Thera-SAbDab

Thera-SAbDab catalogs antibody- and nanobody-related therapeutics recognized by the World Health Organization (WHO) and links their variable domain sequences to structural data in SAbDab and the Protein Data Bank to support structural and therapeutic analysis.

Key Features:

• Integration with SAbDab and PDB: Reflects updates from new Protein Data Bank entries and sequence data published by WHO, linking therapeutic entries to SAbDab structural records.
• Weekly Updates: Synchronizes on a weekly basis to incorporate newly released structural and sequence data.
• Comprehensive Therapeutic Summaries: Provides structural coverage links to SAbDab entries, sequence alignments that highlight deviations in near-matches, and metadata such as intended targets and investigated conditions.
• Advanced Query Capabilities: Supports queries by therapeutic name, combinations of metadata, or variable domain sequences and returns therapeutics that meet specified sequence identity criteria over designated regions.
• Data Accessibility: Contains 461 unique molecules as of August 5, 2019, with sequences and associated metadata available for download in a single file format.

Scientific Applications:

• Structural analysis of therapeutics: Enables comparison of therapeutic variable domain sequences with available structures to assess structural coverage and variation.
• Therapeutic development: Supports development efforts by providing sequence-to-structure mappings and target metadata for existing antibody- and nanobody-based therapeutics.
• Cross-reactivity and off-target assessment: Facilitates identification of potential off-target effects or cross-reactivity through sequence comparison and alignment.
• Immunology and structural biology research: Serves as a resource for researchers analyzing structural determinants of therapeutic antibodies and nanobodies.

Methodology:

Identifies corresponding structures by performing near-exact and exact variable domain sequence matches against SAbDab entries and presents sequence alignments to show deviations in near-matches.