Now showing items 11-20 of 29
Studies with radioactive protein hormone preparations
Abstract Not Available.
Identification and characterization ofbemused, a Drosophila gene involved in neuronal excitability, gametogenesis and embryonic development
During a screen for novel genes involved in the process of neurotransmission, a gene, bemused, was identified as the result of a transposon insertion at 85D on the third chromosome. Mutation of bem produces flies that are ...
Cloning and sequencing of inebriated, a gene encoding a neurotransmitter transporter in Drosophila melanogaster
Behavioral and electrophysiological studies on mutants defective in the Drosophila inebriated (ine) gene demonstrated increased excitability of the motor neuron. In this thesis is described the cloning and sequence analysis ...
Functions of the calmodulin-related TCH3 and TCH4-xyloglucan endotransglycosylase in Arabidopsis plants
Plants sense their environment and respond through changes in their development and physiology. Mechanical perturbation, darkness, temperature shocks, and exogenous hormones upregulate the expression of the TCH genes in ...
Hypertonic shock and the cell cycle: Identification of a stress-induced G2 delay in Saccharomyces cerevisiae
Exposure of S. cerevisiae cells to an increase in external osmolarity induces a temporary growth arrest. Recovery from this stress is mediated by the accumulation of intracellular glycerol and the transcription of several ...
Genes expressed during oogenesis in Calliphora erythrocephala and Drosophila melanogaster
We were interested in identifying genes in the dipteran flies Calliphora erythrocephala and Drosophila melanogaster with a role in oogenesis and early embryogenesis. A biochemical screen was used to complement the extensive ...
Ligand and genetic studies of the sulfate-binding protein and characterization of the calcium-binding site in the galactose-binding protein
The effect of pH on the binding affinities of the conjugate bases of four different tetrahedral oxyacids to the periplasmic sulfate-binding protein from Salmonella typhimurium has been determined. In light of the highly ...
Cloning and characterization of genes required for osmoregulation in the yeast Saccharomyces cerevisiae
Salt stress induces multiple physiological responses in unicellular organisms. Responses include both immediate effects upon membrane permeability to select cytoplasmic solutes and changes in gene expression. This study ...
INDUCTION AND SHUT OFF OF DIHYDROFOLATE REDUCTASE GENE EXPRESSION DURING PRODUCTIVE INFECTION BY ADENOVIRUS TYPE 2
The effects of productive adenovirus infection on host gene expression were studied using a line of methotrexate-resistant HeLa cells containing amplified amounts of the gene coding for dihydrofolate reductase (DHFR). These ...
CONTROL OF GENE EXPRESSION IN ESCHERICHIA COLI THROUGH SUPERCOILING AND OPERATOR REGIONS
This research has investigated the effect that altered supercoiling has on in vivo expression from bacterial promoters. In vivo expression was measured using the pKO system developed by McKenney et al. (1982). Supercoil ...