Projects

1. Insulin control of metabolism, development, and longevity
  • The genetics of C. elegans hibernation
  • An insulin signaling pathway regulates C. elegans metabolism and longevity
  • Longevity regulation by daf-2
  • Longevity and diapause
  • Multiple insulin-like probable DAF-2 ligands
  • The AGE-1 PI-3 kinase acts downstream of the DAF-2 insulin receptor
  • C. elegans Akt/PKB Transduces Insulin Receptor-like Signals from AGE-1 PI-3 kinase to the DAF-16 Transcription Factor
  • PDK genetics
  • The C. elegans PTEN homologue DAF-18 acts in the insulin receptor-like metabolic signaling pathway
  • Pathway genetics of the signaling pathway downstream of DAF-2 and parallel to the PDK, AKT pathway.
  • The DAF-16 forkhead protein transduces DAF-2/AGE-1 insulin receptor-like signals
  • Regulation of C. elegans DAF-16 and its human ortholog FKHRL1 by the daf-2 insulin-like signaling pathway
  • A screen for mutations affecting the daf-16/FH-independent daf-2/IR signaling pathway
2. Neural regulation of lifespan and metabolism
  • C. elegans lifespan is regulated by insulin-like signaling in the nervous system
  • Food and metabolic signaling defects in a C. elegans serotonin synthesis mutant
  • Thermosensory input to endocrine control of metabolism
  • TGF-beta neuroendocrine signal from the ASI dauer regulatory neuron
  • Pheromone Regulation of daf-7expression
3. Downstream of DAF-16
  • Genetic and biochemical identification of DAF-16 regulated genes
  • daf-2/ age-1 insulin pathway is involved in osmoregulation
  • Role of cytochrome P450 enzymes in C. elegans development
  • A genetic screen for new players in C. elegans lifespan regulation
4. Heterochronic genes and regulatory RNAs
  • The molecular dissection of the lin-4/lin-14 RNA duplex
  • Genetic identification of components necessary for lin-14 3’ UTR mediated down-regulation
    • i. A lin-4 allele-specific suppressor screen
    • ii. A screen for trans-acting factors necessary for lin-4/lin-14 3’ UTR regulation
  • Genetic discovery of a second regulatory RNA in the heterochronic pathway
  • Genetic and molecular identification of lin-41 which encodes an RBCC possible RNA binding protein and is down-regulated at the time of let-7 regulatory RNA expression.
  • Conservation across animal phylogeny of the sequence and temporal expression of the 21 nucleotide let-7 heterochronic regulatory RNA
  • Genes and mechanisms related to RNA interference regulate expression of the small temporal RNAs that control C. elegans developmental timing
  • Characterization of the effect of early expression of the small RNA let-7 on developmental timing in C. elegans.
  • Genetics and genomics of heterochronic regulatory RNAs
  • Structure/function studies of let-7 using an in vivo assay of temporal gradient formation
  • Genetic exploration of genes that act upstream or in concert with the heterochronic regulatory RNAs
  • Genetic exploration of transcriptional regulation of let-7 at the L4 and later stages
  • Analysis of the mechanism by which the let-7 and the lin-4 regulatory RNAs regulate expression of target genes
5. The genetics of fat storage
6. Genetics of molting control
7. A Genetic Interaction Between a Neurotransmitter Transporter and Synaptobrevin
8. Conservation of regulatory regions
9. Life on Mars
  • SETG, a Search for Extraterrestrial Genomes- A Robotic PCR Detector For Life on Mars Ancestrally Related to Life on Earth