Navigation Links
NYU biologists use Sinatra-named fly to show how to see the blues -- and the greens
Date:10/9/2011

over the lifetime of an organism. Because Rhodopsins are continually produced in the eye, the researchers wanted to know what keeps each photoreceptor from starting to make the wrong Rhodopsin later in life. Their findings showed that, in fact, the Rhodopsin itself can prevent the gene encoding another Rhodopsin from turning on incorrectly.

The researchers observed that, in mutant flies that have a non-functioning Rhodopsin6 (green-sensitive) gene, the photoreceptors that would have normally produced this Rhodopsin instead slowly start to make the blue-sensitive Rhodopsin5. After two weeks, essentially all of these photoreceptors were observed making the blue Rhodopsin. The authors named one of the mutations in Rhodopsin6 gene "Frank Sinatra" because presumably it makes old eyes more sensitive to blue lightthey don't actually become blue in color.

These findings showed, then, that in normal flies, green Rhodopsin6 maintains repression of the blue Rhodopsin5 gene. This result is surprisingpreviously, it had not been known that Rhodopsins could control how other Rhodopsins are made.

The neurons governing our sense of smell are organized in a similar fashion. Once each olfactory neuron, which is responsible for this sense, makes a functional olfactory receptor protein, that receptor can prevent other genes encoding different olfactory receptors from being turned on in the same cell.

While the researchers did not investigate what brings about this change in Rhodopsins, they think of this as a maintenance mechanism that prevents cells from having blue and green Rhodopsins together.

"The two types of photoreceptors could be connected to different neuronal circuits in the brain which interpret the information they receive from photoreceptors as being about blue or green light," noted Daniel Vasiliauskas, the leading author of the paper and a post-doctoral fellow at NYU. "Thus changing the Rhodopsin that a photoreceptor make
'/>"/>

Contact: James Devitt
james.devitt@nyu.edu
212-998-6808
New York University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. FSU biologists fish for reasons behind endangered groupers comeback
2. Pitt biologists find surprising number of unknown viruses in sewage
3. UC San Diego biologists discover genes that repair nerves after injury
4. Biologists discovery may force revision of biology textbooks
5. Team led by IU biologists confirms sunflower domesticated in US, not Mexico
6. Open minded and open access: NeoBiota, a new publishing platform for invasion biologists
7. Plant biologists dissect genetic mechanism enabling plants to overcome environmental challenge
8. Cell biologists hail stem cell decision
9. Software helps synthetic biologists customize protein production
10. Biologists discover an evening protein complex that regulates plant growth
11. Purdue biologists identify new strategy used by bacteria during infection
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/29/2014)... type and number of connections in transcription factor networks ... in a study published in PLOS Computational Biology ... assortativity signature contributes to a network,s resilience against mutations. ... out-out assortativity of TFN models has a greater effect ... types of assortativity," said Dov A. Pechenick, PhD, lead ...
(Date:8/29/2014)... twist them, fold them: modern materials that are light, ... as artificial skin or electronic paper. , Making such ... but a new way of working with copper nanowires ... , Previous success in the field of ultra-lightweight ... precious gold and silver nanowires. , By turning ...
(Date:8/28/2014)... an expansion of marine protected areas is needed to ... According to investigators from the Wildlife Conservation Society and ... on saving the largest numbers of species, often at ... difficult-to-replace ecological functions. , Many vital ecological ... that also are food for millions of people. ...
Breaking Biology News(10 mins):Assortativity signatures of transcription factor networks contribute to robustness 2Copper shines as flexible conductor 2Study finds marine protected areas inadequate for protecting fish and ocean ecology 2
... EUGENE, Ore. -- Using new optical equipment, a ... of virtual reality, monitored both their behavior and brain ... brain operates as it moves. The new research ... Scientific Instrumentation Inc. (ASI) -- should help neuroscientists around ...
... largest celebration of science and engineering, the USA ... D.C., April 28-29, 2012. For the second year, ... hands-on experiments. At Carnegie,s booth last year, visitors ... produced by our high pressure lab, touched the ...
... organisms, germ cells give rise to gametes and serve ... germ cell development is the decision to leave mitosis ... eggs and sperm. Germ cell development involves unique gene ... ensure success during fertilization and embryo development. Written ...
Cached Biology News:Worm-tracking challenge leads to new tool for brain research 2Worm-tracking challenge leads to new tool for brain research 3Carnegie partners with USA Science & Engineering Festival for second year 2Carnegie partners with USA Science & Engineering Festival for second year 3
(Date:8/28/2014)... 2014  Next month, executives from clinical trial marketing firm ... beginning with Patient-Centered Clinical Trials 2014 , to be ... , September 4-5. Patient recruitment experts Bonnie A. ... will share insights on the benefits of employing an ... – from media to mobile apps – can be used ...
(Date:8/28/2014)... , Aug. 28, 2014  Armetheon, Inc. ( ... novel mid- to late-stage cardiovascular drug candidates, today ... its first round of financing. The Series A ... Hercules Bioventures with participation from investors that included ... executive, Dr. Larry Hsu , the founder ...
(Date:8/28/2014)... (PRWEB) August 28, 2014 A ... around the world is available from Strategic Consulting, ... companies. “ Industrial Microbiology Market Review, Fourth Edition: ... Market ” (IMMR—4) tracks and compares microbiology test ... North America, Europe and Asia, and forecasts future ...
(Date:8/28/2014)... CA (PRWEB) August 28, 2014 ... is offering a promotion for Eppendorf Safe ... customers to purchase the highest quality tubes at ... are ideal for customers doing chemical, medical, pharmaceutical, ... technicians who are not regularly able to afford ...
Breaking Biology Technology:BBK Worldwide Leads Sessions at Key September Events 2Armetheon Completes $7.0 Million Series A Financing 2Armetheon Completes $7.0 Million Series A Financing 32 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 3Eppendorf Safe Lock Centrifuge Tube Promotion Now Available at Major Pipette Distributor Pipette.com 2Eppendorf Safe Lock Centrifuge Tube Promotion Now Available at Major Pipette Distributor Pipette.com 3
... EDMONTON, April 22 /PRNewswire-FirstCall/ - Quest PharmaTech ... announce that it will receive,generous support from ... (SDT) for oncology applications., Sonodynamic Therapy ... in,Hypocrellin-based photodynamic therapy for oncology and skin ...
... $250,000 under March ... ... BMRX), a leading developer and supplier of consumer-based,finger-activated products, today announced ... personnel of Sequiam,Corporation (OTC Bulletin Board: SQUME) through a previously announced,agreement ...
... Conn., April 22 Rib-X Pharmaceuticals, Inc.,("Rib-X" ... on the,discovery and development of novel antibiotics ... that Graham Johnson,Ph.D., Chief Research Officer and ... Cambridge Healthtech Institute,s 2nd Annual "The,Challenge of ...
Cached Biology Technology:Quest PharmaTech Receives Support from National Research Council's Industrial Research Assistance Program (NRC-IRAP) to develop Ultrasound Technology for the Treatment of Cancer 2bioMETRX, Inc. Initiates Integration of Personnel and Assets of Sequiam Corp. 2Rib-X Pharmaceuticals to Present at Cambridge Healthtech Institute's 2nd Annual Challenge of Antibacterial Development Conference 2
TGF-beta 1,-2,-3 MAb (Clone 1D11)...
Request Info...
Mouse monoclonal [B314.1 (MAC 387)] to Macrophage L1 protein Calprotectin (rating: ****) ( Abpromise for all tested applications)....
Human/Mouse/Rat AMPK beta 1 Affinity Purified Polyclonal Ab...
Biology Products: