title: Prothymosin alpha is a nuclear protein.
abstract: The cellular location of the so-called 'thymic hormone' prothymosin alpha has been studied by microinjection into the cytoplasm of Xenopus oocytes, followed by separate monitoring of nuclear and cytoplasmic concentrations. It is shown that prothymosin alpha migrates to the nucleus at a rate comparable to that of histone H1. Prothymosin alpha cannot therefore be a hormone in the usual sense of the word.
authors.affiliation: Biophysics Laboratories, Portsmouth Polytechnic, England.
authors.forename: J D
authors.initials: JD
authors.lastname: Watts
authors.forename: P D
authors.initials: PD
authors.lastname: Cary
authors.forename: C
authors.initials: C
authors.lastname: Crane-Robinson
mesh_terms: D000818:Animals; D002417:Cattle; D002467:Cell Nucleus / Q000378:metabolism*; D003593:Cytoplasm / Q000378:metabolism; D004591:Electrophoresis, Polyacrylamide Gel; D005260:Female; D007457:Iodine Radioisotopes; D007700:Kinetics; D008845:Microinjections; D009865:Oocytes / Q000648:ultrastructure; D011498:Protein Precursors / Q000378:metabolism*; D013947:Thymosin / Q000031:analogs & derivatives* / Q000378:metabolism; D013950:Thymus Gland / Q000032:analysis; D014982:Xenopus laevis
chemical_list: D007457:Iodine Radioisotopes; D011498:Protein Precursors; C040782:prothymosin alpha; D013947:Thymosin