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Modified & Labeled Peptide Synthesis

Custom Modified & Labeled Peptides

High-quality custom peptides with labels, cyclization, dyes, PTMs, conjugates, FRET and stable isotope options — made in Germany under a certified quality management system.

Modification Options

Peptide Modification Options

From fluorescent labels and biotin tags to PTMs, FRET pairs and peptide conjugates, JPT supports custom modified peptides for demanding scientific workflows.

Fluorescent / Dye-Labeled Peptides

Custom peptides labeled with fluorescent dyes for detection, imaging, binding and assay workflows.

Biotinylated Peptides

Biotin-labeled peptides for capture, immobilization, screening and streptavidin-based assay formats.

P

Phosphorylated Peptides

Phosphopeptides and PTM-containing peptides for signaling, proteomics and antibody-related research.

FRET Peptides

FRET peptide substrates and labeled peptide pairs for enzymatic assays and activity measurements.

13

Stable Isotope-Labeled Peptides

Isotope-labeled peptides for LC-MS/MS, quantitative proteomics and bioanalytical workflows.

Peptide Conjugates

Peptide conjugation options for carrier proteins, linkers, tags, labels and application-specific designs.

PTMs and Specialty Modifications

Post-translational modifications and specialty peptide designs for complex research questions.

Peptide Cyclization

Custom cyclic peptides for conformationally constrained designs, binding studies, and advanced research applications.

Not sure which modification fits your project? Ask JPT’s scientific support team for guidance before requesting synthesis.

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Scientific Workflows

Built for Scientific Research Workflows

JPT supports modified and labeled peptide projects for biotech, pharma, diagnostics and academic research.

Proteomics and LC-MS/MS workflows Immunology and immune monitoring Assay development Biomarker and bioanalysis projects Drug discovery and optimization Diagnostic research
Why JPT

Why Researchers Choose JPT

Technical peptide expertise, scientific support and quality-managed production for custom modified peptide projects.

20+

Years of Peptide Expertise

Long-standing experience in custom peptide synthesis and peptide technologies.

Scientific Customer Support

Project guidance from peptide specialists for complex modification requirements.

1M+

Peptides Per Year

Large-scale peptide production capacity for research and development programs.

QA

Certified in Germany

Quality-managed peptide production from JPT’s Berlin-based facilities.

Quality & Support

Quality-Controlled Peptides With Expert Support

JPT supports researchers with sequence review, modification feasibility, synthesis strategy, purification, QC and documentation options for custom modified peptides.

  • Scientific project evaluation
  • Modification feasibility support
  • Purity and QC options
  • Support for complex peptides
  • Quote-based custom synthesis
Quote Process

How to Request a Quote

Send your peptide sequence, modification requirements or project details. JPT will review your request and prepare a tailored quote.

01

Share your sequence or project details

Include peptide sequence, modification type, scale, purity and intended use where available.

02

JPT reviews feasibility and requirements

Peptide specialists evaluate modification feasibility, synthesis strategy and quality needs.

03

Receive a tailored peptide quote

Your quote is based on sequence, complexity, scale, purity, labeling and analytical requirements.

Ready to Discuss Your Modified Peptide Project?

Send your sequence, modification requirements or project details. JPT’s scientific support team will help evaluate your request.

Your request will be reviewed by peptide specialists.

Check our list of products, click and go.

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