A
DNA repair enzyme which recognizes and removes
dimers that have formed between
pyrimidine nitrogenous bases on the same strand as each other, as a result of too much
ultraviolet radiation. The
enzyme can only do this if
visible light is present. It is also called a
photoreactivating enzyme.
From the BioTech Dictionary at http://biotech.icmb.utexas.edu/. For further information see the BioTech homenode.