Visual Antibody3D Viewer
View structures in-site—no redirect. Enter a PDB ID or pick a structure below (antibody Fv or full structure). Rotate (drag), zoom (scroll), measure, export PNG/PDB, copy cite — all in the viewer bar and sidebar. Multi-frame demo
For antibodies: load an Fv or full antibody PDB (e.g. from RCSB) to view and export. Use CDR Highlighter to visualize CDR loops in 3D; use PDB Upload (Antibody) to load your own file. Export PDB or PNG from the viewer. For sequence analysis and CDR export see Sequence Analyzer and CDR Sequence Export; for format details see Export formats.
Ubiquitin, small globular protein; widely used for protein fold and domain reference.
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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.