Hybridoma antibody sequencing|Synbio Technologies

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General Introduction of Hybridoma Antibody Sequencing

Monoclonal antibody sequencing includes hybridoma cell line sequencing and clonal B cell sequencing for antibody identification and characterization.

Synbio Technologies leverages Sanger sequencing and NGS technologies to provide accurate and efficient antibody sequencing services across multiple species. We sequence heavy and light chain variable regions (VH/VL) and full-length antibody coding sequences from mouse, rat, rabbit, human, hamster, camel, sheep, and more. Supported antibody isotypes include IgG, IgM, IgA, IgE, and additional subtypes, enabling reliable sequencing solutions for a broad range of antibody discovery and research needs.

Highlights

Service Details

Method	Best Fit	Timeline	Starting Price	Deliverables
Sanger RT-PCR, cloning & confirmation	Standard monoclonal hybridomas with a single productive heavy and light chain.	As fast as 5 business days	From $700	VH/VL DNA & amino acid sequences, CDR annotation, optional expression plasmid.
NGS High-throughput transcript profiling	Mixed populations, ambiguous Sanger results, or samples requiring transcript frequency ranking.	~2 weeks	From $2,000	Sequence frequency report, VH/VL sequences, CDR annotation, candidate chain ranking.
Full-length Variable & constant regions	Projects needing complete antibody coding sequences for expression or format engineering.	Project-dependent	Quote-based	Full heavy & light chain sequences, isotype confirmation, cloning-ready files.

Send the material that best protects RNA quality.

Sample Type	Recommended Amount	Shipping	Notes
Hybridoma cells in RNA later or DNA/RNA Shield	>1 × 10⁶ cells preferred	Ice pack (domestic); dry ice (international)	Recommended for preserving RNA integrity during transit.
Cell pellet	>1 × 10⁶ cells preferred	Dry ice	Avoid repeated freeze-thaw cycles before shipment.
Cells in cryopreservation media	One viable frozen vial	Dry ice	Useful when repeat extraction or follow-up validation may be needed.
Total RNA	Contact us for project review	Dry ice	Include concentration, purity, and integrity information if available.

Please include antibody species, isotype if known, target antigen, prior sequencing attempts, and whether downstream recombinant production is desired.

Why sequence your hybridoma?

Protect the antibody before the cell line changes.

Hybridoma sequencing preserves the VH/VL sequence before productivity drops, contamination happens, or a clone is lost.
Synbio takes the project from cells to annotated sequence, with optional cloning, recombinant expression, and validation.

Recover paired antibody regions

VH/VL DNA, amino acid translation, framework regions, and CDR annotation.

NGS

Resolve complex transcripts

Use NGS for mixed clones, extra chain transcripts, or unclear Sanger reads.

IgG

Continue into production

Move into synthesis, plasmids, expression, purification, and binding checks.

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Workflow

Standard workflow for recovering VH/VL sequences, annotating CDRs, and delivering a comprehensive sequencing report.

Sample review

Species, isotype, sample type, and project goal confirmed before processing.

RNA extraction

Total RNA isolated from cells, pellets, or submitted RNA; cDNA synthesized.

PCR amplification

Species- and isotype-specific primers amplify VH/VL or full-length regions.

Sequencing & analysis

Sanger or NGS; reads assembled, CDRs annotated, report prepared.

Optional validation

Recombinant IgG or scFv expression with optional binding confirmation.

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Applications

From reagent validation to therapeutic lead development.

Cell line authentication

Confirm molecular identity and preserve sequence before banking, transfer, or scale-up.

Recombinant conversion

Convert hybridoma-derived antibodies into recombinant IgG, scFv, Fab, Fc-fusion, bispecific, or tagged formats.

Humanization & affinity maturation

Use CDR and framework annotation as the starting point for humanization and binding optimization.

IP and documentation

Generate sequence-level records for patent preparation, tech transfer, and long-term reproducibility.

One-Stop Antibody Support

Continue beyond sequencing without switching vendors.

Antibody gene synthesis

Codon optimization, synthesis, and cloning into expression-ready vector backbones.

Recombinant antibody production

Transient mammalian expression, purification, and QC for recombinant IgG or custom antibody formats.

scFv and Fab construction

Linker design, tag selection, bacterial or mammalian expression, and purification support.

Binding validation

Optional ELISA or project-specific assay to confirm recombinant antibody retains target binding.

Humanization

Framework selection, CDR grafting, back-mutation strategy, and sequence optimization for therapeutic programs.

Affinity maturation

CDR variant library design, screening support, and lead optimization for improved potency or specificity.

Deliverables

Raw sequencing data and quality review

Heavy chain and light chain DNA sequences

Translated amino acid sequences

Framework and CDR annotation

Species and isotype notes when provided or inferred

Candidate chain ranking for NGS projects

Cloning-ready sequence files upon request

Optional plasmid, gene synthesis, expression, purification, and binding validation

Case Study

Mouse hybridoma sequencing: variable regions to full-length antibody assembly.

This Synbio Technologies project recovered validated IgG1 antibody sequences from mouse hybridoma cells using PCR-Sanger sequencing, isotype screening, 3′ RACE, cloning, and sequence analysis.

Primer strategy for hybridoma sequencing

Species- and isotype-aware primer design supported recovery of VH and VL regions, followed by constant region amplification for full-length sequence assembly.

RNA QC confirmed template quality before cDNA synthesis and amplification.

Variable region analysis annotated framework and CDR regions for sequence interpretation.

Constant region data analyzed by IMGT/DomainGapAlign for sequence classification.

Final assembly combined variable and constant regions into a full-length antibody sequence.

FAQs

What information do you need before starting a hybridoma sequencing project?

Please provide the antibody species, isotype or subtype if known, sample type, estimated cell number or RNA amount, antigen information, and the final project goal. The goal matters because authentication, recombinant production, humanization, and scFv construction can require different deliverables.

Can you sequence antibodies from species other than mouse?

Yes. Synbio Technologies supports sequencing across many species including mouse, rat, rabbit, human, hamster, camel, and sheep. For uncommon species or subtypes our team reviews the project and designs an appropriate amplification strategy.

Why sequence the hybridoma instead of sequencing purified antibody protein?

Hybridoma gene sequencing reads antibody transcripts directly from the producing cells. This avoids protein sequencing ambiguities (e.g., leucine vs. isoleucine) and produces DNA sequences ready for cloning and recombinant expression.

What happens if my hybridoma expresses more than one heavy or light chain?

NGS can identify transcript frequency and candidate chains. Selected VH/VL combinations can then be synthesized and expressed as recombinant antibody or scFv for binding confirmation.

Can you produce recombinant antibody after sequencing?

Yes. Sequenced antibody genes can be synthesized, cloned, expressed, purified, and optionally tested for antigen binding — useful for long-term reproducibility, format conversion, or engineering.

Do you provide full-length antibody sequencing?

Yes. Customers can request variable-region sequencing or full-length antibody coding sequences depending on project objective and sample quality.

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