ArticlePLoS biology2019
A photoactivatable crosslinking system reveals protein interactions in the Toxoplasma gondii inner membrane complex.
Article in PLoS biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed, 41 citations in OpenAlex.
- Identification and characterization of factors that govern apicoplast segregation in Toxoplasma gondii.Nature communications · 2026Article
- Toxoplasma IMC1 is a central component of the subpellicular network and plays critical roles in parasite morphology, replication, and infectivity.PLoS pathogens · 2026Article
- Article
- Mapping amBio · 2025Article
- Co-dependent formation of themBio · 2025Article
- Function and interactions of a protein bridge between the inner membrane complex and subpellicular microtubules inMolecular biology of the cell · 2025Article
- Proteolytic processing and host nuclear targeting of the novel effector GRA84 inMolecular biology of the cell · 2025Article
- An inner membrane complex protein IMC1g inmBio · 2025Article
- Malaria Cytoskeletal Proteins Require Alveolin-Alveolin Interactions for Differential Localization: Recruitment and Organization of Alveolin Proteins.Cellular microbiology · 2025Article
- Characterization and functional analysis ofmBio · 2024Article
- TgLaforin, a glucan phosphatase, reveals the dynamic role of storage polysaccharides inbioRxiv : the preprint server for biology · 2024Article
- Alveolin proteins in the Toxoplasma inner membrane complex form a highly interconnected structure that maintains parasite shape and replication.PLoS biology · 2024Article
- BCC0 collaborates with IMC32 and IMC43 to form the Toxoplasma gondii essential daughter bud assembly complex.PLoS pathogens · 2024Article
- Co-dependent formation of thebioRxiv : the preprint server for biology · 2024Article
- Systematic characterization of all Toxoplasma gondii TBC domain-containing proteins identifies an essential regulator of Rab2 in the secretory pathway.PLoS biology · 2024Article
- A candidate virulence factor of Eimeria tenella (EtROP30) predicted by virulence enhancement of transgenic Toxoplasma gondii.Parasitology research · 2023Article
- ThemSphere · 2023Article
- Identification of IMC43, a novel IMC protein that collaborates with IMC32 to form an essential daughter bud assembly complex in Toxoplasma gondii.PLoS pathogens · 2023Article
- Genetically encoded crosslinkers to address protein-protein interactions.Protein science : a publication of the Protein Society · 2023Review
- IMC29 Plays an Important Role inmBio · 2023Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
The Toxoplasma gondii inner membrane complex (IMC) is an important organelle involved in parasite motility and replication. The IMC resides beneath the parasite's plasma membrane and is composed of both membrane and cytoskeletal components. Although the protein composition of the IMC is becoming better understood, the protein-protein associations that enable proper functioning of the organelle remain largely unknown. Determining protein interactions in the IMC cytoskeletal network is particularly challenging, as disrupting the cytoskeleton requires conditions that disrupt protein complexes. To circumvent this problem, we demonstrate the application of a photoreactive unnatural amino acid (UAA) crosslinking system to capture protein interactions in the native intracellular environment. In addition to identifying binding partners, the UAA approach maps the binding interface of the bait protein used for crosslinking, providing structural information of the interacting proteins. We apply this technology to the essential IMC protein ILP1 and demonstrate that distinct regions of its C-terminal coiled-coil domain crosslink to the alveolins IMC3 and IMC6, as well as IMC27. We also show that the IMC3 C-terminal domain and the IMC6 N-terminal domain are necessary for binding to ILP1, further mapping interactions between ILP1 and the cytoskeleton. Together, this study develops a new approach to study protein-protein interactions in Toxoplasma and provides the first insight into the architecture of the cytoskeletal network of the apicomplexan IMC.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.