Scientific glossary
THE VOCABULARY OF PEPTIDE SCIENCE.
Precise definitions, each with its own page and links to related concepts.
Amino acid
The molecular building block of peptides and proteins.
Bioavailability
The proportion of a substance that reaches systemic circulation in active form.
Bioregulation
The regulation of biological processes through endogenous signalling systems.
Clinical research
Structured investigation in human participants.
Half-life
The time required for a substance's concentration to fall by half.
Ligand
A molecule that binds to a receptor or other target site.
Peptide
A short chain of amino acids joined by peptide bonds.
Peptide synthesis
The controlled chemical assembly of a defined amino acid sequence.
Pharmacodynamics
The study of the biological effects a substance produces and how it produces them.
Pharmacokinetics
The study of how a substance is absorbed, distributed, metabolised and eliminated.
Preclinical research
Laboratory and animal research conducted before human studies.
Protein
A long amino acid chain that folds into a defined three-dimensional structure.
Receptor
A protein that recognises a specific molecule and converts that recognition into a cellular response.
Signal transduction
The relay of information from a receptor into the interior of a cell.
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