Abstract:
:Calcineurin, a conserved Ca(2+)/calmodulin-regulated protein phosphatase, plays a crucial role in Ca(2+) signaling in a wide variety of cell types. In Saccharomyces cerevisiae, calcineurin positively regulates transcription in response to stress by dephosphorylating the transcription factor Crz1p/Tcn1p. Dephosphorylation promotes Crz1p nuclear localization in part by increasing the efficiency of its nuclear import. In this work, we show that calcineurin-dependent dephosphorylation of Crz1p also down-regulates its nuclear export. Using a genetic approach, we identify Msn5p as the exportin for Crz1p. In addition, we define the Crz1p nuclear export signal (NES) and show that it interacts with Msn5p in a phosphorylation-dependent manner. This indicates that calcineurin regulates Crz1p nuclear export by dephosphorylating and inactivating its NES. Finally, we define a motif in Crz1p, PIISIQ, similar to the PxIxIT docking site for calcineurin on the mammalian transcription factor NFAT, that mediates the in vivo interaction between calcineurin and Crz1p and is required for calcineurin-dependent regulation of Crz1p nuclear export and activity. Therefore, in yeast as in mammals, a docking site is required to target calcineurin to its substrate such that it can dephosphorylate it efficiently.
journal_name
Genes Devjournal_title
Genes & developmentauthors
Boustany LM,Cyert MSdoi
10.1101/gad.967602subject
Has Abstractpub_date
2002-03-01 00:00:00pages
608-19issue
5eissn
0890-9369issn
1549-5477journal_volume
16pub_type
杂志文章abstract::Sequence analysis of an embryonic transcript of Drosophila predicts a tyrosine protein kinase-related gene. The prediction is based on several protein domains that are homologous to the functional domains of kinase-related oncogenes and several serine, threonine, and tyrosine protein kinases. For this reason, we named...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1.8.862
更新日期:1987-10-01 00:00:00
abstract::Post-translational modifications of histones are significant regulators of replication, transcription, and DNA repair. Particularly, newly synthesized histone H4 in H3/H4 heterodimers becomes acetylated on N-terminal lysine residues prior to its incorporation into chromatin. Previous studies have established that the ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.240531.114
更新日期:2014-06-01 00:00:00
abstract::Expression of the Arabidopsis CGS1 gene that codes for cystathionine gamma-synthase is feedback regulated at the step of mRNA stability in response to S-adenosyl-L-methionine (AdoMet). A short stretch of amino acid sequence, called the MTO1 region, encoded by the first exon of CGS1 itself is involved in this regulatio...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1317105
更新日期:2005-08-01 00:00:00
abstract::The unique property of stem cells to self-renew suggests specific mechanisms that regulate their cell-cycle progression. In the present study, we identify a novel protein, nucleostemin, found in the nucleoli of CNS stem cells, embryonic stem cells, and several cancer cell lines and preferentially expressed by other st...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.55671
更新日期:2002-12-01 00:00:00
abstract::Pre-rRNA transcription by RNA Polymerase I (Pol I) is very robust on active rDNA repeats. Loss of yeast Topoisomerase I (Top1) generated truncated pre-rRNA fragments, which were stabilized in strains lacking TRAMP (Trf4/Trf5-Air1/Air2-Mtr4 polyadenylation complexes) or exosome degradation activities. Loss of both Top1...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.573310
更新日期:2010-07-15 00:00:00
abstract::Mammalian cells exhibit a complex response to DNA damage. The tumor suppressor BRCA1 and associated protein BARD1 are thought to play an important role in this response, and our previous work demonstrated that this includes transient inhibition of the pre-mRNA 3' processing machinery. Here we provide evidence that thi...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1309505
更新日期:2005-05-15 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
pub_type: 杂志文章
doi:10.1101/gad.829100
更新日期:2000-11-01 00:00:00
abstract::Mesoderm induction assays in Xenopus have implicated growth factors such as activin, Vg1, Xwnt-8, and noggin as important in directing the formation of dorsal mesoderm (Spemann's organizer). Because these growth factors are structurally very different, they presumably act through distinct cell surface receptors that i...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.9.24.3038
更新日期:1995-12-15 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
pub_type: 杂志文章
doi:10.1101/gad.512209
更新日期:2009-03-15 00:00:00
abstract::Innate immunity against pathogen infection is an evolutionarily conserved process among multicellular organisms. Arabidopsis SNC1 encodes a Resistance protein that combines attributes of multiple mammalian pattern recognition receptors. Utilizing snc1 as an autoimmune model, we identified a discrete protein complex co...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1559607
更新日期:2007-06-15 00:00:00
abstract::The control of translation and mRNA degradation is an important part of the regulation of gene expression. It is now clear that small RNA molecules are common and effective modulators of gene expression in many eukaryotic cells. These small RNAs that control gene expression can be either endogenous or exogenous micro ...
journal_title:Genes & development
pub_type: 杂志文章,评审
doi:10.1101/gad.1399806
更新日期:2006-03-01 00:00:00
abstract::The Brr2 helicase provides the key remodeling activity for spliceosome catalytic activation, during which it disrupts the U4/U6 di-snRNP (small nuclear RNA protein), and its activity has to be tightly regulated. Brr2 exhibits an unusual architecture, including an ∼ 500-residue N-terminal region, whose functions and mo...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.271528.115
更新日期:2015-12-15 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
pub_type: 杂志文章
doi:10.1101/gad.9.4.491
更新日期:1995-02-15 00:00:00
abstract::Class switch recombination (CSR) diversifies antibodies for productive immune responses while maintaining stability of the B-cell genome. Transcription at the immunoglobulin heavy chain (Igh) locus targets CSR-associated DNA damage and is promoted by the BRCT domain-containing PTIP (Pax transactivation domain-interact...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.268797.115
更新日期:2016-01-15 00:00:00
abstract::GRF2, an abundant yeast protein of Mr approximately 127,000, binds to the GAL upstream activating sequence (UASG) and creates a nucleosome-free region of approximately 230 bp. Purified GRF2 binds to sequences found in many other UASs, in the 35S rRNA enhancer, at centromeres, and at telomeres. Although GRF2 stimulates...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.4.4.503
更新日期:1990-04-01 00:00:00
abstract::Ecsit is a cytosolic adaptor protein essential for inflammatory response and embryonic development via the Toll-like and BMP (bone morphogenetic protein) signal transduction pathways, respectively. Here, we demonstrate a mitochondrial function for Ecsit (an evolutionary conserved signaling intermediate in Toll pathway...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.408407
更新日期:2007-03-01 00:00:00
abstract::Metazoans start embryogenesis with a relatively naïve genome. The transcriptionally inert, late-replicating heterochromatic regions, including the constitutive heterochromatin on repetitive sequences near centromeres and telomeres, need to be re-established during development. To explore the events initiating heteroch...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.272237.115
更新日期:2016-03-01 00:00:00
abstract::The senescence-associated secretory phenotype (SASP) is a major trait of senescent cells, but the molecular regulators of SASP factor secretion are poorly understood. Mass spectrometry analysis revealed that secretory carrier membrane protein 4 (SCAMP4) levels were strikingly elevated on the surface of senescent cells...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.313270.118
更新日期:2018-07-01 00:00:00
abstract::Epigenetic modifications of chromatin play an important role in the regulation of gene expression. KMT4/Dot1 is a conserved histone methyltransferase capable of methylating chromatin on Lys79 of histone H3 (H3K79). Here we report the identification of a multisubunit Dot1 complex (DotCom), which includes several of the...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1898410
更新日期:2010-03-15 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
pub_type: 杂志文章
doi:10.1101/gad.9.5.626
更新日期:1995-03-01 00:00:00
abstract::In Drosophila the function of the epidermal growth factor (EGF) receptor is modulated zygotically by three EGF-like proteins: Spitz (Spi), which is a potent activator; Vein (Vn), which is a moderate activator; and Argos (Aos), which is an inhibitor. Chimeric molecules were constructed in which the EGF domain of Vn was...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.12.7.908
更新日期:1998-04-01 00:00:00
abstract::RUNX1/AML1 is required for the development of definitive hematopoiesis, and its activity is altered by mutations, deletions, and chromosome translocations in human acute leukemia. RUNX1 function can be regulated by post-translational modifications and protein-protein interactions. We show that RUNX1 is arginine-methyl...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1632608
更新日期:2008-03-01 00:00:00
abstract::The genes pannier (pnr) and u-shaped (ush) are required for the regulation of achaete-scute during establishment of the bristle pattern in Drosophila. pnr encodes a protein belonging to the GATA family of transcription factors, whereas ush encodes a novel zinc finger protein. Genetic interactions between dominant pnr ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.11.22.3096
更新日期:1997-11-15 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
pub_type: 杂志文章
doi:10.1101/gad.7.12a.2456
更新日期:1993-12-01 00:00:00
abstract::Influenza virus unspliced NS1 mRNA, like retroviral pre-mRNAs, is efficiently exported from the nucleus and translated in the cytoplasm of infected cells. With human immunodeficiency virus (HIV), the transport of viral pre-mRNAs is facilitated by the viral Rev protein. We tested the possibility that the influenza viru...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.6.2.255
更新日期:1992-02-01 00:00:00
abstract::The Rad51 and Lim15 proteins of lily, which are homologs of the bacterial RecA protein, were found on chromosomes in various stages of meiotic prophase 1. The presence of both Rad51 and Lim15 proteins as discrete foci on leptotene and zygotene chromosomes and their colocalization suggest that meiotic recombination beg...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.9.8.925
更新日期:1995-04-15 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
pub_type: 杂志文章
doi:10.1101/gad.13.21.2828
更新日期:1999-11-01 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
pub_type: 杂志文章
doi:10.1101/gad.13.19.2562
更新日期:1999-10-01 00:00:00
abstract::Cell cycle checkpoints are critical for genomic stability. Rad17, a component of the checkpoint clamp loader complex (Rad17/Rfc2-5), is required for the response to DNA damage and replication stress. To explore the role of Rad17 in the maintenance of genomic integrity, we established somatic conditional alleles of RAD...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1065103
更新日期:2003-04-15 00:00:00
abstract::Glucocorticoid (GC) receptor (GR) has been shown recently to bind a subset of mRNAs and elicit rapid mRNA degradation. However, the molecular details of GR-mediated mRNA decay (GMD) remain unclear. Here, we demonstrate that GMD triggers rapid degradation of target mRNAs in a translation-independent and exon junction c...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.286484.116
更新日期:2016-09-15 00:00:00