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News tagged with peptides

Surprising discovery: X-rays drive formation of new crystals

detect broken bones, tumors and dental cavities, analyze atoms in diverse materials and screen luggage at airports -- but who knew they could cause crystals to form?

Physics / Condensed Matter

created Jan 25, 2010 | popularity 4.7 / 5 (18) | comments 4 | with audio podcast

Peptides may hold 'missing link' to life

Emory University scientists have discovered that simple peptides can organize into bi-layer membranes. The finding suggests a "missing link" between the pre-biotic Earth's chemical inventory and the organizational ...

Chemistry / Biochemistry

created May 06, 2010 | popularity 4.9 / 5 (15) | comments 2 | with audio podcast

Unlocking the mystery of the duck-billed platypus' venom

Abandon any notion that the duck-billed platypus is a soft and cuddly creature -- maybe like Perry the Platypus in the Phineas and Ferb cartoon.

Chemistry / Analytical Chemistry

created Jan 13, 2010 | popularity 4.6 / 5 (14) | comments 3 | with audio podcast

Researchers find key interaction that controls telomeres

In the dominoes that make up human cells, researchers at the University of Michigan Comprehensive Cancer Center have traced another step of the process that stops cells from becoming cancerous.

Biology / Cell & Microbiology

created Feb 17, 2010 | popularity 5 / 5 (12) | comments 1 | with audio podcast

New method of peptide synthesis makes it easier to create drugs based on natural compounds

A team of Vanderbilt chemists has developed a novel method for chemically synthesizing peptides that promises to lower the cost and increase the availability of drugs based on natural compounds.

Chemistry / Biochemistry

created Jun 23, 2010 | popularity 4.9 / 5 (8) | comments 1 | with audio podcast

Peptides Can Repair Damaged Heart Tissue

(PhysOrg.com) -- A startup company, CardioHeal, based in Brookline, MA has developed peptide drugs that can speed up the growth of new heart muscle cells.

Medicine & Health / Medical research

created Apr 16, 2010 | popularity 4.6 / 5 (8) | comments 0 | with audio podcast report

Self- and X-ray-Induced Crystallization of Supramolecular Filaments

(PhysOrg.com) -- Experiments can sometimes lead to the discovery of completely unanticipated phenomena. Such is the case with the remarkable behavior exhibited by peptide nanostructures (in the form of supramolecular ...

Nanotechnology / Nanomaterials

created Apr 08, 2010 | popularity 4.5 / 5 (8) | comments 2 | with audio podcast

Reexamination of T. rex verifies disputed biochemical remains

A new analysis of the remains of a Tyrannosaurus rex (T. rex) that roamed Earth 68 million years ago has confirmed traces of protein from blood and bone, tendons, or cartilage. The findings, scheduled for pu ...

Chemistry / Materials Science

created Jul 29, 2009 | popularity 5 / 5 (7) | comments 0

Scientists reengineer antibiotic to overcome dangerous antibiotic-resistant bacteria

A team of scientists from The Scripps Research Institute have successfully reengineered an important antibiotic to kill the deadliest antibiotic-resistant bacteria. The compound could one day be used clinically to treat patients ...

Chemistry / Biochemistry

created Aug 24, 2011 | popularity 5 / 5 (7) | comments 1 | with audio podcast

Multiple health concerns surface as winter, vitamin D deficiences arrive

A string of recent discoveries about the multiple health benefits of vitamin D has renewed interest in this multi-purpose nutrient, increased awareness of the huge numbers of people who are deficient in it, spurred research ...

Medicine & Health / Health

created Nov 23, 2009 | popularity 4.1 / 5 (8) | comments 3

The future of personalized cancer treatment: An entirely new direction for RNAi delivery

In technology that promises to one day allow drug delivery to be tailored to an individual patient and a particular cancer tumor, researchers at the University of California, San Diego School of Medicine, ...

Biology / Biotechnology

created May 17, 2009 | popularity 5 / 5 (6) | comments 1

Fluorescent peptides help nerves glow in surgery

Accidental damage to thin or buried nerves during surgery can have severe consequences, from chronic pain to permanent paralysis. Scientists at the University of California, San Diego School of Medicine may have found a remedy: ...

Biology / Biotechnology

created Feb 06, 2011 | popularity 5 / 5 (6) | comments 0 | with audio podcast

Scientists combine tumor-targeting peptides and nanoparticles to destroy glioblastoma

Glioblastoma is one of the most aggressive forms of brain cancer. Rather than presenting as a well-defined tumor, glioblastoma will often infiltrate the surrounding brain tissue, making it extremely difficult to treat surgically ...

Nanotechnology / Bio & Medicine

created Oct 03, 2011 | popularity 5 / 5 (6) | comments 4 | with audio podcast

Catching calcium waves could provide Alzheimer's insights (w/ Video)

New insights on what causes Alzheimer's disease could arise from a recent discovery made by bioengineers from the University of California, San Diego. The finding concerns the infamous amyloid beta peptides ...

Medicine & Health / Medical research

created Feb 12, 2010 | popularity 4.8 / 5 (6) | comments 0 | with audio podcast

'Magic number' 695 opens up new areas for Alzheimer's research

Alzheimer's disease is widely believed to be caused by the gradual accumulation in the brain of amyloid-beta peptide which is toxic to nerve cells. Amyloid beta peptide is formed from a protein known as APP, which is found ...

Chemistry / Biochemistry

created Nov 15, 2010 | popularity 4.8 / 5 (6) | comments 0 | with audio podcast

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.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.