Fig. 4. UV-induced colocalization of ING1 with PCNA but not with p53. Half of a set of Hs68 fibroblasts plated for 24 hours were treated with 25 J/m² of UV, fixed 2 hours later and stained for DNA, ING1 and PCNA (a-h), or for DNA, ING1 and p53 (panels i-p). Confocal microscopy and calculation of the degree of colocalization was as described in Materials and Methods. Bar, 10 µm.

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