Interface Predictor

Predict the antibody–antigen complex structure and extract / residues.

Name (optional — used in job list instead of random ID)

Antibody — VHH / scFv (single block) or Fab (VH + VL, blank line between)

Antigen input

1Upload antigen structure

Upload antigen PDBRecommendedDrop an antigen structure or browse · .pdb / .ent · max 20 MiBBrowse

Selected antigen chains are retained as a forced structural template, preserving multimeric assembly while the antibody–antigen complex is predicted.

Complete antigen sequence(s)Optional

Use this when the structure has unresolved residues. The complete sequence is aligned to each selected PDB chain before submission; incompatible mappings are rejected rather than guessed.

Contact cutoff (Å)

Structure model

Backend

Runs Boltz-2 on internal GPU compute — typically ~3–8 min. Falls back to the hosted service if unavailable.

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