Peptide

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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

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Nano bubble gum for enhancing drug delivery in gut

Biology / Biotechnology

created Nov 09, 2009 | popularity not rated yet | comments 0

Of the many characteristic traits a drug can have, one of the most desirable is the ability for a drug to be swallowed and absorbed into the bloodstream through the gut. Some drugs, like over-the-counter aspirin, lend themselves ...


'Spaghetti' scaffolding could help grow skin in labs

Chemistry / Biochemistry

created Oct 16, 2009 | popularity 4 / 5 (2) | comments 0

Scientists are developing new scaffolding technology which could be used to grow tissues such as skin, nerves and cartilage using 3D spaghetti-like structures. Their research is highlighted in the latest issue of Business, the qu ...


Powerhouses in the cell dismantled

Biology / Cell & Microbiology

created Oct 15, 2009 | popularity not rated yet | comments 0

All of life is founded on the interactions of millions of proteins. These are the building blocks for cells and form the molecular mechanisms of life. The problem is that proteins are extremely difficult to study, particularly ...


Fruit Fly (Drosophila melanogaster)

Fruit fly sperm makes females do housework after sex

Biology / Plants & Animals

created Sep 30, 2009 | popularity 5 / 5 (1) | comments 0

The sperm of male fruit flies are coated with a chemical 'sex peptide' which inhibits the female's usual afternoon siesta and compels her into an intense period of foraging activity.


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 ...


Scientists move closer to a safer anthrax vaccine

Scientists move closer to a safer anthrax vaccine

Chemistry / Biochemistry

created Sep 04, 2009 | popularity not rated yet | comments 0

Researchers at Albert Einstein College of Medicine of Yeshiva University have identified two small protein fragments that could be developed into an anthrax vaccine that may cause fewer side effects than ...


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 ...


Single-molecule technique captures calcium sensor calmodulin in action

Single-molecule technique captures calcium sensor calmodulin in action

Chemistry / Biochemistry

created Aug 10, 2009 | popularity not rated yet | comments 0

It's well known that the protein calmodulin specifically targets and steers the activities of hundreds of other proteins - mostly kinases - in our cells, thus playing a role in physiologically important processes ...


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 ...


Discovery may open door to drug that cuts appetite and boosts energy

Medicine & Health / Research

created Jul 20, 2009 | popularity not rated yet | comments 1

In a major advance in obesity and diabetes research, Yale School of Medicine scientists have found that reducing levels of a key enzyme in the brain decreased appetites and increased energy levels.


Researchers Suggest New Approach in Development Efforts for Parkinson’s Therapeutics

Researchers Suggest New Approach in Development Efforts for Parkinson’s Therapeutics

Chemistry / Biochemistry

created Jul 14, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- Researchers outline today a new approach in the potential development of drugs to counter a cellular defect that triggers Parkinson’s and other diseases.


New method may accelerate drug discovery for difficult diseases like Parkinson's

Chemistry / Biochemistry

created Jul 13, 2009 | popularity not rated yet | comments 0

Whitehead Institute scientists have developed a rapid, inexpensive drug-screening method that could be used to target diseases that until now have stymied drug developers, such as Parkinson's disease. This technique uses ...


Chemists say antibody surrogates are just a 'click' away

Chemistry / Biochemistry

created Jul 09, 2009 | popularity 5 / 5 (4) | 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 ...


Alzheimer's research pinpoints antibodies that may prevent disease

Medicine & Health / Research

created Jul 06, 2009 | popularity 4.5 / 5 (2) | comments 0

Antibodies to a wide range of substances that can aggregate to form plaques, such as those found in Alzheimer's patients, have been identified in the blood and cerebrospinal fluid of healthy people. Levels of these antibodies ...


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 ...




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