Biomaterial Database

Ultrastructural localization of basic proteins on the conoid, rhoptries and micronemes of Toxoplasma gondii. 1978

W de Souza, and T Souto-Padrón

The ethanolic phosphotungstic acid (E-PTA) technique was used to locate basis proteins in trophozoites of Toxoplasma gondii, obtained from the peritoneal exudate of infected mice. The reaction was observed mainly on the conoid, rhoptries, and micronemes of both extracellular and intracellular parasites. The strongest reaction was observed on rhoptries. Nuclei and ribosomes from parasites and host cells also reacted. The role of basic proteins on rhoptries and micronemes is discussed with a view on host-cell penetration by the parasite.

UI	MeSH Term	Description	Entries
D011506	Proteins	Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein.	Gene Products, Protein,Gene Proteins,Protein,Protein Gene Products,Proteins, Gene
D006651	Histocytochemistry	Study of intracellular distribution of chemicals, reaction sites, enzymes, etc., by means of staining reactions, radioactive isotope uptake, selective metal distribution in electron microscopy, or other methods.	Cytochemistry
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001202	Ascitic Fluid	The serous fluid of ASCITES, the accumulation of fluids in the PERITONEAL CAVITY.	Peritoneal Effusion,Peritoneal Fluid,Ascitic Fluids,Effusion, Peritoneal,Fluid, Ascitic,Fluid, Peritoneal,Peritoneal Effusions,Peritoneal Fluids
D014122	Toxoplasma	A genus of protozoa parasitic to birds and mammals. T. gondii is one of the most common infectious pathogenic animal parasites of man.	Toxoplasma gondii,Toxoplasma gondius,Toxoplasmas,gondius, Toxoplasma
D014124	Toxoplasmosis, Animal	Acquired infection of non-human animals by organisms of the genus TOXOPLASMA.	Animal Toxoplasmoses,Animal Toxoplasmosis,Toxoplasmoses, Animal
D051379	Mice	The common name for the genus Mus.	Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus