title: Amount of DNA produced during extra S phases in Tetrahymena.
abstract: A protein mixture named LTx, was released from human tonsillar lymphocytes, when incubated at 37 degrees C in either "individual" or "mixed" cultures. LTx caused a decrease in the incorporation of 14-C- labelled amino acids of the target lymphocytes, while the release of 51- Cr from labelled target cells increased. Target cells were found to bind the "toxic" protein.
mesh_terms: D000818:Animals; D001345:Autoradiography; D002455:Cell Division; D004247:DNA / Q000096:biosynthesis*; D004261:DNA Replication; D006358:Hot Temperature; D013053:Spectrophotometry; D013769:Tetrahymena pyriformis / Q000502:physiology*; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D014316:Tritium; D004247:DNA; D013936:Thymidine