What sample types do you accept for BCR repertoire analysis?

We accept a wide array of input materials, including fresh or frozen whole blood, bone marrow aspirates, isolated B cells, PBMCs, and tissue samples (fresh, frozen, or formalin-fixed, paraffin-embedded). Our team can provide specific guidance on sample collection and preservation to ensure optimal data quality.

Why is RNA used as the starting material instead of genomic DNA (gDNA)?

We preferentially use RNA because it selectively captures the sequences of actively expressed BCRs. This approach provides a direct measure of the functional B-cell repertoire, avoiding the noise from non-productive rearrangements, pseudogenes, and resting B cells that can be present in gDNA-based analyses.

What is included in the final bioinformatics report?

Our comprehensive report includes raw sequencing data, quality control metrics, and an in-depth analysis of the repertoire. Key deliverables include clonotype identification and quantification, V(D)J gene usage frequencies, CDR3 length distribution analysis, somatic hypermutation rates, isotype distribution, and visualizations of repertoire diversity and clonal overlap between samples.

BCR Repertoire Analysis Services

Introduction Platform Services Application Advantages FAQs

Introduction to BCR Repertoire Analysis

The adaptive immune system's capacity to recognize and neutralize a virtually limitless array of antigens is fundamentally reliant upon the immense diversity of its B-cell receptor (BCR) repertoire. Each B cell expresses a unique BCR, serving as a primary sensor for antigen recognition.

Key Features of BCR Diversity

Generated through V(D)J recombination and junctional diversification.
Further shaped by somatic hypermutation (SHM) and class-switch recombination (CSR) after antigen activation.
Represents a dynamic record of both past immune challenges and ongoing surveillance.

Why BCR Repertoire Matters?

Clonal expansions or contractions, altered isotype distributions, and SHM patterns indicate changes in immune homeostasis.
Linked to a wide spectrum of conditions:
- Infectious diseases
- Autoimmune disorders
- B-cell malignancies (e.g., lymphomas)
- Responses to vaccination or immunotherapy

Interrogating this complex landscape is critical for elucidating disease mechanisms, discovering novel therapeutic antibodies, and developing biomarkers for diagnosis, prognosis, and treatment monitoring. Creative Biolabs provides comprehensive BCR Repertoire Analysis Services, leveraging advanced sequencing and bioinformatics to transform immune complexity into actionable biological insights.

Unlock the Power of Your BCR Data. Request a Consultation Today.

Cutting-Edge Technology Platform: Precisely Capturing Every Immune Signal

At the core of our service is a technologically advanced high-throughput sequencing platform, meticulously engineered to overcome the intrinsic challenges of immune repertoire analysis, namely amplification bias and sequencing error. Our workflow commences with RNA isolated from B cells or whole blood, a strategic choice that focuses on functionally expressed, transcribed BCRs, thereby excluding non-productive rearrangements and providing a more accurate representation of the active immune response. We offer our clients two analytical approaches: 5′ RACE library preparation and the use of unique molecular barcodes.

5′ RACE Library Preparation

Employs a single primer set, unlike multiplex PCR that uses numerous V-gene-specific primers.
Minimizes amplification bias, ensuring uniform representation of all BCR clonotypes.
Generates libraries that accurately reflect the true clonal frequencies.

Unique Molecular Barcodes

Each RNA molecule is tagged with a unique barcode prior to amplification.
Enables precise identification of PCR duplicates and correction of sequencing errors.
Produces a "clean" dataset, offering highly reliable immune repertoire quantification.

See How Our Advanced BCR Analysis Can Boost Your Research. Contact Us.

Comprehensive Service Matrix: Meeting Your Diverse Research Needs

Creative Biolabs offers a modular suite of services tailored to address diverse research questions, from broad repertoire characterization to highly specific molecular investigations.

Fig.2 Developing an analysis plan. (Creative Biolabs AI)

Single Cell BCR Profiling Service

This service resolves the BCR repertoire at the ultimate resolution of the individual cell. By partitioning single B cells, we can physically link cognate heavy and light chains, providing complete information on the paired, functional BCR unit—a critical aspect for recombinant antibody development and understanding clonal selection.

Fig.3 Writing an experimental plan. (Creative Biolabs AI)

B Cell MicroRNA Profiling Service

Recognizing that cellular function is governed by complex regulatory networks, this service integrates BCR sequencing with microRNA profiling to provide a multi-omics view of B-cell regulation, activation, and differentiation states.

Fig.4 Analyzing the data. (Creative Biolabs AI)

BCR Repertoire Analysis Service for Novel Allele Identification

We leverage the depth of our sequencing data to identify previously unannotated germline V, D, and J alleles, contributing to a more complete understanding of population-level immunogenetic variation and its impact on disease susceptibility.

Fig.5 Project Flowchart. (Creative Biolabs AI)

BCR Repertoire Profiling Service for B Cell Clone Identification

This core service focuses on the identification, quantification, and tracking of B-cell clonal lineages. We precisely define clones based on shared V(D)J gene usage and CDR3 sequence identity, enabling the monitoring of clonal dynamics in response to stimuli such as infection, vaccination, or therapy.

Fig.6 Discussion of experimental results. (Creative Biolabs AI)

BCR Repertoire Profiling Service for SHM Pattern Analysis

We provide in-depth analysis of somatic hypermutation patterns within B-cell lineages. This service elucidates the process of affinity maturation and can reveal antigen-driven selection pressures, offering insights into the evolution of the immune response.

Fig.7 Conducting experiments in a clean bench. (Creative Biolabs AI)

Unique Molecular Barcoding based Full-Length Immunoglobulin Profiling Services

This premier service combines our UMB technology with long-read sequencing to deliver error-corrected, full-length immunoglobulin sequences, preserving the native pairing of V(D)J regions with their constant region isotype.

Fig.8 Experimental data analysis. (Creative Biolabs AI)

Unbiased BCR Repertoire Profiling Services

Our foundational 5' RACE-based services provide a comprehensive and quantitatively accurate overview of the entire expressed BCR repertoire, applicable across multiple species for comparative immunology and preclinical model studies.

Tailored BCR Repertoire Solutions for Your Project. Request a Quote.

Application Prospects

The insights derived from high-fidelity BCR repertoire analysis have profound implications across numerous fields of biomedical research and clinical development.

Oncology and Immuno-Oncology

In hematological malignancies like chronic lymphocytic leukemia and B-cell lymphomas, BCR sequencing is instrumental for identifying malignant clones, assessing clonal heterogeneity, and monitoring minimal residual disease with unparalleled sensitivity.

Infectious Disease and Vaccinology

Our services enable a deep characterization of the humoral response to pathogens and vaccines. This includes quantifying the diversity of responding B cells, tracking the emergence of high-affinity, class-switched clones, and identifying broadly neutralizing antibody lineages.

Autoimmune Disorders

Analysis of the BCR repertoire in diseases such as systemic lupus erythematosus or rheumatoid arthritis can uncover pathogenic, auto-reactive B-cell clones, providing mechanistic insights and potential biomarkers for disease activity and therapeutic response.

Antibody Discovery and Engineering

By sequencing the repertoires of immunized animals or convalescent human subjects, our platform can rapidly identify antigen-specific antibody sequences, serving as a powerful engine for the discovery of novel therapeutic and diagnostic antibodies.

Transplantation Immunology

Monitoring the BCR repertoire post-transplantation can help in assessing the state of immune reconstitution and predicting or diagnosing antibody-mediated rejection.

Maximize the Potential of Your Immune Profiling. Book a Consultation.

Why Choose Us? The Unique Technical Advantages of Creative Biolabs

Choosing Creative Biolabs for BCR repertoire analysis provides access to a combination of cutting-edge technology, deep scientific expertise, and a commitment to data quality.

End-to-End Expert Support

Our team of seasoned immunologists and bioinformaticians provides comprehensive support throughout the project lifecycle, from experimental design to advanced data analysis and interpretation.

Holistic Repertoire Interrogation

We provide a complete picture of the BCR repertoire, including full-length variable regions, isotype information, SHM analysis, and, where required, cognate heavy-light chain pairing at the individual cell level.

Customization and Flexibility

We accommodate a wide range of sample types—including whole blood, peripheral blood mononuclear cells (PBMCs), isolated B cells, and tissue—and can tailor our services for diverse species to meet specific research needs.

Actionable Bioinformatic Deliverables

We provide a comprehensive data analysis report that goes beyond raw sequences, delivering intuitive visualizations and detailed statistics on clonal diversity, V(D)J gene usage, CDR3 length distribution, SHM frequency, and clonal lineage trees.

Explore Cutting-Edge BCR Analysis Services. Connect with Our Team.

FAQs

Q: What sample types do you accept for BCR repertoire analysis?
A: We accept a wide array of input materials, including fresh or frozen whole blood, bone marrow aspirates, isolated B cells, PBMCs, and tissue samples (fresh, frozen, or formalin-fixed, paraffin-embedded). Our team can provide specific guidance on sample collection and preservation to ensure optimal data quality.
Q: Why is RNA used as the starting material instead of genomic DNA (gDNA)?
A: We preferentially use RNA because it selectively captures the sequences of actively expressed BCRs. This approach provides a direct measure of the functional B-cell repertoire, avoiding the noise from non-productive rearrangements, pseudogenes, and resting B cells that can be present in gDNA-based analyses.
Q: What is included in the final bioinformatics report?
A: Our comprehensive report includes raw sequencing data, quality control metrics, and an in-depth analysis of the repertoire. Key deliverables include clonotype identification and quantification, V(D)J gene usage frequencies, CDR3 length distribution analysis, somatic hypermutation rates, isotype distribution, and visualizations of repertoire diversity and clonal overlap between samples.

From Data to Discovery. Request Your BCR Analysis Consultation.