Peptide purity refers to the proportion of the desired peptide relative to other contaminants and impurities in a sample. Peptide purity plays a critical role in the success and integrity of your research projects. Here is a list of recommended purity level for some common peptide applications for your reference. Certain applications (e.g. clinical trials) will require GMP grade peptides and FDA approval. Creative Peptides provides research grade peptides which are for research use only. Not to be used for clinical, diagnostic or therapeutic purposes, or human consumption.
Crude or higher by HPLC
- Non-sensitive screening
- Sequence optimization
- Protein-protein interactions studies
- Receptor-ligand interactions studies
75% to 85% by HPLC
- Peptide arrays
- ELISA testing
85% to 90% by HPLC
- Epitope mapping
- Phosphorylation assays
- Coating tissue culture plates for cell attachment
- Protein electrophoresis applications
- Non-quantitative or semi-quantitative enzyme-substrate studies
- Peptide antigens for affinity purification
- Peptide antigens for antibody production
- Non-quantitative peptide blocking studies for Western Blot
- Coupling to chromatography resins for affinity purifications
>95% by HPLC
- In-vitro bioassays & studies
- In-vivo studies
- NMR studies
- Enzymology
- Generating standard curves
- Quantitative receptor- ligand interactions studies
- Quantitative blocking and competitive inhibition studies
- Quantitative phosphorylation studies
- Quantitative proteolysis studies
>98% by HPLC
