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Peptide Library Services
Peptide libraries have become a commanding asset in the fast-growing field of proteomics and its related subfields including drug discovery, GPCR ligand screening, protein-protein interaction, functional proteome, nucleic acid binding, enzyme substrate or inhibitor screening, antigen and epitope mapping, discovery of signal molecules, peptide/protein cross talking, etc.

GenScript has upgraded its proprietary FlexPeptideTM platform to provide fully purified peptide libraries to meet the most exacting requirements for your peptide screening research. Now the peptide libraries not only come with flexible choice of different purity levels (crude, >70%, >80%, >90%, >95%) but also enhanced throughput. Each peptide in the library undergoes rigorous quality control. Complete QC data is available including Certificate of Analysis, RP-HPLC, and MS. In addition, improved economy of scale of the upgraded platform offers our customers the most competitive prices for peptide libraries.

GenScript has developed six powerful peptide library construction tools for epitope mapping, and sequence optimization of your peptide research. Please check out the PDF file shown right for all information on our peptide library services and screening toolspeptide library.
  • Screening Tools
  • Services Features
  • Quotations & Ordering

Combinatorial peptide libraries and HTS compound arrays have become key players in drug discovery. These libraries can be used to screen highly active compounds such as antigenic peptides, receptor ligands, antimicrobial compounds, and enzyme inhibitors. Some of the applications of peptide screening tools are as follows:

  1. Epitope mapping studies
  2. Vaccine research
  3. High-throughput protein-protein interaction analysis
  4. Customized peptide microarray production.
  5. Kinase assays
GenScript has developed six powerful screening tools for generating peptide libraries. They are overlapping peptide library, alanine scanning library, truncation library, positional scanning library, random library, and scrambled library which are necessary tools in epitope identification and sequence optimization for structure-function studies.


Key Features:

  • Flexible Purity Choices: Crude, >70%, >80%, >90% and >95% purity are available to meet your multiple demands.
  • No Cross-Contamination: Peptides are supplied in individual fully labeled vials.
  • Comprehensive Modifications: Our modification service includes labeling, the incorporation of unnatural amino acids, and peptide cyclization with disulfide bridges.
  • Stringent Quality Control: GenScript provides COA, MS and HPLC validation data for each peptide.

Service Specifications:

To meet the different purity demands for multiple applications, we have developed two library service packages: Crude and Purified Peptide Library for your choice. The specifications of the two library services are:

Crude Peptide Library (Catalog No.: SC1177)
  1. 1-4 mg ( 5-9 mg, 10-20 mg are also available) for each crude peptide
  2. Peptide length of 5-20 AA
  3. Certificate of Analysis, RP-HPLC(optional) and mass spectrum for each peptide
  4. Modifications including biotin, fluorescence, and unnatural amino acid etc.
  5. 1-2 weeks typical turnaround time
  6. Minimum order size is 24 peptides
Purified Peptide Library (Catalog No.: SC1487)
  1. 1-4 mg for each peptide
  2. Purity: Choice of >70%, >80%, >90% or >95% by RP-HPLC
  3. Peptide length of 5-18 AA
  4. Certificate of Analysis, RP-HPLC and mass spectrum for each peptide
  5. Modifications including biotin, fluorescence, and unnatural amino acid etc.
  6. 2-3 weeks typical turnaround time
  7. Minimum order size is 24 peptides

Delivery Specifications:

The typical delivery consists of:

  • Lyophilized unbound peptides in individual fully labeled vials
  • COA, MS and HPLC data

Quotations and Ordering:

For quotations, please contact us by email, phone (1-732-885-9188), fax (1-732-210-0262), or via our Secure Messaging System. In the body of the message, please include the following:

  1. Number of peptides desired
  2. Length and sequence of each peptide
  3. Minimum quantity and purity requirements
  4. Number of overlapping residues, if relevant
  5. Modifications and other specifications

Order can be placed by email, phone, or fax with either a PO (Purchase Order) or credit card. Please submit your peptide sequence at peptide@genscript.com using our Peptide Library Service Order Form. Our customer service representatives are available 24 hours, Monday through Friday to assist you.

We accept POs and major credit cards (credit card order). A 7% New Jersey sales tax will be applied to orders shipped to New Jersey. Your credit card will be billed under "GenScript USA Inc." Click here to download our credit reference form. For international orders, we must apply the full charge at the time the order is placed. In the unlikely event that any given order cannot be filled, our guarantee will take the form of a full refund.

Order by email: peptide@genscript.com
Order by phone: 1-877-436-7274 (Toll-Free) 1-732-885-9188
Order by fax: 1-732-210-0262 1-732-885-5878