In somatic cells, these phases are separated by gaps: G1 (unreplicated chromosomes) and G2 (replicated ... in the mammalian cell cycle is another irreversible transition (G0–G1) that can be ...

The stain can be applied to live, detergent-permeabilized or fixed cells for quantification of their distribution among the three main phases of the cell cycle (G 0 /G 1, S and G 2 /M).

Researchers observed an increase in both CXCR4 and CD5 levels as the cells progressed to later stages of the cell cycle, particularly in the S/G2/M phases.