Phase 44 · Protein & Peptide Tools

Antibody Sequence & Developability Analyzer

Inspect heavy/VHH and light-chain protein sequences for antibody-specific sequence liabilities and optional IMGT numbering when ANARCI is installed. CDR boundaries are never guessed when numbering is unavailable.

Antibody classes & subclasses
Species-aware reference context. Isotype is not inferred from a variable-domain sequence.
Select species and class/subclass.
Species / strain context
User-supplied metadata; strain is not inferred from antibody sequence.
Select species and optionally record the strain/source line.
Species / isotype reference heavy constant sequence
Automatically retrieved from UniProtKB. This does not replace the variable Heavy/VHH or Light-chain sequences.
Select a supported species and class/subclass.
Kappa uses IGKC. Lambda uses one of the species-specific IGLC genes.
Select Human or Mouse and a light-chain constant type.
Ready.