abstract：:The gene encoding yeast U6 snRNA that is transcribed by RNA polymerase III (Pol III) contains both a TATA box upstream of the transcription start site and a downstream binding site for the factor TFIIIC. This juxtaposition of elements typical of both Pol II- and Pol III-transcribed genes raises the question of how pol...

journal_title：Genes & development

authors： Roberts S,Colbert T,Hahn S

更新日期：1995-04-01 00:00:00

abstract：:Activated Ras initiates a cascade of sequential phosphorylation events, including the protein kinases Raf, MEK, and MAP kinase. The Let-60 Ras-mediated signal transduction pathway controls vulval induction in Caenorhabditis elegans. Both Lin-45 Raf and Sur-1 MAP kinase have been determined to be essential factors duri...

journal_title：Genes & development

authors： Wu Y,Han M,Guan KL

更新日期：1995-03-15 00:00:00

abstract：:A novel 15-kDa protein, RbfA, has been identified by virtue of its ability to act as a high copy suppressor of a previously characterized dominant cold-sensitive mutation (C23U) in 16S rRNA. RbfA is found associated with free 30S ribosomal subunits, but not with 70S ribosomes or polysomes, and is essential for maximal...

journal_title：Genes & development

authors： Dammel CS,Noller HF

更新日期：1995-03-01 00:00:00

abstract：:The canoemisty1 (cnomis1) mutation was isolated by virtue of its severe rough eye phenotype from approximately 500 fly lines, each harboring a single autosomal insertion of a P element (Bm delta w). Excision of the P element generated a lethal, null allele, cnomis10, together with many revertants with normal eye morph...

journal_title：Genes & development

authors： Miyamoto H,Nihonmatsu I,Kondo S,Ueda R,Togashi S,Hirata K,Ikegami Y,Yamamoto D

更新日期：1995-03-01 00:00:00

abstract：:The timing of asexual fruiting body formation during Aspergillus nidulans colony development is precisely regulated so that conidiophores are typically produced 1-2 mm behind the growing edge of the colony. Mutations in any of four A. nidulans genes, flbB, flbC, flbD, or flbE, result in colonies that are delayed at le...

journal_title：Genes & development

authors： Wieser J,Adams TH

更新日期：1995-02-15 00:00:00

abstract：:The catalytic RNA subunit (M1 RNA) of RNase P from Escherichia coli has been converted to an endoribonuclease that specifically cleaves the mRNA that encodes thymidine kinase (TK) of herpes simplex virus 1 (HSV-1). Covalent attachment to the 3' end of M1 RNA of a sequence complementary to TK mRNA results in very effic...

journal_title：Genes & development

authors： Liu F,Altman S

更新日期：1995-02-15 00:00:00

abstract：:Regulated cell expansion is an important determinant of organ shape in higher plants. The sabre mutation results in abnormal cell expansion in Arabidopsis. There is a shift in the orientation of expansion evident primarily in root cortex cells. The SABRE gene has been cloned and found to encode a novel protein. Reduct...

journal_title：Genes & development

authors： Aeschbacher RA,Hauser MT,Feldmann KA,Benfey PN

更新日期：1995-02-01 00:00:00

abstract：:Diverse developmental processes, such as neuronal growth cone migration and cell shape changes, are mediated by the interactions of cells with the extracellular matrix. We describe here a secreted molecule encoded by the Drosophila masquerade (mas) gene. Total loss of mas function causes defective muscle attachment. T...

journal_title：Genes & development

authors： Murugasu-Oei B,Rodrigues V,Yang X,Chia W

更新日期：1995-01-15 00:00:00

abstract：:The growth suppression function of the retinoblastoma protein (RB) is mediated by its interaction with a variety of cellular proteins. RB contains at least two protein-binding pockets: the large A/B pocket, which interacts with E2F and the D-type cyclins, and the C pocket, which interacts with the nuclear c-Abl tyrosi...

journal_title：Genes & development

authors： Welch PJ,Wang JY

更新日期：1995-01-01 00:00:00

abstract：:The association of proteins with the branch site region during pre-mRNA splicing was probed using a novel methodology to site-specifically modify the pre-mRNA with the photo-reagent benzophenone. Three sets of proteins were distinguished by the kinetics of their associations with pre-mRNAs, by their association with d...

journal_title：Genes & development

authors： MacMillan AM,Query CC,Allerson CR,Chen S,Verdine GL,Sharp PA

更新日期：1994-12-15 00:00:00

abstract：:Deregulated expression of the c-myc proto-oncogene can lead to apoptosis under certain physiological conditions. By introducing a conditionally active Myc allele into primary embryo fibroblasts null for p53, and into fibroblasts without endogenous p53 expression but ectopically expressing a temperature-sensitive p53 a...

journal_title：Genes & development

authors： Wagner AJ,Kokontis JM,Hay N

更新日期：1994-12-01 00:00:00

abstract：:To identify regions of the largest subunit of RNA polymerase that are potentially involved in transcript elongation and termination, we have characterized amino acid substitutions in the beta' subunit of Escherichia coli RNA polymerase that alter expression of reporter genes preceded by terminators in vivo. Terminatio...

journal_title：Genes & development

authors： Weilbaecher R,Hebron C,Feng G,Landick R

更新日期：1994-12-01 00:00:00

abstract：:Sensory organ formation in Drosophila is activated by proneural genes that encode basic-helix-loop-helix (bHLH) transcription factors. These genes are antagonized by hairy and other proline-bHLH proteins. hairy has not been shown to bind to DNA and has been proposed to form inactive heterodimers with proneural activat...

journal_title：Genes & development

authors： Ohsako S,Hyer J,Panganiban G,Oliver I,Caudy M

更新日期：1994-11-15 00:00:00

abstract：:RNase MRP is a ribonucleoprotein endoribonuclease that has been shown to cleave mitochondrial primer RNA sequences from a variety of sources. Most of the RNase MRP activity is found in the nucleus where it plays a role in the processing of 5.8S rRNA. A temperature-conditional point mutation in the yeast RNA component ...

journal_title：Genes & development

authors： Schmitt ME,Clayton DA

更新日期：1994-11-01 00:00:00

abstract：:Expression of HNF-4, a transcription factor in the steroid hormone receptor superfamily, is detected only in the visceral endoderm of mouse embryos during gastrulation and is expressed in certain embryonic tissues from 8.5 days of gestation. To examine the role of HNF-4 during embryonic development, we disrupted the g...

journal_title：Genes & development

authors： Chen WS,Manova K,Weinstein DC,Duncan SA,Plump AS,Prezioso VR,Bachvarova RF,Darnell JE Jr

更新日期：1994-10-15 00:00:00

abstract：:Human TFIIA activity is composed of three subunits (alpha, beta, gamma). Here we report the isolation of a human cDNA clone encoding the gamma-subunit and the reconstitution of TFIIA activity from recombinant polypeptides (holo-TFIIA). Protein-protein interaction analysis established that the beta and gamma subunits o...

journal_title：Genes & development

authors： Sun X,Ma D,Sheldon M,Yeung K,Reinberg D

更新日期：1994-10-01 00:00:00

abstract：:In murine plasmacytoma and human Burkitt's lymphoma cells, one allele of c-myc is translocated into one of the immunoglobulin loci, resulting in a characteristic pattern of deregulated c-myc transcription. Translocation events between c-myc and the IgH locus segregate c-myc and the IgH intron enhancer to different rec...

journal_title：Genes & development

authors： Madisen L,Groudine M

更新日期：1994-09-15 00:00:00

abstract：:Pseudoplasmodia of developing Dictyostelium are organized with anteroposterior polarity. We have isolated CAR4, the gene for a new cell-surface, G protein-linked cAMP receptor. CAR4 mRNA is initially expressed during tip elongation and continues to accumulate into culmination. CAR4 is maximally expressed in pseudoplas...

journal_title：Genes & development

authors： Louis JM,Ginsburg GT,Kimmel AR

更新日期：1994-09-01 00:00:00

abstract：:Using an in vitro system in which a 5' splice site (5'SS) RNA oligo (AAG decreases GUAAGUAdT) is capable of inducing formation of U2/U4/U5/U6 snRNP complex we show that this oligo specifically binds to U4/U5/U6 snRNP and cross-links to U6 snRNA in the absence of U2 snRNP. Moreover, 5'SS RNA oligo bound to U4/U5/U6 snR...

journal_title：Genes & development

authors： Konforti BB,Konarska MM

更新日期：1994-08-15 00:00:00

abstract：:Transcriptional repressors play a key role in establishing localized patterns of gene expression in the early Drosophila embryo. Several different modes of repression have been implicated in previous studies, including competition and direct interference with the transcription complex. Here, we present evidence for "q...

journal_title：Genes & development

authors： Gray S,Szymanski P,Levine M

更新日期：1994-08-01 00:00:00

abstract：:The Drosophila proteins Transformer (Tra) and Transformer2 (Tra2) regulate the sex-specific alternative splicing of Drosophila doublesex (dsx) pre-mRNA by specifically binding to a splicing enhancer (dsx repeat element; dsxRE) located 300 nucleotides (nt) downstream from a female-specific 3' splice site. In this paper...

journal_title：Genes & development

authors： Tian M,Maniatis T

更新日期：1994-07-15 00:00:00

abstract：:The alternatively spliced exon EIIIB is regulated in a cell type-specific manner in the rat fibronectin gene. Splicing of EIIIB into fibronectin mRNA is dependent on sequences in the intron immediately downstream of EIIIB. We show that a short, highly repeated TGCATG motif in this intron is important for cell type-spe...

journal_title：Genes & development

authors： Huh GS,Hynes RO

更新日期：1994-07-01 00:00:00

abstract：:Repression of a-cell specific gene expression in yeast alpha cells requires MAT alpha 2 and MCM1, as well as two global repressors, SSN6 and TUP1. Previous studies demonstrated that nucleosomes positioned adjacent to the alpha 2/MCM1 operator in alpha cells directly contribute to repression. To investigate the possibi...

journal_title：Genes & development

authors： Cooper JP,Roth SY,Simpson RT

更新日期：1994-06-15 00:00:00

abstract：:Cell growth and differentiation are usually antagonistic. Proteins of the basic helix-loop-helix (bHLH) family bind DNA and play important roles in the differentiation of specific cell types. Id proteins heterodimerize with bHLH transcription factors, blocking their activation of lineage-specific gene expression and t...

journal_title：Genes & development

authors： Iavarone A,Garg P,Lasorella A,Hsu J,Israel MA

更新日期：1994-06-01 00:00:00

abstract：:A transgenic mouse model for retinoblastoma was produced previously by directing SV40 T antigen expression to retinal photoreceptor cells using the promoter of the interstitial retinol-binding protein (IRBP) gene. This gene becomes active prior to the terminal differentiation of photoreceptors. Because T antigen-trans...

journal_title：Genes & development

authors： Howes KA,Ransom N,Papermaster DS,Lasudry JG,Albert DM,Windle JJ

更新日期：1994-06-01 00:00:00

abstract：:The incorporation of histone H1 into chromatin during embryogenesis directs the specific repression of the Xenopus oocyte 5S rRNA genes. An increase in histone H1 content specifically restricts TFIIIA-activated transcription, and a decrease in histone H1 within chromatin facilitates the activation of the oocyte 5S rRN...

journal_title：Genes & development

authors： Bouvet P,Dimitrov S,Wolffe AP

更新日期：1994-05-15 00:00:00

abstract：:In the cytoplasm of oocytes and early embryos, addition of poly(A) to mRNAs can activate their translation. We demonstrate that despite many differences between poly(A) addition in the cytoplasm and nucleus, these two forms of polyadenylation may involve identical trans-acting factors. Nuclear polyadenylation requires...

journal_title：Genes & development

authors： Bilger A,Fox CA,Wahle E,Wickens M

更新日期：1994-05-01 00:00:00

abstract：:Natural scrapie has been viewed both as a recessive trait and as a contagious disease modulated by a host locus. To address this conundrum, we determined the structure of the sheep prion protein (PrP) gene, which contains three exons and extends over 20 kb of DNA. In the United States 86.4% of scrapie cases occur in S...

journal_title：Genes & development

authors： Westaway D,Zuliani V,Cooper CM,Da Costa M,Neuman S,Jenny AL,Detwiler L,Prusiner SB

更新日期：1994-04-15 00:00:00

abstract：:A core promoter element called an initiator (Inr) overlaps the transcription start site of numerous mammalian protein-coding genes. In promoters that lack a TATA box, the Inr is functionally analogous to TATA, in that it is capable of directing basal transcription by RNA polymerase II and of determining the precise si...

journal_title：Genes & development

authors： Kaufmann J,Smale ST

更新日期：1994-04-01 00:00:00

abstract：:Dosage compensation in Drosophila occurs by a twofold increase in transcription per copy of X-linked genes in males (XY) compared with females (XX). msl-1 is one of four genes that are essential for dosage compensation in males, and MSL-1 protein is associated specifically with the male X chromosome. To explore the ba...

journal_title：Genes & development

authors： Palmer MJ,Richman R,Richter L,Kuroda MI

更新日期：1994-03-15 00:00:00

abstract：:Irradiation in the G1 phase of the cell cycle delays the onset of DNA synthesis and transiently inhibits the activation of replication origins in mammalian cells. It has been suggested that this inhibition is the result of the loss of torsional tension in the DNA after it has been damaged. Because irradiation causes D...

journal_title：Genes & development

authors： Raghuraman MK,Brewer BJ,Fangman WL

更新日期：1994-03-01 00:00:00

abstract：:The agouti gene regulates the differential production of eumelanin (black or brown) and phaeomelanin (yellow) pigment granules by melanocytes in the hair follicles of mice. The original nonagouti (a) allele, which confers a predominantly black coat color, has been shown to revert to two other more dominant agouti alle...

journal_title：Genes & development

authors： Bultman SJ,Klebig ML,Michaud EJ,Sweet HO,Davisson MT,Woychik RP

更新日期：1994-02-15 00:00:00

abstract：:In vivo experiments have demonstrated that the ribosomal protein L32 of Saccharomyces cerevisiae brings about the inhibition of splicing of the transcript of its own gene through an RNA structure comprised largely of the first exon. We now show that L32, itself, binds specifically to this RNA. Splicing of the RPL32 tr...

journal_title：Genes & development

authors： Vilardell J,Warner JR

更新日期：1994-01-01 00:00:00

abstract：:During development of the somatic macronucleus of Tetrahymena thermophila, the rDNA is excised from its germ-line chromosome, rearranged into a palindrome, and amplified to 10(4) copies. We have identified a cis-acting germ-line mutation, rmm11/6, that prevents amplification of the rDNA in all but approximately 1 in 1...

journal_title：Genes & development

authors： Kapler GM,Blackburn EH

更新日期：1994-01-01 00:00:00

abstract：:To investigate functional differences between RNA polymerases IIA and IIO (Pol IIA and Pol IIO), with hypo- and hyperphosphorylated carboxy-terminal repeat domains (CTDs), respectively, we have visualized the in vivo distributions of the differentially phosphorylated forms of Pol II on Drosophila polytene chromosomes....

journal_title：Genes & development

authors： Weeks JR,Hardin SE,Shen J,Lee JM,Greenleaf AL

更新日期：1993-12-01 00:00:00

abstract：:The myogenic regulatory factor MyoD dimerizes with other positive and negative regulatory factors through a conserved region called the helix-loop-helix (HLH) domain. Using a non-DNA-binding MyoD mutant with a normal HLH domain as a dimerization competitor in gel mobility shift assays in conjunction with various MyoD ...

journal_title：Genes & development

authors： Shirakata M,Friedman FK,Wei Q,Paterson BM

更新日期：1993-12-01 00:00:00

abstract：:We have investigated the DNA-binding, oligomerization, and trans-activation functions of isolated segments of murine p53. We find that p53 has two autonomous DNA-binding regions. One domain, from amino acid 280 to 390, forms stable tetramers and binds DNA nonspecifically. The biological significance, if any, of this D...

journal_title：Genes & development

authors： Wang Y,Reed M,Wang P,Stenger JE,Mayr G,Anderson ME,Schwedes JF,Tegtmeyer P

更新日期：1993-12-01 00:00:00

abstract：:Numerous lines of study have suggested that the Hox genes, encoding putative transcription factors, are key genes in the establishment of the body plan of the mammalian embryo. To examine the role of Hoxa-5 (Hox1.3) gene during development, we have used targeted mutagenesis in embryonic stem cells to produce a strain ...

journal_title：Genes & development

authors： Jeannotte L,Lemieux M,Charron J,Poirier F,Robertson EJ

更新日期：1993-11-01 00:00:00

abstract：:During embryonic development, the two Caenorhabditis elegans HSN motor neurons migrate from their birthplace in the tail to positions near the middle of the embryo. Here, we demonstrate that of all cells that undergo long-range migrations, only the HSNs are affected in animals that lack function of the egl-43 gene. We...

journal_title：Genes & development

authors： Garriga G,Guenther C,Horvitz HR

更新日期：1993-11-01 00:00:00

abstract：:Transcription factor IIA has been shown to interact with the TATA-binding protein and to act early during preinitiation complex formation. The human factor is composed of three subunits (alpha, beta, gamma). A human cDNA clone encoding the largest subunit of TFIIA (alpha) was isolated. The recombinant alpha polypeptid...

journal_title：Genes & development

authors： Ma D,Watanabe H,Mermelstein F,Admon A,Oguri K,Sun X,Wada T,Imai T,Shiroya T,Reinberg D

更新日期：1993-11-01 00:00:00