ArticleNature communications2025
SKSR1 identified as key virulence factor in Cryptosporidium by genetic crossing.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Article
- Cryptosporidium secreted proteins form a complex layered interface with the host cell.PLoS pathogens · 2026Article
- Insights into the lifecycle of Cryptosporidium and compounds targeting developmental stages.Current opinion in microbiology · 2026Review
- Pathogenicity and virulence ofVirulence · 2025Review
- Article
- Cryptosporidium parvum multidrug resistance protein confers resistance to toxic gut microbial metabolite.Cell host & microbe · 2025Article
- Cryptosporidium parvum protease INS6 plays an important role in parasite proliferation and pathogenicity.PLoS neglected tropical diseases · 2025Article
- Exploring the impact of digestive physicochemical parameters of adults and infants on the pathophysiology of Cryptosporidium parvum using the dynamic TIM-1 gastrointestinal model.Gut pathogens · 2024Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
Cryptosporidium is a major cause of severe diarrhea. Although Cryptosporidium isolates exhibit significant differences in infectivity and virulence, the genetic determinants for these traits are not clear. In this study, we use classical genetics to cross two Cryptosporidium parvum isolates of different virulence and use bulk segregant analysis of whole-genome sequences from the progeny to identify quantitative trait loci (QTL) associated with Cryptosporidium infectivity and virulence. Of the 23 genes in three QTL, two have loss-of-function mutations in the low-virulence isolates, including the SKSR1 gene encoding a variant secretory protein. Deletion of the SKSR1 gene or expression of the frame-shifted sequence reduces the pathogenicity of the virulent isolate. SKSR1 is expressed in small granules and secreted into the parasite-host interface during invasion. These results demonstrate that SKSR1 is an important virulence factor in Cryptosporidium, and suggest that the extended SKSR protein family, encoded by clusters of subtelomeric genes, may contribute to pathogenesis.
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