This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The human pathogen Toxoplasma gondii is one of the most widely distributed protozoan parasites, infecting approximately one-third of the world?s population. Two forms characterize asexual reproduction of T. gondii; rapidly growing ?tachyzoites? and latent ?bradyzoite? tissue cysts. These two developmental stages are central to disease propagation and causation. The interconversion between tachyzoites and bradyzoites, at the heart of parasite survival and pathogenicity, is poorly understood at a molecular and genetic level, which makes understanding this process an important goal. Recently, a genetic screen was developed to identify regulatory genes that control parasite differentiation and mutants that fail to convert to bradyzoites under differentiation conditions have been isolated. The disrupted locus in one of these mutants (mutant B7) has been identified and the expression of a developmentally regulated transcript (B41) has been abolished in the mutant parasites. B41 is transcribed; yet it contains no obvious open reading frame. The goal of this project is to functionally characterize the disrupted locus in the mutant B7 and test the hypothesis that this locus codes for a functional non-coding RNA that plays a critical role in bradyzoite formation.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Exploratory Grants (P20)
Project #
5P20RR016462-05
Application #
7381423
Study Section
Special Emphasis Panel (ZRR1-RI-4 (02))
Project Start
2006-07-01
Project End
2007-06-30
Budget Start
2006-07-01
Budget End
2007-06-30
Support Year
5
Fiscal Year
2006
Total Cost
$16,940
Indirect Cost
Name
University of Vermont & St Agric College
Department
Chemistry
Type
Schools of Arts and Sciences
DUNS #
066811191
City
Burlington
State
VT
Country
United States
Zip Code
05405
Wagner, Benjamin A; Braddick, Valerie C; Batson, Christopher G et al. (2018) Effects of testosterone dose on spatial memory among castrated adult male rats. Psychoneuroendocrinology 89:120-130
Mireault, Gina C; Crockenberg, Susan C; Heilman, Keri et al. (2018) Social, cognitive, and physiological aspects of humour perception from 4 to 8 months: Two longitudinal studies. Br J Dev Psychol 36:98-109
Mireault, Gina C; Rainville, Brady S; Laughlin, Breanna (2018) Push or Carry? Pragmatic Opportunities for Language Development in Strollers vs. Backpacks. Infancy 23:616-624
Mireault, Gina C (2017) Laughing MATTERS. Sci Am Mind 28:33-37
Nock, Adam M; Wargo, Matthew J (2016) Choline Catabolism in Burkholderia thailandensis Is Regulated by Multiple Glutamine Amidotransferase 1-Containing AraC Family Transcriptional Regulators. J Bacteriol 198:2503-14
Spritzer, M D; Curtis, M G; DeLoach, J P et al. (2016) Sexual interactions with unfamiliar females reduce hippocampal neurogenesis among adult male rats. Neuroscience 318:143-56
Hinkle, Karen L; Anderson, Chad C; Forkey, Blake et al. (2016) Exposure to the lampricide 3-trifluoromethyl-4-nitrophenol results in increased expression of carbohydrate transporters in Saccharomyces cerevisiae. Environ Toxicol Chem 35:1727-32
Reddy, Vasudevi; Mireault, Gina (2015) Teasing and clowning in infancy. Curr Biol 25:R20-3
Symeonides, Menelaos; Murooka, Thomas T; Bellfy, Lauren N et al. (2015) HIV-1-Induced Small T Cell Syncytia Can Transfer Virus Particles to Target Cells through Transient Contacts. Viruses 7:6590-603
Xie, Yi; Jin, Yu; Merenick, Bethany L et al. (2015) Phosphorylation of GATA-6 is required for vascular smooth muscle cell differentiation after mTORC1 inhibition. Sci Signal 8:ra44

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