منابع مشابه
Blue light receptors and signal transduction.
A plant blue light response was documented as early as 1881 by Darwin when he discovered what is now known as the blue light–induced phototropic response (Darwin, 1881). However, blue light receptors mediating phototropism and other photoresponses in plants have remained elusive until recently. On the basis of molecular genetic studies in Arabidopsis, it is clear now that there are two types of...
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B and T lymphocytes, the antigen-specific cells of the immune system, are generally quiescent and require antigen stimulation to progress from the G0 stage of the cell cycle. The immune response to pathogens or foreign substances is initiated from clonotypic receptors on these cells that recognize the antigen and induce a series of signal transduction events. These signals are fundamental in bo...
متن کاملRole of structural plasticity in signal transduction by the cryptochrome blue-light photoreceptor.
Cryptochromes are blue-light photoreceptors that regulate a variety of responses such as growth and circadian rhythms in organisms ranging from bacteria to humans. Cryptochromes share a high level of sequence identity with the light-activated DNA repair enzyme photolyase. Photolyase uses energy from blue light to repair UV-induced photoproducts in DNA through cyclic electron transfer between th...
متن کاملStructure of a bacterial BLUF photoreceptor: insights into blue light-mediated signal transduction.
Light is an essential environmental factor, and many species have evolved the capability to respond to it. Blue light is perceived through three flavin-containing photoreceptor families: cryptochromes, light-oxygen-voltage, and BLUF (sensor of blue light using flavin adenine dinucleotide, FAD) domain proteins. BLUF domains are present in various proteins from Bacteria and lower Eukarya. They ar...
متن کاملCrystal structures of the AppA BLUF domain photoreceptor provide insights into blue light-mediated signal transduction.
Proteins containing a sensor of blue light using FAD (BLUF) domain control diverse cellular processes, such as gene expression, nucleotide metabolism and motility, by relaying blue light signals to distinct output units. Despite its crucial and widespread functions, the mechanism of BLUF signal transduction has remained elusive. We determined crystal structures of the dark-adapted state and of ...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1993
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.102.2.333