Kenneth H. Kraemer is at the Basic Research Laboratory, National Cancer Institute, Bethesda, Maryland 20892-4258, USA. kraemerk@nih.gov
The nucleotide excision repair system is essential for repairing DNA damage caused by exposure to sunlight. Now, parallel studies in yeast and individuals with a rare disease called trichothiodystrophy have identified a new component of the DNA repair and basal transcription factor TFIIH.
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