Research Topics
Genomes and GenesSpecies | J TowerSummaryAffiliation: University of Southern California Country: USA Publications
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Publications
Aging mechanisms in fruit filesJ Tower
Department of Biological Sciences, University of Southern California, Los Angeles 90089 1340, USA
Bioessays 18:799-807. 1996..Transgenic files are being used to analyze the mechanisms of such aging-related gene expression, and to test the effects of specific genes on aging and aging-related deterioration...
Functionally distinct, sequence-specific replicator and origin elements are required for Drosophila chorion gene amplificationL Lu
Department of Biological Sciences, University of Southern California, Los Angeles, California 90089 1340, USA
Genes Dev 15:134-46. 2001..The results suggest that ACE3 acts as a replicator and support and extend the replicator model for the organization of metazoan chromosomal replicons...
Aging-specific expression of Drosophila hsp22V King
Department of Biological Sciences, University of Southern California, University Park, Los Angeles, California, 90089 1340, USA
Dev Biol 207:107-18. 1999..Aging-specific induction of hsp22 is discussed with regard to current evolutionary theories of aging...
The Drosophila chiffon gene is required for chorion gene amplification, and is related to the yeast Dbf4 regulator of DNA replication and cell cycleG Landis
Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089 1340, USA
Development 126:4281-93. 1999..The data suggest a family of eukaryotic proteins related to Dbf4 and involved in initiation of DNA replication...
Increased hsp22 RNA levels in Drosophila lines genetically selected for increased longevityR Kurapati
Department of Biological Sciences, University of Southern California, Los Angeles 90089 1340, USA
J Gerontol A Biol Sci Med Sci 55:B552-9. 2000..Thus increased hsp22 and hsp23 RNA levels correlate with the increased life span and increased stress resistance of the genetically selected O lines...
High-frequency generation of conditional mutations affecting Drosophila melanogaster development and life spanG Landis
Department of Biological Sciences, University of Southern California, Los Angeles, California 90089 1340, USA
Genetics 158:1167-76. 2001..The PdL system should facilitate testing of a large fraction of Drosophila genes for overexpression and misexpression phenotypes at specific developmental and life cycle stages...
Doxycycline-induced transgene expression during Drosophila development and agingE T Bieschke
Department of Biological Sciences, University of Southern California, Los Angeles 90089 1340, USA
Mol Gen Genet 258:571-9. 1998..Induction of beta-gal in adults had no detectable effect on life span. These results suggest the potential usefulness of this system for testing specific genes for effects on Drosophila development and aging...
FLP recombinase-mediated induction of Cu/Zn-superoxide dismutase transgene expression can extend the life span of adult Drosophila melanogaster fliesJ Sun
Department of Biological Sciences, University of Southern California, Los Angeles, California 90089 1340, USA
Mol Cell Biol 19:216-28. 1999..Finally, experimental manipulation of the genetic background demonstrated that the life span is affected by epistatic interactions between the transgene and allele(s) at other loci...
Transgenic methods for increasing Drosophila life spanJ Tower
Department of Biological Sciences, SHS172, University of Southern California, Los Angeles, CA 90089 1340, USA
Mech Ageing Dev 118:1-14. 2000..Using these techniques, over-expression of the hsp70, Cu/ZnSOD and MnSOD genes has each been demonstrated to increase Drosophila life span...
Muscle-specific expression of Drosophila hsp70 in response to aging and oxidative stressJ C Wheeler
Department of Biological Sciences, University of Southern California, Los Angeles 90089 1340, USA
Proc Natl Acad Sci U S A 92:10408-12. 1995..15.1.1). Taken together, the results suggest that aging-specific hsp70 expression may be a result of oxidative damage...
A transcriptional insulator element, the su(Hw) binding site, protects a chromosomal DNA replication origin from position effectsL Lu
Department of Biological Sciences, University of Southern California, Los Angeles 90089 1340, USA
Mol Cell Biol 17:2202-6. 1997..Inclusion of only a single su(Hw)BS in the construct did not detectably protect the chorion gene DNA replication origin from position effects...
DNA mismatch repair catalyzed by extracts of mitotic, postmitotic, and senescent Drosophila tissues and involvement of mei-9 gene function for full activityA Bhui-Kaur
Department of Biological Sciences and Hedco Molecular Biology Laboratories, University of Southern California, Los Angeles 90089 1340, USA
Mol Cell Biol 18:1436-43. 1998..mei-9 has been shown to be required in vivo for certain types of DNA mismatch repair, nucleotide excision repair (NER), and meiotic crossing over and is the Drosophila homolog of the yeast NER gene rad1...
The k43 gene, required for chorion gene amplification and diploid cell chromosome replication, encodes the Drosophila homolog of yeast origin recognition complex subunit 2G Landis
Department of Biological Sciences, University of Southern California, Los Angeles 90089 1340, USA
Proc Natl Acad Sci U S A 94:3888-92. 1997..These results suggest an evolutionarily conserved role for Orc2p in eukaryotic chromosomal DNA replication...
Preferential transposition of a Drosophila P element to the corresponding region of the homologous chromosomeJ Tower
Department of Biological Sciences, School of Gerontology, University of Southern California, Los Angeles 90089 1340
Mol Gen Genet 244:484-90. 1994....
Genetics of 51D-52A, a region containing several maternal-effect genes and two maternal-specific transcripts in DrosophilaE M Underwood
Department of Biological Sciences, Bowling Green State University, Ohio 43403
Genetics 126:639-50. 1990..Thus it appears that this is a "developmentally important" region, possibly representing a clustering of genes involved in either DNA replication or nuclear division...
