Position effect variegation in Drosophila is associated with an altered chromatin structure.

abstract：:The Neurospora crassa clock-controlled gene (ccg-2) is transcriptionally activated by the circadian clock in a time-of-day-specific manner. Transcript and sequence analyses of ccg-2 reveal that the predicted Ccg-2 polypeptide bears significant similarity to a class of low-molecular-weight, cysteine-rich, hydrophobic p...

journal_title：Genes & development

authors： Bell-Pedersen D,Dunlap JC,Loros JJ

更新日期：1992-12-01 00:00:00

abstract：:Previous genetic mosaic studies established that expression of the Drosophila bride of sevenless (boss) gene is required in photoreceptor neuron R8 for the development of photoreceptor neuron R7. This led to the proposal that boss encodes or regulates an R7-specific inductive cue. We have identified the boss gene base...

journal_title：Genes & development

authors： Hart AC,Krämer H,Van Vactor DL Jr,Paidhungat M,Zipursky SL

更新日期：1990-11-01 00:00:00

abstract：:In many species, a dosage compensation complex (DCC) is targeted to X chromosomes of one sex to equalize levels of X-gene products between males (1X) and females (2X). Here we identify cis-acting regulatory elements that target the Caenorhabditis elegans X chromosome for repression by the DCC. The DCC binds to discret...

journal_title：Genes & development

authors： Jans J,Gladden JM,Ralston EJ,Pickle CS,Michel AH,Pferdehirt RR,Eisen MB,Meyer BJ

更新日期：2009-03-01 00:00:00

abstract：:The nonsense-mediated mRNA decay (NMD) pathway selectively degrades mRNAs harboring premature termination codons (PTCs). Seven genes (smg-1-7, for suppressor with morphological effect on genitalia) that are essential for NMD were originally identified in the nematode Caenorhabditis elegans, and orthologs of these gene...

journal_title：Genes & development

authors： Longman D,Plasterk RH,Johnstone IL,Cáceres JF

更新日期：2007-05-01 00:00:00

abstract：:The structurally related POU homeo domain proteins Pit-1 and Oct-2 activate pituitary- and lymphoid-specific transcription, respectively, by binding to similar AT-rich motifs in their target genes. In this study we identify bases critical for recognition and activation by Pit-1 and examine how small differences in Pit...

journal_title：Genes & development

authors： Elsholtz HP,Albert VR,Treacy MN,Rosenfeld MG

更新日期：1990-01-01 00:00:00

abstract：:Telomerase is a ribonucleoprotein enzyme that adds telomeric repeats to chromosomes, maintaining telomere length and stabilizing chromosome ends. In vitro, telomerase from the ciliate Tetrahymena elongates single-stranded, guanosine-rich DNA primers by adding repeats of the Tetrahymena telomeric sequence, dT2G4. We ha...

journal_title：Genes & development

authors： Collins K,Greider CW

更新日期：1993-07-01 00:00:00

abstract：:The dihydrofolate reductase (DHFR) and 2BE2121 genes in the Chinese hamster are convergently transcribed in late G1 and ea ly S phase, and bracket an early-firing origin of replication that consists of a 55-kb zone of potential initiation sites. To test whether transcription through the DHFR gene is required to activa...

journal_title：Genes & development

authors： Saha S,Shan Y,Mesner LD,Hamlin JL

更新日期：2004-02-15 00:00:00

abstract：:The RAG-1 protein plays an essential role in V(D)j recombination, but its exact function has not yet been defined. Here we report that a particular mutation in RAG-1 affects recombination by altering the specificity of target sequence usage. Recombination mediated by wild-type RAG-1 is tolerant of a wide range of codi...

journal_title：Genes & development

authors： Sadofsky MJ,Hesse JE,van Gent DC,Gellert M

更新日期：1995-09-01 00:00:00

abstract：:Recombination catalyzed by the Flp site-specific recombinase involves breakage and joining of four DNA strands between two target substrates. The reaction is carried out in two steps of pairwise strand exchanges by a DNA-protein assembly in which four Flp monomers act cooperatively to execute strand cleavage and joini...

journal_title：Genes & development

authors： Lee J,Jayaram M

更新日期：1997-09-15 00:00:00

abstract：:Spindle checkpoint silencing is a critical step during mitosis that initiates chromosome segregation, yet surprisingly little is known about its mechanism. Protein phosphatase I (PP1) was shown recently to be a key player in this process, and in this issue of Genes & Deverlopment, Akiyoshi and colleagues (pp. 2887-289...

journal_title：Genes & development

authors： Vanoosthuyse V,Hardwick KG

更新日期：2009-12-15 00:00:00

abstract：:In this issue of Genes & Development, Wierzbicki and colleagues (pp. 1825-1836) examine the current model of RNA-directed DNA methylation (RdDM) by determining genome-wide distributions of RNA polymerase V (Pol V) occupancy, siRNAs, and DNA methylation. Their data support the key role of base-pairing between Pol V tra...

journal_title：Genes & development

authors： Zhang H,Zhu JK

更新日期：2012-08-15 00:00:00

abstract：:P-element transformants of a single rRNA gene (rDNA) were used to investigate the relationship between the organization of the nucleolus organizer (NO) and rDNA function in Drosophila melanogaster. In situ hybridization to rRNA in polytene nuclei of salivary glands demonstrated that an rRNA gene can be transcribed at ...

journal_title：Genes & development

authors： Karpen GH,Schaefer JE,Laird CD

更新日期：1988-12-01 00:00:00

abstract：:We have studied the sequence requirements for 3'-end formation of rDNA transcripts in a cell-free system and show that the generation of correct ends of mouse pre-rRNA is brought about by a two-step process that involves a bona fide termination reaction, followed by a specific trimming of the primary transcript by 10 ...

journal_title：Genes & development

authors： Kuhn A,Grummt I

更新日期：1989-02-01 00:00:00

abstract：:The myc family of cellular oncogenes encodes three highly related nuclear phosphoproteins (c-Myc, N-Myc, and L-Myc) that are believed to function as sequence-specific transcription factors capable of regulating genes important in cellular growth and differentiation. Current evidence indicates that Myc family proteins ...

journal_title：Genes & development

authors： Mukherjee B,Morgenbesser SD,DePinho RA

更新日期：1992-08-01 00:00:00

abstract：:The product of the nuclear MRS2 gene, Mrs2p, is the only candidate splicing factor essential for all group II introns in mitochondria of the yeast Saccharomyces cerevisiae. It has been shown to be an integral protein of the inner mitochondrial membrane, structurally and functionally related to the bacterial CorA Mg(2+...

journal_title：Genes & development

authors： Gregan J,Kolisek M,Schweyen RJ

更新日期：2001-09-01 00:00:00

abstract：:The basic helix-loop-helix (bHLH) gene Hes7, a putative Notch effector, encodes a transcriptional repressor. Here, we found that Hes7 expression oscillates in 2-h cycles in the presomitic mesoderm (PSM). In Hes7-null mice, somites are not properly segmented and their anterior-posterior polarity is disrupted. As a resu...

journal_title：Genes & development

authors： Bessho Y,Sakata R,Komatsu S,Shiota K,Yamada S,Kageyama R

更新日期：2001-10-15 00:00:00

abstract：:The mouse Nedd5 gene encodes a 41.5-kD GTPase similar to the Saccharomyces and Drosophila septins essential for cytokinesis. Nedd5 accumulates near the contractile ring from anaphase through telophase, and finally condenses into the midbody. Microinjection of anti-Nedd5 antibody interferes with cytokinesis, giving ris...

journal_title：Genes & development

authors： Kinoshita M,Kumar S,Mizoguchi A,Ide C,Kinoshita A,Haraguchi T,Hiraoka Y,Noda M

更新日期：1997-06-15 00:00:00

abstract：:Macrophages play critical roles in events ranging from host defense to obesity and cancer, where they infiltrate affected tissues and orchestrate immune responses in tandem with the remodeling of the extracellular matrix (ECM). Despite the dual roles played by macrophages in inflammation, the functions of macrophage-d...

journal_title：Genes & development

authors： Shimizu-Hirota R,Xiong W,Baxter BT,Kunkel SL,Maillard I,Chen XW,Sabeh F,Liu R,Li XY,Weiss SJ

更新日期：2012-02-15 00:00:00

abstract：:Post-translational processes are essential for the generation and dynamics of mammalian circadian rhythms. In particular, phosphorylation of the key circadian protein PER2 precisely controls the period and phase of circadian oscillations. However, the mechanisms underlying that control are poorly understood. Here, we ...

journal_title：Genes & development

authors： Maier B,Wendt S,Vanselow JT,Wallach T,Reischl S,Oehmke S,Schlosser A,Kramer A

更新日期：2009-03-15 00:00:00

abstract：:The eukaryotic ribosomal RNA (rRNA) is associated cotranscriptionally with numerous factors into an enormous 90S preribosomal particle that conducts early processing of small ribosomal subunits. The assembly pathway and structure of the 90S particle is poorly understood. Here, we affinity-purified and analyzed the con...

journal_title：Genes & development

authors： Zhang L,Wu C,Cai G,Chen S,Ye K

更新日期：2016-03-15 00:00:00

abstract：:Spliceosome assembly has been characterized as the ordered association of the snRNP particles U1, U2, and U4/U6.U5 onto pre-mRNA. We have used an in vitro trans-splicing/cross-linking system in Saccharomyces cerevisiae nuclear extracts to examine the first step of this process, 5' splice site recognition. This trans-s...

journal_title：Genes & development

authors： Johnson TL,Abelson J

更新日期：2001-08-01 00:00:00

abstract：:During vascular development, endothelial platelet-derived growth factor B (PDGF-B) is critical for pericyte recruitment. Deletion of the conserved C-terminal heparin-binding motif impairs PDGF-BB retention and pericyte recruitment in vivo, suggesting a potential role for heparan sulfate (HS) in PDGF-BB function during...

journal_title：Genes & development

authors： Abramsson A,Kurup S,Busse M,Yamada S,Lindblom P,Schallmeiner E,Stenzel D,Sauvaget D,Ledin J,Ringvall M,Landegren U,Kjellén L,Bondjers G,Li JP,Lindahl U,Spillmann D,Betsholtz C,Gerhardt H

更新日期：2007-02-01 00:00:00

abstract：:NF-E1, a DNA-binding protein that recognizes the general consensus motif WGATAR, is the first tissue-specific factor to be identified in erythroid cells. Using a probe from the murine GF-1 (NF-E1) cDNA clone, we isolated three homologous chicken cDNAs: One of these corresponds to an mRNA (NF-E1a) that is abundantly an...

journal_title：Genes & development

authors： Yamamoto M,Ko LJ,Leonard MW,Beug H,Orkin SH,Engel JD

更新日期：1990-10-01 00:00:00

abstract：:The P family of transposable elements in Drosophila transpose by a cut-and-paste mechanism involving double-strand gap repair. We report here that a Drosophila mutagen-sensitive mutant, mus3O9, contains a mutation in IRBP (inverted repeat binding protein), the Drosophila homolog of the mammalian Ku p70 gene. We show t...

journal_title：Genes & development

authors： Beall EL,Rio DC

更新日期：1996-04-15 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：:Long noncoding RNAs (lncRNAs) can trigger repressive chromatin, but how they recruit silencing factors remains unclear. In Schizosaccharomyces pombe, heterochromatin assembly on transcribed noncoding pericentromeric repeats requires both RNAi and RNAi-independent mechanisms. In Saccharomyces cerevisiae, which lacks a ...

journal_title：Genes & development

authors： Marina DB,Shankar S,Natarajan P,Finn KJ,Madhani HD

更新日期：2013-09-01 00:00:00

abstract：:We have identified protein kinase C-zeta (PKC-zeta) as a novel suppressor of neoplastic transformation caused by the v-raf oncogene. PKC-zeta overexpression drastically retards proliferation, abolishes anchorage-independent growth, and reverts the morphological transformation of v-raf-transformed NIH-3T3 cells. The mo...

journal_title：Genes & development

authors： Kieser A,Seitz T,Adler HS,Coffer P,Kremmer E,Crespo P,Gutkind JS,Henderson DW,Mushinski JF,Kolch W,Mischak H

更新日期：1996-06-15 00:00:00

abstract：:The human RNA polymerase II (RNAPII)-associated factor complex (hPAFc) and its individual subunits have been implicated in human diseases, including cancer. However, its involvement in breast cancer awaits investigation. Using data mining and human breast cancer tissue microarrays, we found that Ctr9, the key scaffold...

journal_title：Genes & development

authors： Zeng H,Xu W

更新日期：2015-10-15 00:00:00

abstract：:We have analyzed pre-mRNA splicing in yeast extracts immunodepleted of the PRP18 protein. We find that while the first step of splicing (cleavage at the 5' splice site, and generation of the exon 1 and lariat intermediates) is unaffected by the absence of PRP18, the second step of splicing (excision of the lariat intr...

journal_title：Genes & development

authors： Horowitz DS,Abelson J

更新日期：1993-02-01 00:00:00

abstract：:The transcription cofactor MAL is regulated by free actin levels and thus by actin dynamics. MAL, together with its DNA-binding partner, SRF, is required for invasive cell migration and in experimental metastasis. Although MAL/SRF has many targets, we provide genetic evidence in both Drosophila and human cellular mode...

journal_title：Genes & development

authors： Salvany L,Muller J,Guccione E,Rørth P

更新日期：2014-05-15 00:00:00