are blue light receptors linked to a flavin and pterine, and responsible for mediating various plant responses, such as regulation of circadian rhythms, depolarization of membranes, anthocyanins production, and other effects (Yu, Liu, Klejnot, & Lin, 2010).
According to the study published in the Federation of American Societies for Experimental Biology, a protein called cryptochrome
works to suppress inflammation while we're asleep but the effects wear off when we wake.
Molecules known as cryptochromes
, found within avian retinas, may be behind birds' uncanny navigational skills (SN: 5/9/09, p.
Differential regulation of mammalian period genes and circadian rhythmicity by cryptochromes
1 and 2," Proceedings of the National Academy of Sciences of the United States of America, vol.
Thus growth promotion by shorter bandwidths of blue light might require division and expansion of cells mediated by blue light receptors such as cryptochrome
(Liu et al.
In plants, light signals are first perceived by the photoreceptors containing phytochrome (PhyA, PhyB, PhyC, PhyD and PhyE) and cryptochrome
, which process the physical signals.
En mamiferos se han informado fenotipos de sueno para los genes activadores Clock y Bmall, asi como para los genes inhibidores Period (Per) y Cryptochrome
Both of these are transcriptional factors that regulate the expression of cryptochrome
(CRY1 and CRY2) and period (PER1, PER2, PER3) genes.
The research also shows that removing the light-receptor Cryptochrome
, an important component in synchronising the clock to the daily light changes, leads to the flies being more sensitive to temperature changes.
It found that a key protein, cryptochrome
, that regulates the biological clocks of plants, insects and mammals also regulates glucose production in the liver and that altering the levels of this protein could improve the health of diabetic mice.
Any protein that has a DNA sequence 25-50% similar to that of photolysis, but that lacks photolysis' ability to use blue light to repair UV-induced DNA damage, is called a cryptochrome
(Lin & Todo, 2005; Sancar, 2004).
1) The molecular mechanism of the cells of the master SCN clock, and also cellular oscillators in other nuclei in the brain and peripheral tissues and organs, consists of a discrete number of so-called clock genes--period (Per)1, Per2, Per3, Bmal, Clock, and Cryptochrome
(Cry)--and their clock gene products organized as interacting positive and negative transcription and translation feedback loops, with several auxiliary mechanisms reinforcing their robustness and stability.