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AbNumber

Number antibody variable domains.

Results

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Inputs

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Method & evidence

Number antibody sequences and label framework and CDR regions.

Scope & limitations

  • Automatic chain classification should be reviewed when sequence context is incomplete.

Interpreting results

  • Compare results only when the numbering and CDR schemes are stated explicitly.
  • Review rejected or ambiguous rows before continuing.

References

Input requirements & outputs

Input checks

  • Unambiguous protein sequence in the selected column
  • One frozen Selection or Dataset Version
  • Up to 1,000 rows and 500 residues per row

Expected results

  • Numbered residues — Review canonical antibody positions alongside the source residues.
  • Framework and CDR labels — Separate framework and complementarity-determining regions.
  • Row-level quality summary — Review the numbering scheme, processing status, and any sequence validation issues.
API & integrations
Ubi Biologics