerful primary cell system to study both p53-dependent pathways. Specifically, in response to DNA damage, MEFs undergo p53-dependent G(1) arrest, whereas MEFs expressing ...

journal_title：Genes & development

authors： Attardi LD,Reczek EE,Cosmas C,Demicco EG,McCurrach ME,Lowe SW,Jacks T

更新日期：2000-03-15 00:00:00

abstract：:Myxococcus xanthus fruiting body development is induced by amino acid limitation. The decision to grow or develop is established by the RelA-dependent stringent response and A-signaling. We identified two new members of this regulatory hierarchy, socE and the C-signaling gene csgA. SocE depletion arrests growth and in...

journal_title：Genes & development

authors： Crawford EW Jr,Shimkets LJ

更新日期：2000-02-15 00:00:00

abstract：:Chk2/hcds1, the human homolog of the Saccharomyces cerevisiae RAD53/SPK1 and Schizosaccharomyces pombe cds1 DNA damage checkpoint genes, encodes a protein kinase that is post-translationally modified after DNA damage. Like its yeast homologs, the Chk2/hCds1 protein phosphorylates Cdc25C in vitro, suggesting that it ar...

journal_title：Genes & development

authors： Chehab NH,Malikzay A,Appel M,Halazonetis TD

更新日期：2000-02-01 00:00:00

abstract：:We have shown that Wnt signals are necessary and sufficient for neural crest cells to adopt pigment cell fates. nacre, a zebrafish homolog of MITF, is required for pigment cell differentiation. We isolated a promoter region of nacre that contains Tcf/Lef binding sites, which can mediate Wnt responsiveness. This promot...

journal_title：Genes & development

authors： Dorsky RI,Raible DW,Moon RT

更新日期：2000-01-15 00:00:00

abstract：:Abcission, the natural shedding of leaves, flowers and fruits, is a fundamental component of plant development. Abscission is a highly regulated process that occurs at distinct zones of cells that undergo enlargement and subsequent separation. Although some components of abscission, including accumulation of the hormo...

journal_title：Genes & development

authors： Jinn TL,Stone JM,Walker JC

更新日期：2000-01-01 00:00:00

abstract：:Antigenic stimulation of the B-cell receptor (BCR) is a central event in the immune response. In contrast, antigen bound to IgG negatively regulates signals from the BCR by cross-linking it to the inhibitory receptor FcgammaRIIB. Here we show that upon cross-linking of BCR or BCR with FcgammaRIIB, the rasGAP-associate...

journal_title：Genes & development

authors： Yamanashi Y,Tamura T,Kanamori T,Yamane H,Nariuchi H,Yamamoto T,Baltimore D

更新日期：2000-01-01 00:00:00

abstract：:The association of transcription corepressors SMRT and N-CoR with retinoid and thyroid receptors results in suppression of basal transcriptional activity. A key event in nuclear receptor signaling is the hormone-dependent release of corepressor and the recruitment of coactivator. Biochemical and structural studies hav...

journal_title：Genes & development

authors： Nagy L,Kao HY,Love JD,Li C,Banayo E,Gooch JT,Krishna V,Chatterjee K,Evans RM,Schwabe JW

更新日期：1999-12-15 00:00:00

abstract：:We report a new role for Wnt signaling in the vertebrate embryo: the induction of neural tissue from ectoderm. Early expression of mouse wnt8, Xwnt8, beta-catenin, or dominant-negative GSK3 induces the expression of neural-specific markers and inhibits the expression of Bmp4 in Xenopus ectoderm. We show that Wnt8, but...

journal_title：Genes & development

authors： Baker JC,Beddington RS,Harland RM

更新日期：1999-12-01 00:00:00

abstract：:Activated transcription by RNA polymerase II (Pol II) requires coactivators, one of which is the SRB/mediator. Whereas Srb4, an essential subunit of the SRB/mediator, is broadly required for Pol II transcription in yeast, we have shown that it is dispensable for the transcriptional activation of some genes. Here, we s...

journal_title：Genes & development

authors： Lee DK,Kim S,Lis JT

更新日期：1999-11-15 00:00:00

abstract：:The Hedgehog (Hh) family of secreted proteins controls many aspects of animal development. In Drosophila, Hh transduces its signal via Cubitus interruptus (Ci), a transcription factor present in two forms: a full-length activator and a carboxy-terminally truncated repressor that is derived from the full-length form by...

journal_title：Genes & development

authors： Wang G,Wang B,Jiang J

更新日期：1999-11-01 00:00:00

abstract：:In the yeast Saccharomyces cerevisiae, sequence-specific DNA binding by the origin recognition complex (ORC) is responsible for selecting origins of DNA replication. In metazoans, origin selection is poorly understood and it is unknown whether specific DNA binding by metazoan ORC controls replication. To address this ...

journal_title：Genes & development

authors： Austin RJ,Orr-Weaver TL,Bell SP

更新日期：1999-10-15 00:00:00

abstract：:We describe evidence that a regulatory B subunit of protein phosphatase 2A (PP2A) positively regulates an RTK-Ras-MAP kinase signaling cascade during Caenorhabditis elegans vulval induction. Although reduction of sur-6 PP2A-B function causes few vulval induction defects in an otherwise wild-type background, sur-6 PP2A...

journal_title：Genes & development

authors： Sieburth DS,Sundaram M,Howard RM,Han M

更新日期：1999-10-01 00:00:00

abstract：:All multisubunit DNA-dependent RNA polymerases (RNAP) are zinc metalloenzymes, and at least two zinc atoms are present per enzyme molecule. RNAP residues involved in zinc binding and the functional role of zinc ions in the transcription mechanism or RNAP structure are unknown. Here, we locate four cysteine residues in...

journal_title：Genes & development

authors： Markov D,Naryshkina T,Mustaev A,Severinov K

更新日期：1999-09-15 00:00:00

abstract：:Far1p is a bifunctional protein that is required to arrest the cell cycle and to establish cell polarity during yeast mating. Far1p is localized predominantly in the nucleus but accumulates in the cytoplasm in cells exposed to pheromones. Here we show that Far1p functions in both subcellular compartments: nuclear Far1...

journal_title：Genes & development

authors： Blondel M,Alepuz PM,Huang LS,Shaham S,Ammerer G,Peter M

更新日期：1999-09-01 00:00:00

abstract：:We demonstrate here that the previously described bacterial promoter upstream element (UP element) consists of two distinct subsites, each of which, by itself, can bind the RNA polymerase holoenzyme alpha subunit carboxy-terminal domain (RNAP alphaCTD) and stimulate transcription. Using binding-site-selection experime...

journal_title：Genes & development

authors： Estrem ST,Ross W,Gaal T,Chen ZW,Niu W,Ebright RH,Gourse RL

更新日期：1999-08-15 00:00:00