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Phone
+86-0755 2308 4243
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Address
Room 309, Meihua Building, Taiwan Industrial Park, No.2132 Songbai Road, Bao'an District, Shenzhen, China
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E-mail
Precision Peptide Library Synthesis Services
Biorunstar provides reliable peptide library solutions to support your research. With advanced solid-phase synthesis and high-throughput parallel platforms, we handle projects from small sets to 10,000+ peptides, with consistent quality and fast turnaround.
Our team also supports sequence design and applies strict quality control at every step, ensuring each library is delivered with accuracy and reproducibility for drug discovery and immunotherapy studies.
Comprehensive Library Types
Please select the library type that fits your research goal
Overlapping Peptide Library

T-cell epitope mapping
sequences for binding sites
Ensuring 100% sequence coverage
Scan your entire protein sequence and export results instantly
Truncation Peptide Library

Determining the minimum active fragment
Identifying essential residues for stability
Optimizing lead compounds for cost reduction
Automatically generate truncated sequences from N-term to C-term
T-cell Truncated Library

Vaccine development and efficacy testing
Monitoring immune responses in clinical trials
Identifying MHC-restricted minimal epitopes
Specialized design tool for precise T-cell epitope truncation
Scrambled Peptide Library

Establishing strict negative controls for bioassays
Screening for novel lead compounds
Randomize your original sequence with one click for negative controls
Alanine scanning

Identifying critical residues (hot spots) for activity
Mapping functional side chains in protein interactions
Optimizing peptide binding and structural integrity.
Identify critical amino acid residues for biological activity efficiently
1-Positional
Scanning Library

Systematic sequence optimization for higher affinity
Enhancing receptor-binding selectivity and potency
Rapid screening of multiple amino acid substitutions
Optimize lead peptides by substituting specific positions with all 20 amino acids
2-Positional
Scanning Library

Systematic sequence optimization for higher affinity
Enhancing receptor-binding selectivity and potency
Rapid screening of multiple amino acid substitutions
Optimize lead peptides by substituting specific positions with all 20 amino acids
3-Positional
scanning Library

Systematic sequence optimization for higher affinity
Enhancing receptor-binding selectivity and potency
Rapid screening of multiple amino acid substitutions
Optimize lead peptides by substituting specific positions with all 20 amino acids
Specifications of Peptide Library Synthesis
| Feature | Specifications | ||
| Library Size | 12 to 10,000+ peptides | ||
| Peptide Length | 5 – 25 amino acids (up to 40aa upon request) | ||
| Purity Options | Purity levels available at Crude, >70%, >90%, up to >98% | ||
| Modification | Biotin, FITC, Phosphorylation, Methylation, Cyclization, etc. | ||
| Quantity | 1-4mg, 6-10mg, 11-15mg, 16-20mg | ||
| Lead Time |
2-3 weeks for 5-15 AA; 3-4 weeks for 16-25 AA |
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| Deliverable format | Lyophilized peptides in individual, well-labeled vials | ||
| Quality Control | Individual CoA, HPLC & MS reports included for each sequence | ||
case Studies
At Biorunstar, we go beyond standard synthesis to tackle complex peptide challenges. Whether supporting large-scale controls or high-throughput screening projects, our work is driven by precision, reliability, and confidentiality.
Explore selected case studies below to see how we deliver results in real research projects.
Case 1: Large-Scale Scrambled Peptide (Individual Synthesis)

Case 1: Typical HPLC profile (Purity: 98.3%)
Challenge: High-purity synthesis of a complex scrambled control (>98%) with a substantial 200 mg yield for in vivo bioassays.
Solution: Delivered the target peptide via optimized purification, ensuring zero cross-contamination and consistent batch quality, validated by detailed HPLC/MS.
Case 2: Custom Peptide Library for CAR-T Screening

Case 2: Organized vial rack delivery format
Challenge: Rapid synthesis and reliable aliquoting of hundreds of unique sequences for T-cell antigen screening.
Solution: Delivered in organized vial racks. Each vial is individually labeled and QC-verified, providing maximum flexibility and ease of handling for lab researchers.
Case 3: Truncation Library for Tuberculosis Vaccine Discovery

Case 3: Systematic project labeling (1-71)
Challenge: Identifying minimal active immunodominant epitopes within M. tuberculosis proteins to accelerate vaccine design.
Solution: Provided a high-throughput truncation library that enabled the research team to map essential antigenic regions with high resolution.
Why Partner with Biorunstar?
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Uncompromised Quality
CoA, HPLC & MS reports for each peptide
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Standard libraries ready in as little as 2-3 weeks
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Direct consultation for complex designs
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Competitive rates with no hidden costs
Ready to Move Your Peptide Project Forward?
Partner with Biorunstar for reliable peptide synthesis and tailored library design. Our team supports you from sequence planning to final delivery, ensuring quality, scalability, and strict confidentiality for your research.
Full Synthesis Projects: www.biorunstar.com/projects
Request a Quote: sales@biorunstar.com