In addition to antibodies and white blood cells, the immune system deploys peptides to fight viruses and other pathogens. Synthetic peptides could reinforce this defense but don't last long in the body, so researchers are ...
Biochemistry
Aug 24, 2021
0
3004
The synthetic biologists from Imperial College London have re-engineered yeast cells to manufacture the nonribosomal peptide antibiotic penicillin. In laboratory experiments, they were able to demonstrate that this yeast ...
Biotechnology
May 4, 2017
0
947
For decades, a substantial number of proteins, vital for treating various diseases, have remained elusive to oral drug therapy. Traditional small molecules often struggle to bind to proteins with flat surfaces or require ...
Biochemistry
Dec 28, 2023
0
203
Could a spritz of super-tiny particles of gold and peptides on a damaged heart potentially provide minimally invasive, on-the-spot repair?
Bio & Medicine
Mar 15, 2022
0
292
Researchers at the University of Southern California have identified two molecules that may be more effective cancer killers than are currently available on the market.
Cell & Microbiology
Nov 6, 2011
2
0
According to a new concept by LMU chemists led by Thomas Carell, it was a novel molecular species composed out of RNA and peptides that set in motion the evolution of life into more complex forms.
Evolution
May 12, 2022
2
1050
How did life arise on Earth? Rutgers researchers have found among the first and perhaps only hard evidence that simple protein catalysts—essential for cells, the building blocks of life, to function—may have existed when ...
Biochemistry
Aug 30, 2018
7
1495
Utilizing the most rigorous testing methods to date, researchers from North Carolina State University have isolated additional collagen peptides from an 80-million-year-old Brachylophosaurus. The work lends further support ...
Archaeology
Jan 23, 2017
0
2209
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 Sherlock Holmes ...
Feb 18, 2009
0
0
(Phys.org) —While the natural world is replete with compounds that form the basis of many disease-fighting pharmaceuticals, it is also the case that humans and other mammals produce their own host-defense peptide-derived ...
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.
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