ArticleFilaria journal2005
Studies on Acanthocheilonema viteae cystatin: genomic organization, promoter studies and expression in Caenorhabditis elegans.
Article in Filaria journal, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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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0 citing papers in PubMed, 4 citations in OpenAlex.
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Authors and funding
6 authors at 3 institutions in 1 country.
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Abstract
Cystatins are reversible, tightly binding inhibitors of cysteine proteases. Filarial cystatins have been ascribed immunomodulatory properties and have been implicated in protective immunity. To continue exploration of this potential, here we have determined the sequence, structure and genomic organization of the cystatin gene locus of A. viteae. The gene is composed of 4 exons separated by 3 introns and spans approximately 2 kb of genomic DNA. The upstream genomic sequence contains transcriptional factor binding sites such as AP-1 and NF-Y, an inverted CCAAT sequence, and a TATA box. To investigate sites of cystatin expression, Caenorhabditis elegans worms were transformed by microinjection with the putative promoter region and the first exon of the A. viteae cystatin gene fused to the reporter GFP. In transgenic worms fluorescence was observed in the pharyngeal and rectal gland cells suggesting that cystatin is secreted. Additionally, A. viteae cystatin was expressed in C. elegans to explore its potential as an expression system for filarial genes.
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