TCRdb

TCRdb provides a curated database of human T-cell receptor (TCR) sequences and associated metadata to support analysis of T-cell repertoire composition and variation across tissues, clinical conditions, and cell types.

Key Features:

• Scale and scope: Contains over 277 million TCR sequences derived from more than 8,265 TCR-Seq samples spanning diverse tissues, clinical conditions, and cell types.
• Data quality: Sequences are produced through a strict, uniform pipeline to ensure high reliability and consistency across samples.
• Search functionality: Enables identification and retrieval of specific TCR sequences for comparative and repertoire analyses.
• Categorized sample metadata: Provides detailed, type-categorized metadata for each sample to support comparative analyses across sample classes.
• Repertoire analytics: Provides analyses and visualizations of repertoire properties including diversity, CDR3 length distribution, and V–J gene utilization.

Scientific Applications:

• Immune response analysis: Enables characterization of T-cell repertoire changes associated with infection, vaccination, or other immune perturbations.
• Vaccine research: Supports identification of vaccine-associated TCR signatures and monitoring of vaccine-induced repertoire shifts.
• Cancer immunotherapy: Facilitates analysis of tumor- or therapy-associated TCR clonotypes and repertoire diversity in cancer studies.
• Autoimmune disease research: Allows comparison of TCR repertoires in autoimmune conditions to identify disease-associated TCR features.
• Personalized medicine: Provides data for discovery of patient-specific or condition-specific TCR signatures relevant to targeted therapies.

Methodology:

Construction used a uniform pipeline to characterize TCR sequences from TCR-Seq data, standardizing sequences for reliability and comparability.