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Miniprotein Production Services

High-Throughput, High-Titer Production of Miniproteins in CHO Cells

WuXi Biologics CRO Services supports miniprotein production using a high-throughput workflow that streamlines high-titer CHO expression and rapid binding constant (Kd) measurements. Compared with conventional E. coli expression, our transient CHO expression systems deliver higher yield and throughput, lower endotoxin levels, and faster delivery for HTP binding assays to help accelerate miniprotein discovery and generate building blocks for bispecifics.

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Core Strength

Miniprotein Production Service Highlights

Ultra-High-Titer CHO Production

Achieve exceptional miniprotein yields of 100-500 mg/L

High-Throughput Workflow

Produce up to 1,000 molecules daily with HTP affinity measurements

Rapid, One-Stop Solution

Move from sequence to SPR/BLI binding data in 4-5 weeks


  • Ultra-High-Titer CHO Production Achieve exceptional miniprotein yields of 100-500 mg/L
  • High-Throughput Workflow Produce up to 1,000 molecules daily with HTP affinity measurements
  • Rapid, One-Stop Solution Move from sequence to SPR/BLI binding data in 4-5 weeks

Service Details

Miniprotein Production Service Details

Designed to accelerate miniprotein production, our MiniProtein Line platform combines construct generation and high-throughput, high-titer CHO production into a streamlined 3-4 week workflow, with HTP binding constant (Kd) measurement options by SPR and BLI in an additional 1-2 weeks.

Service Item Deliverables QC Turnaround
24 × 3 mL CHO 0.5 mg from single-step affinity purification Bradford, SEC-HPLC, SDS-PAGE, LC-MS (optional) 3–4 weeks
≥20 mL CHO 2 mg from 20 mL from two-step purification SEC-HPLC, SDS-PAGE, endotoxin (<0.5 EU/mg), LC-MS (optional)

De novo-designed miniprotein structure for high-throughput, high-titer CHO production.

Case Studies

Supporting Miniprotein Production from High-Throughput to Scale Up

Case Study 1: High-Titer, High-Throughput Miniprotein Production Across 20 Different Structures

This case study demonstrated HTP production of 48 miniproteins with 20 different structures through a single-step purification. With an average titer of 197 mg/L, most miniproteins reached titers above 100 mg/L in CHO cells, a remarkable achievement for molecules around 10 kDa.

Case study: High-throughput production of 48 miniproteins with 20 different structures in CHO cells with single-step purification.

  • HTP production of 48 miniproteins spanning 20 different structures
  • Single-step purification delivering an average titer of 197 mg/L
  • Most miniproteins reached titers above 100 mg/L in CHO cells — notable for ~10 kDa molecules
Case Study 2: High-Purity, Low-Endotoxin Miniprotein Purification Workflow
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This case study highlights a miniprotein purification workflow combining Ni-affinity purification, TEV cleavage, recapture, and SEC polishing. From 1 L CHO cells, the process delivered miniproteins with 99% purity, 450 mg/L after SEC, and endotoxin <0.015 EU/mg, supporting downstream discovery applications.

Case study: Miniprotein purification workflow with Ni-affinity, TEV cleavage, recapture, and SEC polishing delivering high purity and low endotoxin.

  • End-to-end workflow: Ni-affinity purification, TEV cleavage, recapture, and SEC polishing
  • From 1 L CHO cells: 99% purity and 450 mg/L yield after SEC
  • Endotoxin <0.015 EU/mg, supporting downstream discovery applications

Why WuXi Biologics

Why Work with WuXi Biologics for Miniprotein Production

  • High-Titer CHO Expression: Generate miniproteins with high yield and low endotoxin compared with traditional E. coli approaches
  • High-Throughput Production & Screening: Streamline rapid molecule generation with binding constant measurement in 4-5 weeks
  • Discovery to Scale-Up Support: Move from thousand-molecule screening to gram-level material generation with greater speed and confidence

Get Started

 

Accelerate from HTP Miniprotein Production to Next-Gen Therapeutics Discovery

Advance your miniprotein projects with our streamlined production and screening platform. From HTP CHO expression to binding assay support, we help deliver high-quality miniproteins for building next-gen therapeutics, and generate actionable data with speed, flexibility, and scientific rigor.

Talk to Our Miniprotein Production Experts

 

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