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


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.


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 ...


'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 ...


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.


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 ...


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.


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 ...


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 ...


How to get obese mice moving -- and cure their diabetes

How to get obese mice moving -- and cure their diabetes

Biology / Cell & Microbiology

created Jun 02, 2009 | popularity 5 / 5 (1) | comments 0

Mice lacking the fat hormone leptin or the ability to respond to it become morbidly obese and severely diabetic—not to mention downright sluggish. Now, a new study in the June Cell Metabolism shows that b ...


Study reveals current multi-component vaccines may need reworking

Medicine & Health / Research

created May 07, 2009 | popularity 1 / 5 (1) | comments 0

Current strategies for designing vaccines against HIV and cancers, for instance, may enable some components in multi-component vaccines to cancel the effect of others on the immune system, eliminating their ability to provide ...


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.


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 ...


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 ...