Phase 50 · Protein & Peptide Tools

Antibody Variant Family & Mutation Comparison

Compare multiple related antibody variable-domain protein sequences against one explicit reference. Review identity, shared substitutions, IMGT-region context when available, a reference-coordinate consensus and pairwise sequence similarity.

Reference label

Reference VH / VL / VHH protein sequence

Variant sequences — FASTA, at least 2

Use local ANARCII/IMGT numbering for the reference when available

Ready.

Comparison result

Variant	Length	Identity to reference	Reference coverage	Substitutions	Insertions	Deletions

Shared substitutions

Mutation	Count	Variants

Mutation events

Variant	Type	Reference pos.	IMGT	Region	Change

Reference-coordinate consensus

Pairwise protein identity

Germline & Mutation Mapper Germline References