1Load structuresfrom ISDA (BinaryCIF)
2Superimposeoptional · visual overlay
Aligns every loaded structure onto the reference (Cα-based, Needleman-Wunsch correspondence + Kabsch fit). Purely visual — the distance numbers are computed independently and are unaffected by this.
3Measure distancesapplied to every loaded structure
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.
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.
4Resultsclick a row to view that structure in 3D
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 it works: each loaded structure's atom coordinates are cached when it is added, so distances for every structure are computed instantly and together. In the single-structure view the canvas shows one structure at a time — clicking a result row loads that structure and focuses the measured groups. Superimpose shows all structures together, each in its own colour.