Navigation Links
Cone of poison: The secret behind the cone snail's venom pump
Date:10/27/2010

Scientists have discovered the secret of how an amazing sea snail injects its venom after shooting a harpoon-like tooth into its prey or some unlucky swimmer at jetliner speeds. The creatures, called cone snails, use a highly specialized structure that instantly pumps the paralyzing venom through the tooth and into its target. Their study appears in ACS' monthly Journal of Proteome Research.

Helena Safavi-Hemami, Anthony Purcell and colleagues note that cone snails live mainly in the shallows of the world's tropical oceans. Prized by sea-shell collectors for their beautiful shells, the snails are up to 9 inches long. Their mouths have a blow-gun-like structure that shoots a barbed dart-like "tooth" at about 400 miles per hour. The tooth injects venom into fish, worms, or other prey. The snails occasionally sting swimmers, causing pain and sometimes death. They can reload the shooter with additional harpoons. The venom is produced in the venom duct, a long tube attached to the harpoon on one end and to the venom bulb in the snail's mouth.

The scientists' analysis of proteins in venom bulbs found high concentrations of arginine kinase, a protein that enables squid and scallops to swim away from danger with extreme speed. Its abundance in the bulb suggests that arginine kinase enables the venom bulb to undergo rapid, repeated contractions to quickly force the venom through the venom duct to the harpoon and into the prey, the scientists say. The scientists also identified specialized muscles in the venom bulb that appear to aid in this process.


'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Page: 1

Related biology news :

1. Poison: Its whats for dinner
2. Poison: Its whats for dinner
3. The secret life of Irelands smooth-hound sharks
4. Looking for secrets to drug addiction in our blood
5. Neutrons helping ORNL researchers unlock secrets to cheaper ethanol
6. Ancient brew masters tapped antibiotic secrets
7. Secrets of the gecko foot help robot climb
8. Frozen flies may yield secrets for human organ transplants
9. Unlocking the secrets of RNA biology with WIREs
10. The secret of life may be as simple as what happens between the sheets -- mica sheets
11. Scientists unlock secret of rabies transmission in bats
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/23/2015)... GARDENS, Fla. , June 23, 2015 ... identity management and authentication solutions, today announced enhanced ... strong, multi-factor authentication solution.  The enhancements build ... use of the DigitalPersona Altus platform and ... reader compatibility. In today,s environment ...
(Date:6/17/2015)... GERMANTOWN, Maryland , June 17, 2015 ...   Produktlinie mit DNA-Tests verbessert den Analyseprozess und ... QGEN ; Frankfurt Prime Standard: QIA) hat heute in ... Produktlinie Investigator ® für ... Die neuen Kits zur Erstellung genetischer Fingerabdrücke bieten eine ...
(Date:6/17/2015)... , June 17, 2015  Crossmatch™, a leading ... that its U.are.U ® 4500 fingerprint readers ... Eateries, Inc., a San Jose, ... to increase security, improve accountability and reduce fraud ... instant, non-repudiable identity confirmation for employee sign in ...
Breaking Biology News(10 mins):Crossmatch Releases Enhanced DigitalPersona Altus Advanced Authentication Functionality 2QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 2QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 3QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 4QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 5QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 6Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 2Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 3
... ARBOR, Mich. An early laboratory success is taking ... gland transplants that could one day prevent a currently ... The scientists were able to induce embryonic stem ... hormone essential to maintaining bone density. The laboratory results ...
... ANN ARBOR, Mich.---Brain implants that can more clearly record ... at the University of Michigan. The findings could eventually ... as Parkinson,s disease and paralysis. Neural electrodes must ... When the electrodes are implanted, the brain first reacts ...
... calling on Congress to support the Consistency, Accuracy, Responsibility ... (CARE bill), which would ensure that states set minimum ... bill (H.R. 3652) was introduced Sept. 28 in the ... "The introduction of the CARE bill ...
Cached Biology News:Stem cell success points to way to regenerate parathyroid glands 2A step toward better brain implants using conducting polymer nanotubes 2A step toward better brain implants using conducting polymer nanotubes 3SNM urges Congress to support CARE bill 2
(Date:6/29/2015)... (PRWEB) , ... June 29, 2015 , ... ... 7736892 B2. Under the terms of the agreement, MediVet will acquire the rights ... Cells (UCMSCs). MB-007 is currently in pre-clinical development as a potential next-generation treatment ...
(Date:6/29/2015)... , June 29, 2015  AACC, a global ... health through laboratory medicine, is pleased to announce ... Clinical Chemistry , has increased to 7.9 in ... increase places Clinical Chemistry in the ... the significant influence of the research it publishes ...
(Date:6/29/2015)... DALLAS , June 29, 2015 ... Type (DNA, RNA, XNA), by Application (Diagnostics, Therapeutics, R&D), by ... Biotechnology & Pharmaceutical Companies, CRO) - Global Forecast to 2020", ... reach $244.93 Million by 2020 from $107.56 Million in 2015, ... market T ables and 67 F ...
(Date:6/29/2015)... YORK , June 29, 2015   For the ... life sciences to assess their overall digital maturity called ... show that these companies are not maturing fast enough. ... healthcare industry in numerous ways overall and customers are ... in terms of digital customer engagement.  ...
Breaking Biology Technology:MediVet Biologics Acquires Exclusive Patent License from Kansas State University 2MediVet Biologics Acquires Exclusive Patent License from Kansas State University 3AACC's Journal, Clinical Chemistry, Continues to Have Significant Impact on Medical Testing, Healthcare 2AACC's Journal, Clinical Chemistry, Continues to Have Significant Impact on Medical Testing, Healthcare 3Aptamers Market Worth $244.93 Million by 2020 2Aptamers Market Worth $244.93 Million by 2020 3Aptamers Market Worth $244.93 Million by 2020 4Results from Digital Maturity Study Show Pharma Lagging 2Results from Digital Maturity Study Show Pharma Lagging 3Results from Digital Maturity Study Show Pharma Lagging 4
... Multiporator / Electroporator 2510 , , , , , , , ... Protocol No. 4308 915.521 02/2002 , , , ... , Microorganism , ... Cell type , Bacteria, gram positive, , ...
... , , , , Multiporator / Electroporator 2510 , , , ... Transformation Protocol , Protocol No. 4308 915.514 04/2002 , ... , , , , ... , Cell type , Bacteria, ...
... , , , , Multiporator / Electroporator 2510 , , , ... Transformation Protocol , Protocol No. 4308 915.511 04/2002 , ... , , , , ... , Cell type , Bacteria, gram ...
Cached Biology Technology:Mycobacterium intracellulare 2Escherichia coli K12 2Escherichia coli K12 3Escherichia coli C600 2Escherichia coli C600 3
Mouse monoclonal antibody raised against a partial recombinant STAU2. NCBI Entrez Gene ID = STAU2...
...
Mouse polyclonal antibody to NR2F2 - nuclear receptor subfamily 2, group F, member 2...
... Pack provides optimized blocking and wash ... Clarifier: Ready-to-use wash solutions have been ... Coated Slides for Microarrays (Product Code ... Buffer: 1L • Microarray Post Hybridization ...
Biology Products: