Manufacturing limitations have resulted in a historical rule of thumb: peptides are short chains consisting of 50 or less amino acids. For the sake of this article, however, I define a peptide as ...
membrane and initiates the transport of the growing peptide chain across it 2,3. In prokaryotes, the signal peptide directs the pre-protein to the cytoplasmic membrane. However, the signal peptide ...
Central in many of these investigations is the analysis of biologically active peptides--chains of amino acids ranging from as few as two to more than 50 acids. Since these peptides can't be derived ...
Amino acids are the building blocks of proteins, but they're also the building blocks of peptides. "Collagen itself is made of polypeptides chains," says Dr. Downie. Collagen is a large molecule ...