Salmon calcitonin-like immunoactivity in extracts of Tetrahymena pyriformis.
Acid extracts of Tetrahymena pyriformis, a ciliated protozoan grown in defined medium revealed the presence of materials with salmon-type calcitonin immunoactivity. These findings add support to earlier reports of the presence of materials closely resembling vertebrate peptide hormones in unicellular microbes.
D000818:Animals; D005075:Biological Evolution; D002116:Calcitonin / Q000235:genetics / Q000276:immunology / Q000302:isolation & purification*; D013769:Tetrahymena pyriformis / Q000032:analysis* / Q000235:genetics / Q000276:immunology
C028815:salmon calcitonin; D002116:Calcitonin