For Science… From Science®

Frequently Asked Questions

Frequently Asked Questions



  • What do I do with the ends of my peptides - keep them free or block them?
  • If my peptide is 95% pure, what is in the other 5%?
  • How do I reconstitute my peptide?
  • What is PepTrend™?
  • What is net peptide content and what does it mean?
  • What purity do I need for my experiments?
  • How do I store my peptides?
  • What is the maximum peptide length you can produce?
  • Why does my KLH/peptide solution appear cloudy?


  • How can New England Peptide help me with my HTS?
  • Which array analysis tier is right for me?


  • Which antibody package is right for me?
  • What species should I choose for my antibody production?
  • Why do I need two rabbits?
  • Why should I use a peptide for antibody production?
  • How do you choose the best antigen?
  • Can I inject more than one peptide into the same set of animals?
  • What chemistry do you typically use for carrier protein conjugation?
  • What do I do with my pre-immune serum?
  • How do you test for reactivity?
  • How much antibody should I expect to receive?
  • How do I store my antisera / antibody?
  • How long can I expect my rabbits to produce good antibody?
  • Will I be able to use my antibody in multiple applications?
  • What are your accreditations?


  • What should I use as an antigen?
  • If I send you material, how much do you need and how should I send it?
  • What strain(s) of mice should I use?
  • What screening method does NEP use?
  • What will I receive at the end of the package?
  • What is NEP's policy of ownership and confidentiality?


"THANKS AGAIN for all the intellectual support that NEP has provided to us over the last year. My colleagues have been overwhelmingly impressed with the quality of service and level of thought that you have put into researching and thinking about our particular peptide and antibody production needs. The level of scholarship went well beyond what we expected from any peptide and antibody company, and was crucial in shaping our decisions. It has truly been a pleasure corresponding with you."
Cliff N. PhD - Lawrence Berkeley National Laboratory