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Photolyase gene

The protein products of these two genes (hcryl, hcry2) lack photolyase activity. They too may encode cryptochromes.644... [Pg.1339]

Cryptochrome genes have been found in many organisms. In the fly Drosophila cryptochrome appears to interact directly with the clock proteins that control the circadian cycle. Most important are products of two genes per (period) and tim (timeless). They are helix-loop-helix DNA binding proteins that form heterodimers, are translocated to the nucleus, and repress their own transcription. Morning light leads to a rapid disappearance of e TIM protein. The cryptochrome CRY appears to react directly with TIM to inactivate it. However, details remain to be learned. " The circadian clock mechanism appears to be universal and the cryptochrome-2 mcryl gene) appears to function in the mouse. A human cDNA clone was found to have a 48% identity with a relative of cryptochromes, the (6-4) photolyase of Drosophila. [Pg.426]

Hoffman, RD., Batschauer, A., and Hays, J.B., PHHl, a novel gene from Arabidopsis thaliana that encodes a protein similar to plant blue-light photoreceptors and microbial photolyases. Mol. Gen. Genet, 253, 259, 1996. [Pg.2693]


See other pages where Photolyase gene is mentioned: [Pg.1340]    [Pg.486]    [Pg.1340]    [Pg.486]    [Pg.20]    [Pg.1339]    [Pg.1339]    [Pg.1339]    [Pg.476]    [Pg.487]    [Pg.486]    [Pg.950]    [Pg.360]    [Pg.726]    [Pg.426]    [Pg.426]    [Pg.427]    [Pg.950]    [Pg.405]    [Pg.405]    [Pg.406]    [Pg.170]    [Pg.77]    [Pg.91]    [Pg.2550]    [Pg.2685]    [Pg.2687]   
See also in sourсe #XX -- [ Pg.486 ]




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