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AI + Wet-Lab Validation

Antibody Affinity Maturation Services

Improve antibody affinity by up to 1,000-fold in as little as 3 weeks.

AI-driven design combined with wet-lab validation to optimize antibody affinity while monitoring developability.

  • Minimum 10-fold affinity increase guaranteed
  • AI-designed variants validated by ELISA + SPR/BLI
  • Developability monitored alongside affinity
  • 100% IP ownership

Contact usExplore the Workflow ↓

Why ProteoGenix?

AI-Powered Affinity Maturation to Select the Best Antibody Candidate

Increase antibody affinity while considering the properties that matter for downstream development.

  • Up to 1,000×

    Higher affinity

    Strengthens binding to lower your effective dose or sharpen assay sensitivity.

  • Wet-Lab Validated

    Affinity Gains Confirmed at the Bench

    Every AI-proposed mutation is reviewed by a bioinformatician, then tested at the bench.

  • Multi-Criteria

    Developability Ranked Alongside Affinity

    Each variant is ranked on several criteria, including developability.

  • ≥10×

    Minimum Guaranteed Improvement

    Minimum 10-fold affinity increase guaranteed with the AI-driven approach.

  • 100% IP Free

    Your Antibody, Your IP

    You own 100% of the IP, with no royalties or milestone payments.

  • 25+ Years

    Antibody Engineering Expertise

    ProteoGenix has supported 970+ antibodies through preclinical development and clinical trials.

AI-Driven Affinity Maturation

AI-Guided Antibody Optimization, Validated in the Lab

Our affinity maturation workflow combines AI-guided variant design with experimental feedback to identify targeted amino-acid substitutions.

Candidate variants are reviewed by our bioinformatics team before production and experimental testing. Experimental results can then inform subsequent design rounds.

From computational design to experimental evidence

  • Epitope–paratope mapping
  • Machine-learning-guided amino-acid substitutions
  • Bioinformatician review of AI-proposed variants
  • Experimental binding validation
  • Up to 3 iterative design rounds

AI-Driven Antibody Affinity Maturation Workflow

  • From 3 Weeks

A structured, iterative design process combines AI-guided variant generation with experimental validation. You receive at least 20 purified, ready-to-use affinity-optimized antibody variants.

  • 01

    AI-Powered Variant Design

    Epitope–paratope mapping and machine-learning-guided amino-acid substitutions are used to design candidate variants.

  • 02

    High-Throughput Production

    20 selected variants are expressed and purified with full quality control.

  • 03

    Quantitative Validation

    Every variant is screened by ELISA titration against the antigen. The best-performing variants undergo KD measurement by SPR or BLI.

  • 04

    Iterative Learning Loop

    Experimental results sharpen the next AI design round. Up to 3 rounds can be performed to converge on the best candidate.

Multi-Criteria Variant Selection

Antibody Affinity Maturation Guided by Multi-Criteria Ranking

Every affinity-matured variant is scored in parallel against additional criteria, helping keep the highest-affinity candidates viable for further development.

AFFINITY IS NOT OPTIMIZED IN ISOLATION

High-affinity variants are prioritized based on their overall profile and suitability for further development.

Criteria considered during variant ranking

ManufacturabilityDevelopabilityExpression YieldStabilitySolubility & AggregationChemical Liabilities

WHY IT MATTERS

Prioritize High-Affinity Candidates with Better Development Profiles

Deprioritizing high-risk variants at this stage helps protect your timeline and budget, well before scale-up or manufacturing decisions are made.

What You Receive from Your Affinity Maturation Project

Optimized antibody variants together with the sequences, reports and experimental data generated during your project.

  • Affinity-Improved Antibody

    Purified and ready-to-use antibody variant with at least 10-fold affinity improvement.

  • Designed VH/VL Sequences

    Designed VH/VL sequences and all proposed VH/VL combinations.

  • Epitope/Paratope Report

    Detailed epitope/paratope report generated during the project.

  • Full Experimental Dataset

    Binding and developability data generated during the project.

  • Ready for Further Development

    Continue with humanization, deeper developability assessment or antibody production if required.

  • 100% IP Ownership

    No royalties or milestone fees.

Case Study

AI-Guided Affinity Maturation for a Neurology Diagnostics Antibody

A pharmaceutical company wanted to increase the affinity of a diagnostic antibody for neurodegenerative disease detection.

  • 20

    AIxplore®-designed variants

  • Up to 20×

    higher affinity vs parental antibody

  • BLI + ELISA

    experimental validation

  • 3D structural analysis

    backbone stability & developability

Experimental Results

Binding Affinity of Top-Performing Variants

Binding constant Kd of affinity-matured antibody variants Ab-1 to Ab-5 compared with the parental WT antibody by biolayer interferometry

Binding constant of the top-performing affinity-matured variants compared with the parental antibody (WT), as determined by biolayer interferometry (BLI).

Key Result

Up to 20× Higher Affinity Confirmed by BLI

Lead variant Ab-1
Kd 1.99 × 10−10 M
Parental antibody (WT)
Kd 5.57 × 10−9 M

Paratope–epitope mapping guided rational, targeted design. 20 AIxplore® variants were reviewed by our bioinformatics team before laboratory testing.

The lead variant showed increased affinity by BLI, with validation by SDS-PAGE and ELISA titration.

Backbone stability and developability were confirmed by 3D structural analysis across variants.

Two Approaches

AI-Driven or Phage Display Antibody Affinity Maturation?

Choose between targeted AI-guided optimization and a library-based wet-lab affinity maturation strategy.

  • AI-Driven Affinity Maturation

    Targeted antibody variant design followed by experimental production, binding validation and iterative optimization.

    • From 3 Weeks
    • Up to 20 designed variants per round
    • Up to 3 iterative learning rounds
    • ELISA + SPR/BLI validation
    • Developability considered during variant ranking
    • Minimum 10-fold affinity improvement guaranteed
  • Phage Display Affinity Maturation

    A wet-lab-only approach based on targeted controlled-mutagenesis VH/VL libraries and iterative biopanning.

    • From 7 weeks
    • 4–6 panning rounds per library
    • ≥96 clones screened by ELISA
    • Unique variants sequenced
    • Minimum 5-fold affinity increase guaranteed

Phage Display vs AI-Driven Affinity Maturation

Criteria AI-Driven Maturation Phage Display
Approach Deep-learning targeted paratope substitutions,
structure-informed when epitope is known
Controlled-mutagenesis VH/VL libraries
enriched by iterative biopanning
Antigen structure Works with or without epitope knowledge Antigen required for panning
Iteration Up to 3 learning rounds, with experimental
results informing subsequent rounds
4–6 panning rounds per library
Variants assessed Up to 20 designed variants per round Enriched pool followed by ≥96 clones
screened by ELISA
Validation ELISA followed by SPR/BLI for KD ELISA + sequencing of unique binders
Developability Basic developability monitored during selection Optional
Turnaround From 3 weeks From 7 weeks
IP 100% IP free 100% IP free

Continue Your Antibody Development Program

Extend your affinity maturation project with additional antibody optimization or production services when needed.

  • AI-Driven Antibody Humanization

    Convert non-human antibodies into humanized candidates in 3–4 weeks.

    Explore antibody humanization

  • AI-driven Antibody Developability Improvement

    Go beyond affinity with deeper stability, aggregation and manufacturability screening.

    Explore developability services

  • Transient Antibody Production

    Produce purified antibodies from milligram to gram scale, delivered in 15 business days.

    Explore transient production

  • Stable Cell Line Development

    Develop royalty-free stable cell lines, with top clones reaching 8 g/L and monoclonality assurance via VIPS™.

    Explore stable cell line development

Antibody Affinity Maturation FAQs

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