PDB ID
Protein Data Bank identifier — a four-character code for a specific 3D protein structure.
The Protein Data Bank (PDB) is the central global archive of experimentally-determined 3D structures of proteins, peptides, nucleic acids, and complex assemblies. Each entry has a unique 4-character alphanumeric code (e.g. 7T7B for the GLP-1 receptor with semaglutide bound). PDB IDs are the canonical reference when citing a specific structural study and feed into structural-biology research, computational drug design, and AI-protein-folding training (AlphaFold uses PDB structures as training data). When a research paper claims to characterise a peptide-receptor binding mode, the PDB ID is the primary reference.
- GlossaryCOA (Certificate of Analysis)
Document showing the analytical results — typically purity, mass, and identity — for a specific batch of research peptide.
- GlossaryHPLC
High-performance liquid chromatography — the standard purity assay for research peptides.
- GlossaryMass spectrometry
Identifies a compound by measuring its mass-to-charge ratio.