Cryptosporidium Rhomboid Protease Phylogeny and Sporozoite Localization

Ilaria Vanni's 2026 study provides a phylogenetic, structural, and cellular localization analysis of rhomboid proteases in the parasite Cryptosporidium parvum. The work identifies three rhomboids (CpRom1, CpRom2, CpRom3) and compares them across Cryptosporidium species and other apicomplexans. It details their distinct spatial distributions in the invasive sporozoite stage and lists candidate substrate proteins.

Use Cases

• Phylogenetic classification of CpRom1, CpRom2, and CpRom3 based on catalytic site similarities to Toxoplasma and Plasmodium orthologs.
• Analysis of subcellular localization patterns for the three rhomboids within sporozoite cells, such as apical complex or surface distribution.
• Comparative genomics to identify the excision of the PARL-like rhomboid gene in intestinal Cryptosporidium species versus gastric species.
• Identification of 10 candidate membrane protein substrates for C. parvum rhomboids based on similarity to known apicomplexan substrates.

Strengths

• Analysis covers three specific rhomboid proteases (CpRom1, CpRom2, CpRom3) with detailed structural and phylogenetic comparison.
• Includes comparative data across Cryptosporidium species (C. parvum, C. muris, C. andersoni) and other apicomplexans (T. gondii, P. falciparum).

Limitations

• Dataset is a 71.3 KB PDF containing analysis results, not the underlying raw sequence or imaging data.
• Scope is limited to the specific rhomboid proteases of Cryptosporidium, not a genome-wide or proteome-wide survey.

Provenance

Source

figshare, authored by Ilaria Vanni.

Collection Method

Computational phylogenetic analysis, structural motif examination, and experimental cellular localization study.

Time Range

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Freshness

Last updated April 2026.

Geography

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