Visual Oligo3D Viewer
View structures in-site—no redirect. Enter a PDB ID or pick a structure below (DNA/RNA or oligonucleotide). Rotate (drag), zoom (scroll), measure, export PNG/PDB, copy cite — all in the viewer bar and sidebar. Double Helix Builder
For DNA/RNA: load an oligonucleotide or nucleic acid PDB to view and export. Use PDB Upload to upload your own file; use Double Helix Builder for multi-frame or helix preview. Export PDB or PNG from the viewer. For MW, Tm, and GC% see Oligo Properties and Salt Adjusted Tm; for export options see Export formats and Batch Analysis Export.
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 an example below to view in the viewer above.
Example structures
To load another structure, use the form above.
Data from RCSB PDB. For research and education. All viewing is in-site—no redirect. Resources · Tools · Export.