Article
A temperature-sensitive cell cycle arrest mutation affecting H1 phosphorylation and nuclear localization of a small heat shock protein in Tetrahymena thermophila.
Experimental cell research - 1 Dec 1993
Thatcher T H, Gorovsky M A
Abstract excerpt
This report describes a temperature-sensitive Tetrahymena thermophila cell cycle arrest mutant that is also deficient in its heat shock response. Mutants incubated at 41 degrees C undergo rapid dephosphorylation of macronuclear histone H1, in contrast to wild-type cells which hyperphosphorylate H1 under the same conditions. Dephosphorylation is specific to H1 and is associated with a threefold decrease in the...
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