Add one or more PDB IDs of the same protein to compare.
Measurement Mode
Point / Group A
Atom–Atom mode: enter chain, residue #, and exact atom name.
Point / Group B
Atom–Atom mode: enter chain, residue #, and exact atom name.
Results
No comparison yet.
History
3D Structure — click a result row to load & focus that structure
Comparison Chart
Legend
Group A (selected/highlighted)
Group B (selected/highlighted)
N/A — selection not found in that structure
How comparison works: each loaded structure's atom coordinates are cached the moment it's added, so distances for every structure are computed instantly and simultaneously. The 3D canvas can only display one structure at a time — clicking a result row reloads that specific structure into the viewer and focuses/highlights the measured groups.
Group A/B are defined once and applied to every loaded structure — this assumes consistent chain IDs and residue numbering across entries (typical for multiple depositions of the same protein). Structures where the selection can't be resolved are marked N/A rather than skipped silently.