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News tagged with peptides

A post-coital switch: Mapping the changing behaviors in the female fruit fly's mind

If men are from Mars and women are from Venus, then it shouldn't be surprising that their neural circuits differ. In research published today in the journal Current Biology, researchers have used dramatic change ...

Biology / Plants & Animals

created May 31, 2012 | popularity not rated yet | comments 0 | with audio podcast

50-year cholera mystery solved: Answers may help clear the way for a new class of antibiotics

For 50 years scientists have been unsure how the bacteria that gives humans cholera manages to resist one of our basic innate immune responses. That mystery has now been solved, thanks to research from biologists at The University ...

Biology / Cell & Microbiology

created May 29, 2012 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Bicyclic peptides with optimized ring size inhibit human plasma kallikrein and its orthologs while sparing paralogous pr

(Phys.org) -- New drug candidates require testing in animal models prior to approval for clinical use. A recently developed antagonist based on a bicyclic peptide inhibited the human serine protease plasma ...

Chemistry / Biochemistry

created Apr 13, 2012 | popularity not rated yet | comments 0

Scientists use frogs to battle superbugs

(PhysOrg.com) -- Nuclear scientists using frogs in a battle against superbugs might sound like some kind of 1980s computer game – but it’s actually scientific research underway right now.

Biology / Cell & Microbiology

created Mar 19, 2012 | popularity not rated yet | comments 0

Greater accuracy in gauging blood coagulation

Thrombin plays a key role in various pathologies of the haemostatic system. Overexpression of thrombin can result in thrombosis, whereas its underexpression might lead to haemophilia. Therefore, accurate monitoring ...

Chemistry / Biochemistry

created Feb 23, 2012 | popularity 5 / 5 (1) | comments 0

Studying the evolution of life's building blocks

Studying the origin of life at its building blocks offers a unique perspective on evolution, says a researcher at Michigan State University.

Biology / Evolution

created Feb 19, 2012 | popularity 3 / 5 (1) | comments 0

Immunoproteasome crystal structure determined

Like a shredder, the immunoproteasome cuts down proteins into peptides that are subsequently presented on the cellular surface. The immune system can distinguish between self and nonself peptides and selectively ...

Chemistry / Biochemistry

created Feb 16, 2012 | popularity not rated yet | comments 0

Active compounds against Alzheimer's disease

More than half of all cases of dementia in the elderly can be attributed to Alzheimer's disease. Despite vast research efforts, an effective therapy has not been developed, and treatment consists of dealing with the symptoms. ...

Chemistry / Biochemistry

created Jan 12, 2012 | popularity 4 / 5 (1) | comments 0

Scientists create a functional model of the extracellular matrix

Scientists at the National Physical Laboratory (NPL) have created a functional model of the native extracellular matrix that provides structural support to cells to aid growth and proliferation. The model could lead to advances ...

Chemistry / Materials Science

created Dec 20, 2011 | popularity 5 / 5 (2) | comments 0

Cellular processing of proteins found in Congolese child birthing tea now revealed

Many plants produce compounds that serve as a defense against predators or pathogens. Some are also used by humans for a variety of beneficial purposes, such as in medicines. As recently as the early 1990s, a unique class ...

Biology / Cell & Microbiology

created Dec 12, 2011 | popularity not rated yet | comments 0

The extracellular matrix

NPL scientists have created a functional model of the native extracellular matrix which provides structural support to cells to aid growth and proliferation and could lead to advances in regenerative medicine.

Chemistry / Biochemistry

created Dec 12, 2011 | popularity 4 / 5 (1) | comments 0

Stinky frogs are a treasure trove of antibiotic substances

Some of the nastiest smelling creatures on Earth have skin that produces the greatest known variety of anti-bacterial substances that hold promise for becoming new weapons in the battle against antibiotic-resistant ...

Biology / Plants & Animals

created Nov 30, 2011 | popularity 5 / 5 (3) | comments 0

Going to the dogs: University's newest patent for improving canine health

Make no bones about it, a discovery by a Kansas State University research team could mean a longer and healthier life for man's best friend.

Biology / Plants & Animals

created Nov 29, 2011 | popularity not rated yet | comments 0

Bacteria responsible for common infections may protect themselves by stealing immune molecules

Bacteria responsible for middle ear infections, pink eye and sinusitis protect themselves from further immune attack by transporting molecules meant to destroy them away from their inner membrane target, according to a study ...

Biology / Cell & Microbiology

created Nov 17, 2011 | popularity not rated yet | comments 0 | with audio podcast

New technique enables study of 'challenging' proteins

Researchers from Hull, Bristol and Frankfurt have shown that a new technique for identifying molecular structure can be used effectively on small samples of biological proteins, particularly proteins that are targeted for ...

Chemistry / Biochemistry

created Nov 14, 2011 | popularity 5 / 5 (1) | comments 0

Peptide

Peptides (from the Greek πεπτίδια, "small digestibles") are short polymers formed from the linking, in a defined order, of α-amino acids. The link between one amino acid residue and the next is known as an amide bond or a peptide bond.

Proteins are polypeptide molecules (or consist of multiple polypeptide subunits). The distinction is that peptides are short and polypeptides/proteins are long. There are several different conventions to determine these, all of which have caveats and nuances.

For more information about Peptide, read the full article at Wikipedia.
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