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Strongyloides ratti (Threadworm) (S_ratti_ED321_v5_0_4)

NOTE: The genome sequence and annotation for S. ratti are updated in Ensembl Metazoa infrequently. The data here corresponds with WormBase WS279. For the latest genome and annotation, please visit WormBase ParaSite (for an Ensembl-oriented view), or WormBase.

About Strongyloides ratti

The nematode Strongyloides ratti is a common gastro-intestinal parasite of the rat. The adult parasites are female only, about 2mm long and live in the mucosa of the small intestine. These parasites produce eggs that pass out of the host in its faeces. In the environment infective larval stages develop either directly or after a facultative sexual free-living adult generation. Infective larvae infect hosts by skin penetration.

S. ratti is the laboratory model of the parasite of humans, S. stercoralis. S. stercoralis is a wide-spread parasite of humans, occurring principally in the tropics and sub-tropics: some 100-200 million people are infected worldwide. Infection of immunosuppressed individuals can result in disseminated strongyloidiasis, in which worms occur throughout the body. This can be fatal unless anti-Strongyloides therapy is given. Other species of Strongyloides parasitise a wide range of vertebrates.

Picture credit: Copyright Mark Viney 2023 - Reference [2]

Taxonomy ID 34506

Data source Wellcome Sanger Institute

More information and statistics

Genome assembly: S_ratti_ED321_v5_0_4

More information and statistics

Download DNA sequence (FASTA)

Display your data in Ensembl Metazoa

Gene annotation

What can I find? Protein-coding and non-coding genes, splice variants, cDNA and protein sequences, non-coding RNAs.

More about this genebuild

Download genes, cDNAs, ncRNA, proteins - FASTA - GFF3

Update your old Ensembl IDs

Comparative genomics

What can I find? Homologues, gene trees, and whole genome alignments across multiple species.

More about comparative analyses

Phylogenetic overview of gene families

Download alignments (EMF)


This species currently has no variation database. However you can process your own variants using the Variant Effect Predictor:

Variant Effect Predictor