A tale of two serines: the effects of histone H2A mutations S122A and S129A on chromosome nondisjunction in Saccharomyces cerevisiae.

Abstract excerpt

Near the C-terminus of histone H2A in the yeast Saccharomyces cerevisiae, there are 2 serines (S122 and S129) that are targets of phosphorylation. The phosphorylation of serine 129 in response to DNA damage is dependent on the Tel1 and Mec1 kinases. In Schizosaccharomyces pombe and S. cerevisiae, the phosphorylation of serine 122 is dependent on the Bub1 kinase, and S. pombe strains with an alanine mutation of...

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