abnormal nucleosome positioning at stress response genes increased nucleosome occupancy at CRE site increased nucleosome occupancy at CRE site during vegetative growth FYPO:0003909 2014-10-22T11:48:22Z increased nucleosome occupancy at CRE site during mitotic cell cycle midori A cellular process phenotype observed in the vegetative growth phase of the life cycle in which nucleosome occupancy is greater than normal at promoters containing CRE sites. Nucleosome occupancy measures the tendency for DNA in a given region to be packaged into nucleosomes.