Antibody Engineering, Reimagined by AI

AI Antibody Design
Stable Cell Line Development
OEM / ODM Manufacturing
AI Antibody Engineering Platform — AntibodyLLM
95%+

project success rate

99%

sequencing success rate

mg → kg

scale production

expression yield improvement

End-to-End Antibody Engineering Services

From AI-powered antibody design to GMP-ready manufacturing and bioactivity validation — every step under one roof.

AI Antibody Design

De novo antibody generation, affinity maturation, and humanization powered by our proprietary antibody LLM. In silico design closes the loop with wet-lab expression and functional validation.

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Antibody Discovery & Sequencing

Full antibody discovery from antigen to hit, plus sequence recovery from hybridoma or recombinant sources via NGS, LC-MS/MS, and Sanger. Industry-leading 99% antibody sequencing success rate.

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Stable Cell Line Development

Proprietary CHO cell line with CRISPR site-specific integration and UCOE technology. Deterministic, high-yield stable expression — no random integration variability, no gene silencing.

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Recombinant Protein Expression

Transient and stable recombinant protein expression using optimized CHO cell systems. From mg-scale feasibility to gram-scale antibody expression, with >95% purity guaranteed.

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Monoclonal Antibody Production

Scalable recombinant monoclonal antibody production from mg to kg scale. Consistent batch quality with full analytical characterization, release testing, and bioactivity confirmation.

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OEM / ODM Manufacturing

White-label contract antibody manufacturing for IVD companies and biotech. Flexible OEM antibody manufacturing with NDA protection, full quality documentation, and regulatory support.

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Antibody Sequencing

99% Sequencing Success Rate — Sequence-Verified Before Delivery

AntibodyLLM's antibody sequencing service recovers your antibody variable region sequences (VH/VL) with an industry-leading 99% success rate. We do not deliver unverified sequences — every result passes our internal functional verification pipeline. Sequence confirmed, activity validated, then delivered.

  • 99% success rate across hybridoma and recombinant antibody sources
  • Sequence-verified before delivery — we only hand over functionally confirmed sequences
  • One-stop service: sample submission → sequencing → expression verification → bioactivity validation (weblab) → delivery, no third parties needed
  • Multi-platform: NGS deep sequencing, LC-MS/MS, Sanger — method matched to your sample type
Learn about antibody discovery & sequencing →

One-Stop Sequencing Pipeline

1
Sample Submission

Hybridoma cells, purified antibody, or serum

2
Antibody Sequencing

NGS / LC-MS/MS / Sanger — VH & VL recovery

3
Expression Verification

Recombinant expression to confirm sequence identity

4
Bioactivity Validation (Weblab)

ELISA, SPR, or cell-based assay — in-house

Verified Delivery

Sequence report + activity data — no third parties

A Deterministic Expression System

Not random integration. Not unstable expression. Engineered. Controlled. Scalable.

Proprietary CHO Cell Line Platform

Our in-house CHO cell line is engineered for high-yield antibody expression and industrial scalability. Purpose-built for recombinant antibody and protein production, it delivers consistent output from mg to kg scale with >95% purity.

CRISPR Site-Specific Integration

CRISPR-guided insertion targets a defined, transcriptionally active genomic locus — eliminating the clonal variability caused by random integration. Every stable cell line is built from the same engineered foundation, reducing screening time by up to 50%.

UCOE-based Stable Expression

Ubiquitous Chromatin Opening Elements (UCOE) maintain an open chromatin state at the integration site, preventing gene silencing during long-term culture. The result is stable, long-term expression without the drift that plagues conventional stable cell lines.

Deterministic expression, not random screening

Learn more on our technology platform page

Antibody LLM Platform

A closed-loop system integrating AI design with wet-lab reality:

Step 1
AI Design
Step 2
Expression Prediction
Step 3
Stable Integration
Step 4
Scale-Up Production
Step 5
Bioactivity Validation

From in silico to in vitro — seamlessly.

In-House Bioactivity Validation — From Sequence to Functional Proof

Antibody bioactivity validation is the functional confirmation that your antibody binds its target with specificity and triggers the intended biological response. AntibodyLLM's weblab runs all validation in-house — no outsourcing, no delays, full traceability.

ELISA & Binding Assays

Quantitative antigen-binding confirmation. Direct, indirect, sandwich, and competition ELISA formats for specificity and titer determination. First-line screen for all antibody sequencing and production projects.

SPR Binding Kinetics

Surface plasmon resonance (SPR) for real-time, label-free measurement of association rate (ka), dissociation rate (kd), and equilibrium dissociation constant (KD). Critical for affinity ranking and lead selection.

Cell-Based Functional Assays

Receptor blocking, ADCC/CDC, cell viability, and proliferation assays to confirm biological activity in relevant cellular models. Essential for therapeutic antibody development and IVD antibody qualification.

Every antibody we deliver comes with bioactivity data.

No third-party labs. No black boxes. Full traceability from sequence to functional proof — all under one roof.

Learn about our AI antibody design service →

Real Results. Real Impact.

Increase in expression yield

For a leading biotech client's stable cell line project using our CRISPR site-specific integration platform.

View case study →
99%

Antibody sequencing success rate

Rescued multiple hybridoma sequencing projects that competitors deemed impossible. Sequence-verified and activity-confirmed before delivery.

Learn about sequencing →
50%

Reduced development timeline

Cut typical R&D timelines by half for IVD clients through our one-stop sequencing-to-validation pipeline.

View case study →

Frequently Asked Questions

Everything you need to know about AntibodyLLM's platform and services.

What is AI antibody design and how does it work?

AI antibody design uses large language models (LLMs) trained on protein sequence and structure data to generate, predict, and optimize antibody sequences in silico. AntibodyLLM's platform combines AI-generated candidates with wet-lab expression and bioactivity validation in a closed-loop workflow — dramatically reducing design cycles compared to traditional hybridoma or phage display methods. The result: faster lead generation, lower cost, and higher hit rates.

What is antibody sequencing and what success rate do you achieve?

Antibody sequencing recovers the precise variable region sequences (VH and VL) of an antibody from hybridoma cells or purified protein. AntibodyLLM achieves a 99% antibody sequencing success rate using NGS deep sequencing, LC-MS/MS, and Sanger methods matched to your sample type. We only deliver sequences that have passed our internal verification — expression-confirmed and bioactivity-validated in our weblab before the final report is handed over. No unverified sequences, ever.

What does recombinant protein expression involve?

Recombinant protein expression is the production of a target protein by introducing its gene into a host cell system — typically CHO, HEK293, or E. coli — and inducing protein production at scale. AntibodyLLM uses optimized CHO cell systems for both transient and stable antibody expression, delivering >95% purity from mg-scale feasibility studies to gram-scale manufacturing. Our proprietary CRISPR-integrated CHO cell lines ensure consistent, high-yield output batch to batch.

How do you validate antibody bioactivity?

AntibodyLLM's in-house weblab performs full bioreactivity validation including ELISA for binding specificity and titer, SPR (surface plasmon resonance) for real-time kinetics (ka, kd, KD), and cell-based functional assays for receptor blocking, ADCC, and biological activity. All validation is conducted in-house — no third-party outsourcing — ensuring faster turnaround, complete data traceability, and a single point of accountability from sample to result.

What is stable cell line development and why does it matter?

Stable cell line development creates a host cell (typically CHO) that permanently expresses your antibody or protein of interest — essential for consistent, scalable biopharmaceutical manufacturing. AntibodyLLM uses CRISPR site-specific integration and UCOE (Ubiquitous Chromatin Opening Element) technology to eliminate random integration and gene silencing. The result is a deterministic, high-yield CHO cell line with 95%+ project success rate and up to 3× improvement in expression yield versus conventional stable cell line methods.

Do you offer OEM antibody manufacturing?

Yes. AntibodyLLM offers white-label OEM antibody manufacturing for IVD companies, diagnostics developers, and biotech firms. Our OEM/ODM service covers cell line development, scale-up production, analytical characterization, bioactivity validation, and packaging under NDA. We support mg to kg quantities with full quality documentation and regulatory support. Contact us to discuss your OEM antibody manufacturing requirements.

Build your next antibody with us

From AI antibody design to sequence-verified delivery and bioactivity validation — one team, one platform, zero outsourcing.