Peptide

hide

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.


News tagged with peptides

results timeline


Scientists overcome nanotech hurdle

Nanotechnology / Bio & Medicine

created Aug 13, 2008 | popularity 4.3 / 5 (18) | comments 7

When you make a new material on a nanoscale how can you see what you have made? A team lead by a Biotechnology and Biological Sciences research Council (BBSRC) fellow has made a significant step toward overcoming this major ...


Discovery of natural compounds that could slow blood vessel growth

Biology /

created Oct 04, 2008 | popularity 4.6 / 5 (14) | comments 0

Using computer models and live cell experiments, biomedical engineers at the Johns Hopkins University School of Medicine have discovered more than 100 human protein fragments that can slow or stop the growth of cells that ...


Reexamination of T. rex verifies disputed biochemical remains

Reexamination of T. rex verifies disputed biochemical remains

Chemistry / Materials Science

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

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 ...


NIST Membrane Model May Unlock Secrets of Early-Stage Alzheimer's

New Membrane Model May Unlock Secrets of Early-Stage Alzheimer's

Physics / General Physics

created Jul 23, 2008 | popularity 3.7 / 5 (7) | comments 0

Researchers at the National Institute of Standards and Technology and three collaborating institutions are using a new laboratory model of the membrane surrounding neurons in the brain to study how a protein ...


Alzheimer’s Findings Resolve Dispute Over How Disease Kills Brain Cells

Medicine & Health / Neuroscience

created Apr 15, 2009 | popularity 4.2 / 5 (6) | comments 0

(PhysOrg.com) -- For a decade, Alzheimer's disease researchers have been entrenched in debate about one of the mechanisms believed to be responsible for brain cell death and memory loss in the illness.


Chemists say antibody surrogates are just a 'click' away

Chemistry / Biochemistry

created Jul 09, 2009 | popularity 5 / 5 (5) | comments 1

Chemists at the California Institute of Technology and the Scripps Research Institute have developed an innovative technique to create cheap but highly stable chemicals that have the potential to take the place of the antibodies ...


Gooda, Gouda! Solving the 800-year-old secret of a big cheese

Chemistry / Other

created Mar 04, 2009 | popularity 4.2 / 5 (5) | comments 0

Almost 800 years after farmers in the village of Gouda in Holland first brought a creamy new cheese to market, scientists in Germany say they have cracked the secret of Gouda’s good taste. They have identified the key protein ...


Antibody Replacements Just a 'Click' Away

Nanotechnology / Bio & Medicine

created Aug 28, 2009 | popularity 5 / 5 (4) | comments 2

Chemists at the California Institute of Technology (Caltech) and The Scripps Research Institute (SRI) have developed an innovative technique to create cheap but highly stable chemicals that have the potential to take the ...


Dr. Michael Gozin, Tel Aviv University

Evil-doers everywhere: Get a whiff of this

Chemistry /

created Feb 18, 2009 | popularity 3.5 / 5 (4) | comments 0

The food you eat, the drugs you take, your state of mind, and your gender -- all these make your sweat unique. Tel Aviv University chemists may turn this fact into a new crime-fighting tool that would make ...


Scientists develop method for comprehensive proteome analysis

Biology / Cell & Microbiology

created Apr 08, 2009 | popularity 5 / 5 (2) | comments 0

Investigators at Burnham Institute for Medical Research (Burnham) have deciphered a large percentage of the total protein complement (proteome) in Schizosaccharomyces pombe (S. pombe) fission yeast.


Singapore nanotechnology combats fatal brain infections

Nanotechnology / Bio & Medicine

created Jun 28, 2009 | popularity 5 / 5 (2) | comments 1

Doctors may get a new arsenal for meningitis treatment and the war on drug-resistant bacteria and fungal infections with novel peptide nanoparticles developed by scientists at the Institute of Bioengineering and Nanotechnology ...


Blocking signal molecule can prevent growth of large intestine and colon cancer

Medicine & Health / Cancer

created Sep 23, 2009 | popularity 5 / 5 (2) | comments 0

By seeing what substances and molecules affect the development of our diseases, we can develop drugs that prevent or cure diseases. In her dissertation at Kalmar University in Sweden, Ann Novotny has found that the signal ...


When It Comes to Drug Delivery, Size Matters

Nanotechnology / Bio & Medicine

created Nov 20, 2009 | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- One of the great promises of nanotechnologies lies in its ability to create drug-containing nanoparticles decorated with targeting molecules that recognize and bind to cancer cells, providing drug delivery ...


Two-phase microbial resistance: the example of insects

Two-phase microbial resistance: the example of insects

Biology /

created Nov 26, 2008 | popularity 4.5 / 5 (2) | comments 0

(PhysOrg.com) -- In less than an hour, the immune system of the beetle Tenebrio molitor neutralizes most of the bacteria infecting its hemolymph (the equivalent to blood in vertebrates); this is rendered possible ...


bullfrog

The secret life of frogs

Biology / Plants & Animals

created Mar 24, 2009 | popularity 4.5 / 5 (2) | comments 1

(PhysOrg.com) -- University of Notre Dame biologist Sunny Boyd's research is a little like "Match.com" for amphibians. Say you're a female tree frog looking for a mate--how do you choose among a number of ...