Figure 7. HuR is not a suitable nucleolar marker in heat stressed cells.
HeLa cells were heat-shocked and immunostained for HuR and nucleolin. Nucleolin outperformed HuR for the compartment identification during heat shock and at 1 hour of recovery. After longer periods of recovery (2 and 3 hours), however, HuR identified nucleoli properly. Size bar: 20 µm.