The local UV irradiation technique enables detection, kinetic measurements of recruitment, and quantification of DNA Damage Response (DDR) proteins at the site of UV-induced DNA damage.Using Isopore filters with high density pores of a broad range of sizes, it is possible to UV irradiate and damage only a very small portion of the nucleus of a cell by letting UV light pass only through the pores. Immunofluorescent analyses of modified DNA nucleotides, proteins, or fluorescently tagged versions of target factors can be used as markers to label and study UV-induced lesions and their repair.
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