Light Signal Transduction
Research News and Information

Monday, November 23, 2009

Phototransduction motifs and variations.

14 Oct 2009 Seeing begins in the photoreceptors, where light is absorbed and signaled to the nervous system. Throughout the animal kingdom, photoreceptors are diverse in design and purpose. Nonetheless, phototransduction-the mechanism by which absorbed photons ... Read more...

RGS9 concentration matters in rod phototransduction.

14 Sep 2009 The transduction of light by retinal rods and cones is effected by homologous G-protein cascades whose rates of activation and deactivation determine the sensitivity and temporal resolution of photoreceptor signaling. In mouse rods, the ... Read more...

Different role of the Jalpha helix in the light-induced activation of the LOV2 domains in various phototropins.

16 Aug 2009 Phototropins (phot) are blue light receptors in plants which are involved in phototropism, stomatal opening, and chloroplast movements. Phototropin has two LOV domains (LOV1 and LOV2), and the LOV2 domain is responsible for activation of Ser/Thr ... Read more...

Latest indexed articles for 'Light Signal Transduction'

These are the very latest articles for this heading:

• Phototransduction motifs and variations. 14 Oct 2009
• RGS9 concentration matters in rod phototransduction. 14 Sep 2009
• Different role of the Jalpha helix in the light-induced activation of the LOV2 domains in various phototropins. 16 Aug 2009
• The 9-methyl group of retinal is essential for rapid Meta II decay and phototransduction quenching in red cones. 30 Jul 2009
• Genetics and the brain: many pathways to enlightenment. 29 Jun 2009
• Melanopsin bistability: a fly's eye technology in the human retina. 22 Jun 2009
• Differential petiole growth in Arabidopsis thaliana: photocontrol and hormonal regulation. 22 Jun 2009
• Growth factor receptor-bound protein 14 undergoes light-dependent intracellular translocation in rod photoreceptors: functional role in retinal insulin receptor activation. 21 Jun 2009
• Protein conformational changes in the bacteriorhodopsin photocycle: comparison of findings from electron and X-ray crystallographic analyses. 31 May 2009
• Inverted rod nuclei see the light. 30 May 2009
• Integrated and dispersed photon echo studies of nitrile stretching vibration of 4-cyanophenol in methanol. 26 May 2009
• Light-transduction in melanopsin-expressing photoreceptors of Amphioxus. 16 May 2009
• Lateral gain control in the outer retina leads to potentiation of center responses of retinal neurons. 11 May 2009
• Rod phototransduction determines the trade-off of temporal integration and speed of vision in dark-adapted toads. 4 May 2009
• In vivo sensitivity of blue-light-dependent signaling mediated by AppA/PpsR or PrrB/PrrA in Rhodobacter sphaeroides. 22 Apr 2009
• Light-at-night, circadian disruption and breast cancer: assessment of existing evidence. 18 Apr 2009
• Nr2e3-directed transcriptional regulation of genes involved in photoreceptor development and cell-type specific phototransduction. 16 Apr 2009
• Light signal transduction pathway from flavin chromophore to the J alpha helix of Arabidopsis phototropin1. 6 Apr 2009
• Understanding phototropism: from Darwin to today. 6 Apr 2009
• [The role of retinal pigment epithelium in visual functions] 30 Mar 2009

See a longer list of these articles.

Technical information about 'Light Signal Transduction'

Definition: The conversion of absorbed light energy into molecular signals

Descriptor UI: D055537

Alternative terms: Light Signal Transduction; Transduction, Light Signal; Signal Transduction, Light; Phototransduction;

Related Mesh Headings: Photoreceptors, Microbial; Photoreceptors, Plant;

Allowable Qualifiers: drug effects; genetics; immunology; physiology; radiation effects;

Tree Number: G02.111.087.800.480; G02.149.115.800.480; G04.299.880.480;

History Note: 2009

Technical Notes: phototransduction in plants or microorganisms or non-image forming/non-visual phototransduction goes here; PHOTOTRANSDUCTION, VISUAL see VISION, OCULAR is also available