Cell-signaling proteins are also known as cytokines. Endothelial cells - cells that form the inner lining of blood vessels. Monotherapy - treatment with a single agent. Peptide - a molecule composed of a chain of two or more amino acids. There are 20 naturally-occurring amino acids.
Peptides are among the most common chemical structures found in animals.
Protein - a large peptide consisting of a long sequence of amino acids. Proteins are the common material of tendons, muscles, enzymes, etc. Inc. All rights reserved.