Navigation Links
Study reveals a mechanism for mate selection
Date:4/18/2010

This release is available in French.

Montreal, April 18, 2010 A mystery about the mechanism behind sexual mate selection has been resolved. According to a new study published in the journal Nature, Universit de Montral researchers have discovered a molecular switch that becomes activated in response to a potential mate's signal. Simply put, an organism knows that a potential mate is close-by and healthy enough to mate.

"This mating decision is controlled by a simple chemical switch that converts an incoming pheromone signal into a cellular response," says senior author Stephen Michnick, a Universit de Montral biochemistry professor and Canada Research Chair in Integrative Genomics.

"As pheromone signal increases, two enzymes in the cell begin to compete with each other, one adding, the other removing a chemical modification on a protein called Ste5," continues Dr. Michnick, noting that at a critical threshold of pheromone signal, one of the enzymes overwhelms the others' capacity to modify Ste5, triggering a sudden, switch-like cascade of chemical messages to be delivered to the cell to say it's time to mate. The findings were made in collaboration with physicist Peter Swain, of McGill University and the University of Edinburgh, and his postdoctoral fellow Vahid Shahrezaei, now a lecturer at Imperial College London, U.K. They were able to describe with mathematical precision how this switch works to drive the mating decision.

The research team used a single cell organism, i.e. yeast used to leaven bread, for their study. "Although yeast is dramatically different from people, at a molecular and cellular level we have a lot in common," says Dr. Michnick. "The same molecules that create the switching decision in yeast are found in very similar forms in human cells. Similar switching decisions to those made by yeast are made
'/>"/>

Contact: Sylvain-Jacques Desjardins
sylvain-jacques.desjardins@umontreal.ca
514-343-7593
University of Montreal
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study pins factors behind geography of human disease
2. Global study shows health joins green as business strategy
3. U of I study: Lack of omega-3 fatty acid linked to male infertility
4. U of I study: Lack of omega-6 fatty acid linked to severe dermatitis
5. McMaster study unveils lifeline for antibiotic of last resort
6. FSU marine ecologist wins grant to study endangered sawfish
7. Pitt-led international study identifies human enzyme that breaks down potentially toxic nanomaterials, opens door to novel drug delivery
8. Pitt-led study identifies human enzyme that breaks down potentially toxic nanomaterials
9. BUSPH study links rheumatoid arthritis to vitamin D deficiency
10. 4,000-year study supports use of prescribed burns in Southern Appalachians
11. New study shows rising water temperatures in US streams and rivers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/11/2014)... 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition of ... report to their offering. One ... adoption of multimodal biometric systems. Multimodal biometric systems ... for verification and identification purposes. This helps to ...
(Date:12/10/2014)...  Valencell, a leader in performance biometric data sensor ... from its licensees for highly accurate, clinically validated biometric ... coming from fitness and health sectors, but first responders/military ... is only as useful as the biometric data it ... in long-term mass consumer adoption of wearable products," said ...
(Date:12/10/2014)... , December 9, 2014 ... ITN,s BCARD Platform   ... enterprise meeting scheduling solutions for business-to-business (B2B) events, ... world leader in mobile near-field communication (NFC), Bluetooth ...      (Logo: http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow ...
Breaking Biology News(10 mins):Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3
... animals at the zoo and in children,s books, but ... they harbor a "fossil" copy of a gene that ... fevers and are the most lethal viruses known to ... BMC Evolutionary Biology , the paper ("Filoviruses are ancient ...
... Weizmann Institute in Israel, has been chosen as the recipient ... The prize, accompanied by 1,000, is being awarded by Springer,s ... author of numerous articles in this journal. The EPJE ... the Nobel laureate who founded EPJE, has been awarded to ...
... , This release is available in Spanish ... with a vexing tendency to develop resistance to insecticides. But ... Agricultural Research Service (ARS) and University of California-Riverside (UCR) scientists ... chemical sex attractant, or pheromone, which could set the stage ...
Cached Biology News:Wallabies and bats harbor 'fossil' genes from the most deadly family of human viruses 2Pear pest's chemical 'come hither' identified 2
(Date:12/19/2014)... 2014 BioPlus Specialty Pharmacy ... pharmacies, has an expanded team of Regional Pharmaceutical ... for prescriber offices in their regions, with specific ... have a variety of Regional Pharmaceutical Care Liaisons ... in hepatitis C help prescribers understand all the ...
(Date:12/19/2014)... Ed Bilsky, Ph.D., vice president for ... Excellence in the Neurosciences (CEN), and professor of pharmacology ... as a member of the prestigious Dana Alliance for ... Maine to receive this honor. , The Dana ... the Dana Foundation. Its mission is to advance ...
(Date:12/19/2014)... 2014 In contrast to traditional LED ... various colors, Valoya uses proprietary LED technology to incorporate ... possible uniformity which is critical in low proximity installations. ... accuracy throughout its lifetime which is up to four ... , "The investment cost was clearly higher when compared ...
(Date:12/19/2014)... , Dec. 18, 2014  Decision Resources Group ... dental biomaterial market will grow moderately through 2023 as ... and growing awareness of dental biomaterials all spur procedure ... such as China and ... bring dental procedures within reach for a larger proportion ...
Breaking Biology Technology:BioPlus Specialty Pharmacy Expands ‘Regional Pharmaceutical Care Liaison’ Team 2BioPlus Specialty Pharmacy Expands ‘Regional Pharmaceutical Care Liaison’ Team 3UNE's Ed Bilsky Named Member of Dana Alliance for Brain Initiatives 2UNE's Ed Bilsky Named Member of Dana Alliance for Brain Initiatives 3Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 3
... Dyadic International, Inc. (Pink Sheets: DYAI) ("Dyadic"), a leading-edge ... Executive Officer, Mark Emalfarb , is scheduled to present ... in London, England on Monday, May 17, ... 6:05 a.m. EDT ). Mr. Emalfarb will discuss how Dyadic ...
... LAS VEGAS , May 10 /PRNewswire-FirstCall/ - Mr. ... , , ... that IGEN has signed an exclusive distribution license agreement with Machlink ... technology in wireless broadband Internet. MLI,s,s unique technology, utilizing Ultra High ...
... Therapeutics, Inc. (Nasdaq: OREX ), a biopharmaceutical company focused on the treatment of obesity, today announced that ...   , , , ... Time:  8:30am Pacific Time , ... San Francisco , , , ...
Cached Biology Technology:Dyadic International to Present at Rodman & Renshaw 6th Annual Global Healthcare Conference 2IGEN Networks signs Exclusive Agreement with Machlink, for wireless technology with high-speed Internet, phone and data applications 2IGEN Networks signs Exclusive Agreement with Machlink, for wireless technology with high-speed Internet, phone and data applications 3Orexigen(R) Therapeutics to Speak at Ninth Annual JMP Securities Research Conference 2
... SpeedVac™ Concentrators set the standard for sample concentration ... with large chamber uses a combination of centrifugal ... in a single run. , SC210A comes equipped ... for long lasting chemical compatibility ...
Digital display of time, vacuum and temperature , Dual vacuum control of ramping rate and ultimate level , Comes complete with RH40-12 (40 x 1.5 ml) Rotor and (2) Glass Condensation Flasks. ...
... series of vacuum concentrators/centrifugal evaporators offers a ... to rapid and safe concentration of heat-labile ... with oil-free or high vacuum pumps, a ... selection of rotors (eliminating sample loss by ...
... George Paxinos Affiliation: School of Psychology, The University ... Affiliation: Curtin University of Technology, Perth, Australia This ... of the rat brain. It is a ... revison and extension of the compact 3rd edition. ...
Biology Products: