Author/Authors :
Frederick G. Westhorpe، نويسنده , , Aaron F. Straight، نويسنده ,
Abstract :
The composition and structure of centromeric nucleosomes, which contain the histone H3 variant CENP-A, is intensely debated. Two independent studies in this issue, in yeast and human cells, now suggest that CENP-A nucleosomes adopt different structures depending on the stage of the cell cycle.