... UV light (UV) was performed 2 h before addition of actinomycinD. Degradation of histone mRNA was determined as in (A).5836 F. Bollig et al.(Eur. J. Biochem. 269) Ó FEBS 2002 for UV- induced ... lane1). Formation of two of the complexes increased withcytoplasmic extracts from UV- treated cells (Fig. 3A, lanes1–4). It has been reported recently that UV light inducestranslocation of the ... consisting of the ARE of GM-CSF or the AU-rich region of the IL-8 3¢-UTR (nucleotides972–1310). Where indicated, antibodies specific for HuR (0.75 lg),AUF1 (1 lL of a 1 : 10 dilution of serum)...