Visual Cyclic3D Viewer
View structures in-site—no redirect. Enter a PDB ID or pick a structure below (cyclic peptide or macrocycle). Rotate (drag), zoom (scroll), measure, export PNG/PDB, copy cite — all in the viewer bar and sidebar. Macrocycle Conformation
For cyclic peptides: load a cyclic peptide or macrocycle PDB to view and export. Use Disulfide Bond 3D to visualize disulfide connectivity; use Macrocycle Conformation for multi-frame or conformation preview. Export PDB or PNG from the viewer. For cyclization mass and properties see Cyclic Peptide Properties and Stability Predictor; for export see Cyclic Structure Export and Export formats.
Your workflow: structure → dose → detail → verify
Semaglutide bound to GLP-1 receptor in complex with Gs protein (cryo-EM); useful for understanding GLP-1R binding and dose/modification site reference.
Also useful: 6X18 (GLP-1 peptide–receptor) — Native GLP-1 bound to GLP-1R; compare with Semaglutide.
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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.
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Data from RCSB PDB. For research and education. All viewing is in-site—no redirect. Resources · Tools · Export.