Peptide Molecular Icons — Science-Based Visual Fingerprints for 150 Peptides

150 peptide molecular icons built from real amino acid sequences. Each icon is a visual fingerprint encoding residue count, chemical class, and relative mass into a compact SVG. Coverage 102 icons from verified amino acid sequences (sourced from PubMed and UniProt) 27 simplified icons (non-standard residues mapped to the closest standard match) 21 compound icons for non-peptide molecules (MK-677, NAD+, L-Carnitine, etc.) Visual Encoding Each bubble = one amino acid residue in the primary sequence Bubble size = relative residue mass (Tryptophan = largest, Glycine = smallest) Bubble color = biochemical class (hydrophobic, polar, positive charge, negative charge, special) Bubble count = total residue count in the peptide chain Ring layout = cyclic peptide structure (e.g., Melanotan II, Oxytocin) Limitations Icons do not show stereochemistry — D-amino acids and L-amino acids appear identical Post-translational modifications (PEGylation, fatty acid chains, acetylation) are not represented No 3D folding, receptor binding, or surface geometry — these are flat 2D sequence maps Icons make no claims about biological activity, potency, or safety Simplified icons approximate non-standard residues (e.g., norleucine mapped to leucine) Dataset Contents icons/dark/ — 150 dark-background SVGs icons/light/ — 150 light-background SVGs icons.json — manifest with sequence, molecular weight, category, and audit status for all 150 entries LICENSE — CC BY-NC 4.0 ATTRIBUTION.txt — credit line Part of Peptide Schedule This dataset is part of Peptide Schedule — the most extensive curated peptide resource online. Peptide Calculator — free dosing, reconstitution, and syringe unit math for 150+ peptides Browse All Peptides — profiles, dosing guides, mechanisms, and side effects Browse and Download Icons — interactive gallery with individual SVG downloads GitHub Repository npm Package