JPT Peptide Technologies is a Berlin-based supplier of research peptides and related services. Its portfolio extends beyond custom synthesis to peptide pools, libraries, arrays, bioassays, analytics, catalog products and bioconjugates. JPT says it began in 2004 as a spin-off from Jerini AG, with ultra-high-throughput SPOT peptide synthesis among its founding technologies.
What does JPT Peptide Technologies do?
JPT describes its products and services as tools for research in immunology, immune monitoring, proteomics, drug discovery, cell therapy, vaccine development, neo-epitope research and translational research. Its range includes custom peptides, peptide pools, clinical and pre-GMP peptides, libraries, arrays and microarrays, bioassays and analytics, catalog peptides, bioconjugates, and critical raw-material peptides. These are company-described offerings and intended research uses; they do not establish that a product is suitable for a particular clinical application.
JPT says its production and services are carried out in Berlin and that it holds ISO 9001:2015 certification from TÜV Rheinland. The available company materials do not independently audit product performance or regulatory suitability. JPT Peptide Technologies
How SPOT synthesis connects to JPT’s peptide portfolio
JPT’s company history identifies ultra-high-throughput SPOT peptide synthesis as a foundational technology. The company presents its current work as a broader portfolio of peptide formats and services rather than a single synthesis product. In practice, a research team’s choice depends on the experimental question: an individual custom peptide, a collection of related sequences, or a format designed for screening or assay use.
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JPT describes library services from nmol-scale to mg and g quantities, with specifications varying by library type and application. It lists QC options ranging from unpurified material to defined high-purity grades, with options such as LC-MS and quantitation, and delivery in tubes or multiwell plates. These are company-published service descriptions, not a guarantee of a particular result. JPT peptide libraries
Which peptide library fits which research question?
| Library or peptide format | Research question or use described by JPT | Design distinction |
|---|---|---|
| Overlapping peptide library | Epitope mapping | Overlapping sequences are used to examine regions of a target. |
| Alanine-scanning library | Identifying key residues | Residues are systematically substituted to assess their contribution. |
| Positional-scanning library | Sequence optimization | Substitutions at sequence positions support comparison of variants. |
| Cyclic peptide library | Constrained peptide optimization | Cyclic designs constrain peptide structure. |
| PepTrack library | Cellular assays and immune monitoring | JPT describes this format for those applications. |
| Proteomics reference peptides | Proteomics workflows | JPT includes stable-isotope-labeled and absolute-quantified peptides. |
| Biotinylated peptides | Assays requiring immobilization | Biotin provides a means of immobilizing the peptide in an assay. |
These formats are not interchangeable guarantees of experimental success. The library design should follow the biological question, and the synthesis scale, QC specification, modifications and delivery format should be selected around the planned assay. JPT notes that available specifications depend on library type and application. JPT peptide libraries
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What to clarify before requesting a peptide or library
- Research objective: State whether the goal is epitope mapping, residue identification, sequence optimization, proteomics, immune monitoring or another application.
- Design: Specify the target sequence, library strategy, overlap or substitution scheme, and any required cyclic or other modified form.
- Scale and QC: Confirm the needed quantity and purity, and whether LC-MS, quantitation or another stated QC option is required.
- Delivery: Identify whether tubes or multiwell plates best fit the experiment.
- Application boundaries: For clinical, pre-GMP or translational work, confirm the exact product specification and regulatory documentation directly with the supplier; a service category alone does not establish approval or suitability.
What JPT’s published company figures do—and do not—show
JPT’s peptide-library page displays “1,000,000+ peptides synthesized per year,” “20,000+ Global customers,” and “3,000+ publications citing JPT’s peptides.” The page does not state a year for these figures. They should therefore be read as undated company-reported figures, not independently verified or tied to a specific year. JPT peptide libraries
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to evaluate JPT as a supplier
JPT’s history page calls it “a leading German company based in Berlin”; that is the company’s own description, not an independent ranking. The company’s materials establish the stated breadth of its portfolio and describe its intended research applications, but they do not independently establish comparative performance, synthesis success rates, or clinical outcomes. Teams choosing a supplier should compare the specification required for their assay with the written quote and product documentation, rather than treating scale or portfolio breadth as evidence that a particular peptide will work in a particular experiment. JPT company history
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