Navigation Links
Tentacles of venom: New study reveals all octopuses are venomous

Once thought to be only the realm of the blue-ringed octopus, researchers have now shown that all octopuses and cuttlefish, and some squid are venomous. The work indicates that they all share a common, ancient venomous ancestor and highlights new avenues for drug discovery.

Conducted by scientists from the University of Melbourne, University of Brussels and Museum Victoria, the study was published in the Journal of Molecular Evolution.

Dr Bryan Fry from the Department of Biochemistry at the Bio21 Institute, University of Melbourne said that while the blue-ringed octopus species remain the only group that aredangerous to humans, the other species have been quietly using their venom for predation, such as paralysing a clam into opening its shell.

"Venoms are toxic proteins with specialised functions such as paralysing the nervous system" he said.

"We hope that by understanding the structure and mode of action of venom proteins we can benefit drug design for a range of conditions such as pain management, allergies and cancer."

While many creatures have been examined as a basis for drug development, cephalopods (octopuses, cuttlefish and squid) remain an untapped resource and their venom may represent a unique class of compounds.

Dr Fry obtained tissue samples from cephalopods ranging from Hong Kong, the Coral Sea, the Great Barrier Reef and Antarctica.

The team then analysed the genes for venom production from the different species and found that a venomous ancestor produced one set of venom proteins, but over time additional proteins were added to the chemical arsenal.

The origin of these genes also sheds light on the fundamentals of evolution, presenting a prime example of convergent evolution where species independently develop similar traits.

The team will now work on understanding why very different types of venomous animals seem to consistently settle on the similar venom p

Contact: Nerissa Hannink
University of Melbourne

Page: 1 2

Related biology news :

1. Childhood obesity indicates greater risk of school absenteeism, Penn study reveals
2. A study by the MUHC and McGill University opens a new door to understanding cancer
3. Study begins to reveal clues to the cause and progression of sepsis
4. Clones on task serve greater good, evolutionary study shows
5. New study warns limited carbon market puts 20 percent of tropical forest at risk
6. New study examines how rearing environment can alter navigation
7. Study links cat disease to flame retardants in furniture and to pet food
8. New continent and species discovered in Atlantic study
9. Study shows link between alcohol consumption and hiv disease progression
10. Feeling hot, hot, hot: New study suggests ways to control fever-induced seizures
11. Study finds environmental tests help predict hospital-acquired Legionnaires disease risk
Post Your Comments:
(Date:9/10/2015)... , Sept. 10, 2015 Pursuant ... Clinic Wellness to create an interactive, image-based health ... health and wellness kiosk.  The unique assessment quantifies ... a number that suggests an individual,s biological age ... values as measured by the kiosk. ...
(Date:9/8/2015)... , Sept. 8, 2015   TREW Marketing ... the new survey, Smart Marketing for Engineers TM ... 580 engineering professionals reveals insightful findings about engineers, preferences ... types of content engineers most value and trust, and ... Marketers targeting technical audiences grapple with how to ...
(Date:9/2/2015)... YORK , Sept. 2, 2015 ... key concern for enterprises, banks, government organizations, telecommunications, ... and numeric keypads were previously being used to ... introduction of two-factor authentication, wherein individuals could gain ... two different components, such as hardware devices and ...
Breaking Biology News(10 mins):
... "We can make you and we can break you." If ... oxide would start something like that. But this song wouldn,t ... of Rice chemist James Tour demonstrates an environmentally friendly way ... version of single-atom-thick graphene expected to find use in all ...
... A novel approach detects genetically abnormal cells in the blood ... in tumor cells and increase in number with the severity ... The University of Texas MD Anderson Cancer Center report in ... patients in the study also had many times the number ...
... A University of Minnesota Medical School research team led ... a novel approach to ease the chronic and acute ... a mouse model of SCD, Gupta and University of ... that exhibited both musculoskeletal pain and temperature sensitivity, symptoms ...
Cached Biology News:
(Date:10/8/2015)... , Oct. 8, 2015 Celemics, a global ... into the North American market with the establishment of ... and Europe , has secured ... Target Enrichment methodology and sample preparation for DNA sequencing ... both hereditary and somatic genetic testing more accurately, quickly, ...
(Date:10/8/2015)...  The ALS Association, in partnership with Prize4Life, is ... revolutionize communication technology solutions for people living with ALS. ... (amyotrophic lateral sclerosis) is a progressive neurodegenerative disease that ... spinal cord. Eventually, people with ALS lose the ability ... to total paralysis and death within two to five ...
(Date:10/8/2015)... ... October 08, 2015 , ... ... an exclusive license agreement to develop and commercialize intellectual property rights belonging to ... agreement from February 2009, and affords exclusive worldwide rights to intellectual property based ...
(Date:10/7/2015)... Texas (PRWEB) , ... October 07, 2015 , ... ... Institute ( ) will present a public educational seminar on the latest ... Saturday, October 10th from 1:00 pm – 3:00 pm at the Hilton Dallas/Southlake ...
Breaking Biology Technology:
... Merrimack Pharmaceuticals today announced that it will present at the Jefferies 2010 Global Life Sciences Conference ... provide a company overview at 11:00am EDT , Wednesday, June 9, 2010 at ... , , ... , , , ...
... June 1 Diplomat Specialty Pharmacy, the ... launch of Navigator Health Services, an independent division of ... pharmacy industry. The announcement was made by Diplomat Specialty ... who says that Navigator Health Services was formed in ...
... Calif. , June 1 Epeius Biotechnologies Corporation ( ... "Advanced Phase I/II Evaluation of Tumor-Targeted Gene Delivery: Intravenous Rexin-G as ... the ASCO Annual Meeting on June 8, 2010 . The ... Stanford University Medical Center, Palo Alto CA. ...
Cached Biology Technology:
... The Rapid-Screen cDNA Library Panels were ... just three sets of PCRs to identify ... analysis is performed in a 96-well "Master ... from 5,000 clones. Having identified the positive ...
Application: For use as a carrier in nucleic acid purification and precipitation. Physical form: Solution in 10 mM Tris HCl, pH 7.4, 1 mM EDTA Concentration: 9-11 mg/mL Physical Form: buffered aqu...
... Note: Prepared by a modification of ... al., Biotechnol. Bioeng., 11 ... unit will yield an A 260 ... of water (1 cm light path). ...
... Unique, compact measuring instrument for calibrating ... compact design and the robust carrying case, ... both in the laboratory and on-site at ... easy to use because the individual channels ...
Biology Products: