Visual Peptide3D Viewer
View structures in-site—no redirect. Enter a PDB ID or pick a structure below (peptides and proteins). Rotate (drag), zoom (scroll), measure, export PNG/PDB, copy cite — all in the viewer bar and sidebar. Multi-frame demo
For peptides: load a peptide or protein PDB (e.g. from RCSB) or generate a Cα chain from sequence in the viewer. Use PDB Upload to load your own file; use Disulfide Bond Viewer to visualize disulfide bonds. For molecular weight and dose planning see Peptide Properties and Recon & Dosing Calculator; for export options see Export formats and Batch Analysis Export.
Crambin, small protein; useful for small-molecule and crystallography reference.
Copy this structure’s URL to share:
How to use the 3D viewer
- Rotate & zoom: Drag to rotate the structure; scroll to zoom in/out.
- Chains: Use the checkboxes in the viewer bar to show or hide each chain.
- Display mode: Switch between cartoon, stick, line, or sphere in the viewer bar.
- Seq ↔ 3D: In the right sidebar, open the panel to see residue numbers by chain; click a number to center the view. Hover in 3D to highlight the same residue in the panel.
- Hover: Move the mouse over the structure to see residue info in the bottom-left overlay; the hovered residue is highlighted in red.
- Measure: Turn on Measure in the bar, then click two atoms to see the distance (Å) and a red line.
- Share: Use Copy link above to copy this structure’s URL. Export PNG, Download PDB, and Copy Cite are in the right-hand sidebar.
Load or pick a structure
Enter a PDB ID or pick a peptide below to view its 3D structure in the viewer above.
Peptides with 3D structure
Related structures (receptors, proteins)
To load another structure, use the form above.
Data from RCSB PDB. For research and education. All viewing is in-site—no redirect. Peptide Library · Tools · Export · Purity & Verify. Not all peptides have a public 3D structure; small peptides may be under different IDs or in other databases.