ArticleParasitology research2010
Silent information regulator 2 proteins encoded by Cryptosporidium parasites.
Article in Parasitology research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 6 citations in OpenAlex.
- Gene regulation inCurrent research in parasitology & vector-borne diseases · 2025Article
- Novel Synthetic Approaches for Bisnaphthalimidopropyl (BNIP) Derivatives as Potential Anti-Parasitic Agents for the Treatment of Leishmaniasis.Molecules (Basel, Switzerland) · 2019Article
- Sirtuins of parasitic protozoa: in search of function(s).Molecular and biochemical parasitology · 2012Review
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Authors and funding
2 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Screening in a database has revealed that Cryptosporidium hominis encodes a silent information regulator 2 (Sir2), a nicotinamide adenine dinucleotide (NAD)-dependent protein deacetylase. Cellular localization of the protein, ChSir2, was analyzed by the use of the social amoeba Dictyostelium discoideum as a model system. Fluorescent microscopic analysis showed that ChSir2 fused with green fluorescent protein was localized in the D. discoideum nucleus. D. discoideum expressing ChSir2 grew faster and reached higher cell density than did D. discoideum harboring a control vector. These results suggest that ChSir2 is a nucleus-localizing protein that plays an important role in the growth of C. hominis. We cloned and sequenced the genes for Sir2 orthologs encoded by three isolates of C. hominis, two isolates of Cryptosporidium parvum and one isolate of Cryptosporidium meleagridis. The orthologs conserve critical catalytic or NAD-binding residues but do not have similarity with human Sir2 proteins (SIRTs). Cryptosporidium Sir2 orthologs would therefore be attractive therapeutic targets. The Cryptosporidium orthologs were classified into four variants based on their nucleotide sequences. Each of the four variants produces its own unique restriction fragment length polymorphism pattern by digestion with TfiI.
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