Peptide Synthesis - Frequently Asked Questions
Q: What is the typical turn-around time for peptide synthesis?
Q: How do you ship peptides? What QC data will be provided?
All peptides are lyophilized in a vial. Each peptide comes with both HPLC and MS reports.
Q: Is there any limitation on the length of peptides that can be achieved?
We can synthesize peptide from 2 amino acids up to 100 amino acids.
Q: What if some problems come up during the synthesis or purification process?
Due to the unique characteristic of each peptide, sometimes problems with synthesis or purification could occur beyond our expectations; however, when such a scenario occurs, we will inform you immediately.
Q: How do I request a quote for my peptide?
or call us at 1-800-758-1630 and ask for a peptide service representative.
Q: I have already submitted an order, can I still modify it?
Q: How is my peptide purified and confirmed?
Q: What is the purity for crude level peptide?
Q: How much does it cost?
Q: How much is shipping?
Q: Which purity is recommended for my application?
Our recommended purity guideline is as follows:
- Peptide purity >85%: immunological applications, polyclonal antibody production and nonsensitive screening.
- Peptide purity >90%: Structure-Activity Relationship and Bioassays.
- Peptide purity >95%: ELISA, enzymology, and biological related activities.
- Peptide purity >98%: Structural studies/Crystallography, NMR and sensitive bioassays.
Q: What would be the appropriate modification choice for my peptide terminals?
Q: How to dissolve my peptide?
Q: How do I store my synthetic peptides?
Q: Is C-terminal labeling of Biotin (or FITC) possible?
Q: Should I consider adding a Cysteine in peptides for making antibodies?
We recommend adding Cys at the NH2 terminus as it keeps the COOH free from conjugation
We recommend adding Cys at the COOH terminus as it keeps the NH2-terminal free from conjugation
we recommend adding Cys to the NH2-terminus as it is easier to synthesize, however, either end can be added.
Q: What conjugation methods we have?
Q: Why does my KLH/Peptide solution appear cloudy?
Q: What are the impurities in my peptide?
If you have any questions not covered in this section, please feel free to contact us at 800.758.1630.
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