Peptide
hidePeptides (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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News tagged with peptides
When It Comes to Drug Delivery, Size Matters
Nanotechnology / Bio & Medicine
Nov 20, 2009 |
5 / 5 (2) |
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(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 ...
Nano bubble gum for enhancing drug delivery in gut
Nov 09, 2009 |
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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 ...
Inhibition of GRK2 is protective against acute cardiac stress injuries
Nov 17, 2009 |
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Inhibition of a protein known to contribute to heart failure also appears to be protective of the heart in more acute cardiac stress injury, namely ischemia reperfusion, according to two studies conducted at the Center for ...
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Study describes new tool in the fight against autoimmune diseases, blood cancers
Nov 30, 2009 |
4 / 5 (1) |
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A study led by a Scripps Research Institute scientist describes a new, highly pragmatic approach to the identification of molecules that prevent a specific type of immune cells from attacking their host. The findings add ...
First live targeting of tumors with RNA-based technology
Nov 30, 2009 |
4 / 5 (1) |
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(PhysOrg.com) -- Finding and treating a tumor without disturbing normal tissue presents challenges - sometimes the most effective therapies can be invasive and harsh.
Spider secrets decoded in world-first database
Nov 23, 2009 |
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(PhysOrg.com) -- Queensland scientists have developed a world-first database that catalogues the venom components from hundreds of spiders.
Peptides control crystal growth with 'switches, throttles and brakes'
Nanotechnology / Bio & Medicine
Nov 23, 2009 |
4.8 / 5 (5) |
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(PhysOrg.com) -- By producing some of the highest resolution images of peptides attaching to mineral surfaces, scientists have a deeper understanding how biomolecules manipulate the growth crystals. This research ...
PLoS Genetics 2009 maize genome collection
Nov 19, 2009 |
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Maize is an important crop in many countries of the world. It is widely used for human consumption, animal feed, and industrial materials. It also is considered an exemplar plant species for studying domestication, molecular ...
An atomic-level look at an HIV accomplice
Nov 19, 2009 |
1 / 5 (1) |
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(PhysOrg.com) -- Since the discovery in 2007 that a component of human semen called SEVI boosts infectivity of the virus that causes AIDS, researchers have been trying to learn more about SEVI and how it works, in hopes of ...
Researchers 'notch' a victory toward new kind of cancer drug
Nov 11, 2009 |
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(PhysOrg.com) -- Scientists have devised an innovative way to disarm a key protein considered to be "undruggable," meaning that all previous efforts to develop a drug against it have failed. Their discovery, published in ...
Hybrid molecules show promise for exploring, treating Alzheimer's
Nov 04, 2009 |
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One of the many mysteries of Alzheimer's disease is how protein-like snippets called amyloid-beta peptides, which clump together to form plaques in the brain, may cause cell death, leading to the disease's devastating symptoms ...
NIST quantifies low levels of 'heart attack risk' protein
Chemistry / Analytical Chemistry
Nov 04, 2009 |
5 / 5 (1) |
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Searching for a needle in a haystack may seem futile, but it's worth it if the needle is a hard-to-detect protein that may identify a person at high risk of a heart attack circulating within a haystack of ...
Scientists create fruit fly model to help unravel genetics of human diabetes
Nov 02, 2009 |
3 / 5 (1) |
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As rates of obesity, diabetes, and related disorders have reached epidemic proportions in the US in recent years, scientists are working from many angles to pinpoint the causes and contributing factors involved ...
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