Use of IMGT(®) databases and tools for antibody engineering and humanization

Area of Science:

• Immunoinformatics
• Structural Biology
• Genomics

Background:

• The International ImMunoGeneTics information system (IMGT) was established in 1989 to manage the diversity of antigen receptors like immunoglobulins (IG) and T cell receptors (TR).
• Bridging the gap between antibody sequences and their three-dimensional (3D) structures is crucial for understanding antibody function and development.

Purpose of the Study:

• To present the IMGT databases and tools for analyzing antibody amino acid sequences, 2D, and 3D structures.
• To highlight the IMGT Scientific chart rules and IMGT-ONTOLOGY concepts that standardize antibody analysis.
• To emphasize IMGT's role as an international reference for immunogenetics and immunoinformatics.

Main Methods:

• Utilizing IMGT databases such as IMGT/LIGM-DB and IMGT/GENE-DB for nucleotide sequences and genes.
• Employing IMGT tools like IMGT/V-QUEST, IMGT/HighV-QUEST, and IMGT/JunctionAnalysis for sequence analysis.
• Focusing on IMGT/DomainGapAlign, IMGT/Collier-de-Perles, IMGT/2Dstructure-DB, and IMGT/3Dstructure-DB for structural analysis.

Main Results:

• Standardized analysis enables the connection between antibody sequences and their 3D structures.
• IMGT provides standardized nomenclature, labels, and numbering for antibody genes and structures.
• Databases like IMGT/2Dstructure-DB and IMGT/3Dstructure-DB offer access to curated antibody sequence and structural data.

Conclusions:

• IMGT serves as the international reference for immunogenetics and immunoinformatics.
• IMGT standards are vital for antibody humanization and assessing immunogenicity.
• The system facilitates comprehensive analysis from nucleotide sequences to 3D antibody structures.