HOME >> BIOLOGY >> NEWS
A switch that makes a blood clot sticky found within the platelet membrane

to determine which amino acids are responsible for activating GPIIb-IIIa by substituting a 'wrong' amino acid at spaces along the  protein chain and expressing the mutant protein in cells growing in culture. They found that the transmembrane portion of one of the GPIIb-IIIa subunits is responsible for responding to activation signals and, in return, causing groups of the activated integrin to cluster.

"Remarkably, these regions are evolutionarily conserved V meaning the transmembrane region in GPIIb-IIIa is the same in apes or rabbits or mice as they are in humans," said Bennett. "That tells us that the sequences of the transmembrane region of integrins are important factors in how these proteins function."

Moreover, nearly every integrin has a different transmembrane region made up of a unique amino acid sequence. If the transmembrane regions of all integrins work on a similar scheme, it would provide a new paradigm for the function of integrins and other cell membrane proteins.

"Integrin receptors are more than just a cellular form of Velcro V as integrins bind, they can also generate signals that command a cell to act, such as whether to divide or differentiate or to produce an important protein such as a gene transcription factor," said Bennett. "It will be interesting, and even medically important, to determine how these signals can be modulated."

Other scientists involved in the research paper described here include Renhao Li, Neal Mitra, Holly Gratkowski, Gaston Vilaire, Reustem Litvinov, Chandrasekaran Nagasami, John Weisel, James D. Lear, and William F. DeGrado from Penn.


'"/>

Contact: Greg Lester
lesterg@uphs.upenn.edu
215-349-5658
University of Pennsylvania School of Medicine
1-May-2003


Page: 1 2

Related biology news :

1. Researchers find color sensitive atomic switch in bacteria
2. Rice finds on-off switch for buckyball toxicity
3. Plant-like enzyme acts as key life cycle switch in malaria parasite
4. Shared gene switch for all plants found
5. EMBL researchers discover key molecular switch in eye development of medaka fish
6. Genetic master switch sends bacteria toward seafood dinner
7. Scientists switch components in cell circuits: Possible new technology, therapy
8. Crabs switch skeleton types
9. The mechanical switch in the ear
10. The structure behind the switch
11. Oxygen key switch in transforming adult stem cells from fat into cartilage

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/16/2016)... YORK , May 16, 2016   EyeLock ... solutions, today announced the opening of an IoT Center ... to strengthen and expand the development of embedded iris ... an unprecedented level of convenience and security with unmatched ... authenticate one,s identity aside from DNA. EyeLock,s platform uses ...
(Date:5/3/2016)...  Neurotechnology, a provider of high-precision biometric identification ... Identification System (ABIS) , a complete system for ... can process multiple complex biometric transactions with high ... face or iris biometrics. It leverages the core ... MegaMatcher Accelerator , which have been used in ...
(Date:4/26/2016)... LONDON , April 26, 2016 ... a product subsidiary of Infosys (NYSE: ... to integrate the Onegini mobile security platform with ... http://photos.prnewswire.com/prnh/20151104/283829LOGO ) The integration will ... to access and transact across channels. Using this ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... SPRING, Md. , June 23, 2016 A ... collected from the crime scene to track the criminal down. ... and the U.S. Food and Drug Administration (FDA) uses DNA ... Sound far-fetched? It,s not. The ... genome sequencing to support investigations of foodborne illnesses. Put as ...
(Date:6/23/2016)... -- The Biodesign Challenge (BDC), a university competition that asks ... systems and biotechnology, announced its winning teams at the ... York City . The teams, chosen ... MoMA,s Celeste Bartos Theater during the daylong summit. Keynote ... of architecture and design, and Suzanne Lee , ...
(Date:6/23/2016)... ... ... In a new case report published today in STEM CELLS Translational Medicine, ... after being treated for breast cancer benefitted from an injection of stem cells derived ... debilitating, frequent side effect of cancer treatment. , Lymphedema refers to the ...
(Date:6/23/2016)... June 23, 2016 On Wednesday, June ... 4,833.32, down 0.22%; the Dow Jones Industrial Average edged 0.27% ... at 2,085.45, down 0.17%. Stock-Callers.com has initiated coverage on the ... Nektar Therapeutics (NASDAQ: NKTR ), Aralez Pharmaceuticals Inc. ... BIND ). Learn more about these stocks by ...
Breaking Biology Technology:
Cached News: