NDLI: Expression of bovine superoxide dismutase in Drosophila melanogaster augments resistance of oxidative stress.

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Functional analysis of chimeric genes obtained by exchanging homologous domains of the mouse mdr1 and mdr2 genes.

mos gene transforming efficiencies correlate with oocyte maturation and cytostatic factor activities.

The Schizosaccharomyces pombe homolog of Saccharomyces cerevisiae HAP2 reveals selective and stringent conservation of the small essential core protein domain.

Cloning and characterization of ERG8, an essential gene of Saccharomyces cerevisiae that encodes phosphomevalonate kinase.

Expression of bovine superoxide dismutase in Drosophila melanogaster augments resistance of oxidative stress.

A variant octamer motif in a Xenopus H2B histone gene promoter is not required for transcription in frog oocytes.

Transcription complex disruption caused by a transition in chromatin structure.

Two types of TATA elements for the CYC1 gene of the yeast Saccharomyces cerevisiae.

Synergistic interactions between transcription factors control expression of the apolipoprotein AI gene in liver cells.

Transcription factor access is mediated by accurately positioned nucleosomes on the mouse mammary tumor virus promoter.

The Saccharomyces cerevisiae ADR1 gene is a positive regulator of transcription of genes encoding peroxisomal proteins.

A kinase-negative mutant of S49 mouse lymphoma cells is defective in posttranslational maturation of catalytic subunit of cyclic AMP-dependent protein kinase.

Tyrosine phosphorylation of a 120-kilodalton pp60src substrate upon epidermal growth factor and platelet-derived growth factor receptor stimulation and in polyomavirus middle-T-antigen-transformed cells.

Characterization of RPR1, an essential gene encoding the RNA component of Saccharomyces cerevisiae nuclear RNase P.

Constitutively expressed c-myb abrogates the requirement for insulinlike growth factor 1 in 3T3 fibroblasts.

Repair of specific base pair mismatches formed during meiotic recombination in the yeast Saccharomyces cerevisiae.

Suppressor analysis of temperature-sensitive RNA polymerase I mutations in Saccharomyces cerevisiae: suppression of mutations in a zinc-binding motif by transposed mutant genes.

Suppressor analysis of temperature-sensitive mutations of the largest subunit of RNA polymerase I in Saccharomyces cerevisiae: a suppressor gene encodes the second-largest subunit of RNA polymerase I.

Myristylation alters DNA-binding activity and transactivation of FBR (gag-fos) protein.

Extracellular signals that regulate liver transcription factors during hepatic differentiation in vitro.

Specific cis-acting sequence for PHO8 expression interacts with PHO4 protein, a positive regulatory factor, in Saccharomyces cerevisiae.

Molecular cloning and functional characterization of the pathway-specific regulatory gene nirA, which controls nitrate assimilation in Aspergillus nidulans.

Alpha B crystallin accumulation is a specific response to Ha-ras and v-mos oncogene expression in mouse NIH 3T3 fibroblasts.

Yeast CBP1 mRNA 3' end formation is regulated during the induction of mitochondrial function.

The URE2 gene product of Saccharomyces cerevisiae plays an important role in the cellular response to the nitrogen source and has homology to glutathione s-transferases.

The transforming potential of the c-erbB-2 protein is regulated by its autophosphorylation at the carboxyl-terminal domain.

trans-Activation of a globin promoter in nonerythroid cells.

Hyperexpression of interleukin-7 is not necessary or sufficient for transformation of a pre-B lymphoid cell line.

The core proteins A2 and B1 exist as (A2)3B1 tetramers in 40S nuclear ribonucleoprotein particles.

Identification and structure of four yeast genes (SLY) that are able to suppress the functional loss of YPT1, a member of the RAS superfamily.

Structure and expression of a gene encoding a putative GTP-binding protein identified by provirus integration in a transgenic mouse strain.

The Drosophila suppressor of sable gene encodes a polypeptide with regions similar to those of RNA-binding proteins.

The gene encoding the oligodendrocyte-myelin glycoprotein is embedded within the neurofibromatosis type 1 gene.

Colony-stimulating factor 1 expression is down-regulated during the adipocyte differentiation of H-1/A marrow stromal cells and induced by cachectin/tumor necrosis factor.

cpc-1, the general regulatory gene for genes of amino acid biosynthesis in Neurospora crassa, is differentially expressed during the asexual life cycle.

Characterization of Neurospora CPC1, a bZIP DNA-binding protein that does not require aligned heptad leucines for dimerization.

Transformation by pp60src or stimulation of cells with epidermal growth factor induces the stable association of tyrosine-phosphorylated cellular proteins with GTPase-activating protein.

Intracellular leucine zipper interactions suggest c-Myc hetero-oligomerization.

Structural and antigenic polymorphism of the 35- to 48-kilodalton merozoite surface antigen (MSA-2) of the malaria parasite Plasmodium falciparum.

Control of junB and extracellular matrix protein expression by transforming growth factor-beta 1 is independent of simian virus 40 T antigen-sensitive growth-sensitive growth-inhibitory events.

Regulation of phosphorylation of the c-erbB-2/HER2 gene product by a monoclonal antibody and serum growth factor(s) in human mammary carcinoma cells.

Spk1, a new kinase from Saccharomyces cerevisiae, phosphorylates proteins on serine, threonine, and tyrosine.

Defective regulation of mitogen-activated protein kinase activity in a 3T3 cell variant mitogenically nonresponsive to tetradecanoyl phorbol acetate.

Induction by ionizing radiation of the gadd45 gene in cultured human cells: lack of mediation by protein kinase C.

Nuclear factor kappa B activates proenkephalin transcription in T lymphocytes.

The 5'-flanking region of the mouse thymidylate synthase gene is necessary but not sufficient for normal regulation in growth-stimulated cells.

Degradation of a-factor by a Saccharomyces cerevisiae alpha-mating-type-specific endopeptidase: evidence for a role in recovery of cells from G1 arrest.

UHF-1, a factor required for maximal transcription of early and late sea urchin histone H4 genes: analysis of promoter-binding sites.

Heat shock proteins affect RNA processing during the heat shock response of Saccharomyces cerevisiae.

The role of RAP1 in the regulation of the MAT alpha locus.

A role for CDC7 in repression of transcription at the silent mating-type locus HMR in Saccharomyces cerevisiae.

Identification of regulatory sequences and protein-binding sites in the liver-type promoter of a gene encoding 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase.

Activation of phosphatidylinositol 3-kinase in cells expressing abl oncogene variants.

Membrane insertion of uracil permease, a polytopic yeast plasma membrane protein.

A phosphatidylinositol-3 kinase binds to platelet-derived growth factor receptors through a specific receptor sequence containing phosphotyrosine.

Macronuclear transformation with specific DNA fragments controls the content of the new macronuclear genome in Paramecium tetraurelia.

The K-fgf/hst oncogene induces transformation through an autocrine mechanism that requires extracellular stimulation of the mitogenic pathway.

Different forms of Go alpha mRNA arise by alternative splicing of transcripts from a single gene on human chromosome 16.

B-cell- and myocyte-specific E2-box-binding factors contain E12/E47-like subunits.

The DAL81 gene product is required for induced expression of two differently regulated nitrogen catabolic genes in Saccharomyces cerevisiae.

Transformation-defective v-ski induces MyoD and myogenin expression but not myotube formation.

An okadaic acid-sensitive phosphatase negatively controls the cyclin degradation pathway in amphibian eggs.

Mice bearing the E mu-myc and E mu-pim-1 transgenes develop pre-B-cell leukemia prenatally.

Nuclear and cytoplasmic location of the FER tyrosine kinase.

Differential Repair of UV Damage in rad Mutants of Saccharomyces cerevisiae: a Possible Function of G2 Arrest upon UV Irradiation

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Expression of bovine superoxide dismutase in Drosophila melanogaster augments resistance of oxidative stress.

Content Provider	PubMed Central
Author	Niedzwiecki, A. Bensch, K. G. Fleming, J. E. Reveillaud, I.
Abstract	Superoxide dismutases (SOD) play a major role in the intracellular defense against oxygen radical damage to aerobic cells. In eucaryotes, the cytoplasmic form of the enzyme is a 32-kDa dimer containing two copper and two zinc atoms (CuZn SOD) that catalyzes the dismutation of the superoxide anion (O2-) to H2O2 and O2. Superoxide-mediated damage has been implicated in a number of biological processes, including aging and cancer; however, it is not certain whether endogenously elevated levels of SOD will reduce the pathological events resulting from such damage. To understand the in vivo relationship between an efficient dismutation of O2- and oxidative injury to biological structures, we generated transgenic strains of Drosophila melanogaster overproducing CuZn SOD. This was achieved by microinjecting Drosophila embryos with P-elements containing bovine CuZn SOD cDNA under the control of the Drosophila actin 5c gene promoter. Adult flies of the resulting transformed lines which expressed both mammalian and Drosophila CuZn SOD were then used as a novel model for evaluating the role of oxygen radicals in aging. Our data show that expression of enzymatically active bovine SOD in Drosophila flies confers resistance to paraquat, an O2(-)-generating compound. This is consistent with data on adult mortality, because there was a slight but significant increase in the mean lifespan of several of the transgenic lines. The highest level of expression of the active enzyme in adults was 1.60 times the normal value. Higher levels may have led to the formation of toxic levels of H2O2 during development, since flies that died during the process of eclosion showed an unusual accumulation of lipofuscin (age pigment) in some of their cells. In conclusion, our data show that free-radical detoxification has a minor by positive effect on mean longevity for several strains.
Starting Page	632
File Format	PDF
ISSN	10985549
e-ISSN	10985549
Journal	Molecular and Cellular Biology
Issue Number	2
Volume Number	11
Language	English
Publisher Date	1991-02-01
Access Restriction	Open
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Cell Biology Molecular Biology

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