GenScript offers a full suite of high quality custom polyclonal antibody production services designed with your needs in mind. Since 2004, our team has produced over 15,000 high quality custom polyclonal antibodies from rabbit, mouse, and rat hosts. The PolyExpress™ protein immunization package carries industry-leading guarantees of WB positive against target protein binding with 1:256,000 ELISA titer. All you need to provide is your target sequence and GenScript gets to work.

The PolyExpress™ peptide immunization package (SC1180) starts with peptide antigen design using our proprietary OptimumAntigen design tool and finish with affinity purified polyclonal antibodies in just 45 days. The PolyExpress™ protein immunization package (SC1676) starts with protein antigen production and guarantee the delivery of antigen affinity-purified antibody 2 weeks faster than any other vendor.


Antibody Figure 1 Cost effective and comprehensive

pricing starts from $899 and includes antigen synthesis and purification!

Antibody Figure 2 Fast turnaround time

delivery of purified custom polyclonal antibodies in as little as 45 days.

Antibody Figure 3 Optimal immunization

Our OptimumAntigen design tool and intelligent Antigen Strategy increase specificity and affinity of antibodies.

Antibody Figure 4 Guaranteed results

affinity purified custom polyclonal antibody quantities and ELISA titers of 1:256,000.

Antibody Figure 5 Certified facility

AAALAC International accreditation and OLAW certification, demonstrating our commitment to responsible animal care and use.

Service Details

Details of PolyExpress™ Custom Polyclonal Antibody Production Services

Feature Details SC1180 SC1676
Immunization Antigen Synthesized 1 peptide 1 protein
No. of Rabbits Immunized 2
Deliverables Negative Control Total IgG (optional: pre-immune serum or total serum protein delivery)
Antigen Sample 2 mg peptide antigen 200 μg protein
Antigen Affinity Purified pAb(s) 1 (2-6 mg total) 1 (2-10 mg antigen affinity purified total antibody)
Guaranteed Items Application ELISA titer 1:256,000 Dot Blot/WB positive for target antigen binding; ELISA titer 1:256,000
Antibody Yield 1 purified pAb ≥ 2 mg 2-10 mg antigen affinity purified total antibody
Timeline 45 days 10-11 weeks

*GenScript provides peptide synthesis, peptide design, carrier conjugation and antibody purification for free.
**During the development of the antibody, if there is the death of the experimental animal, we will choose the adjusted immunization process for re-immunization to ensure the high quality and efficiency of the order.

Case Studies

Application Guidance

Assays Western Blot Sandwich ELISA IF, IHC,
Flow Cytometry
Requirements&Rating Rationale
  • Average affinity and specific recognition.
  • High specificity and sensitivity.
  • Ability to use same pAb as both capture and detection.
  • High specificity and sensitivity.
  • Conformational epitope recognition.
  • Recognize multiple epitopes
    • recovers more target
    • overcomes obscured epitopes
  • Conformational epitope recognition
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SC1180 starstarstarstarstar starstarstarstarstar starstarstarstarstar starstarstarstarstar starstarstarstarstar

Polyclonal Antibody Services Recommendations

For polyclonal antibodies targeting poorly defined epitopes we recommend protein antigens. Protein antigens provide the immune system the complete profile of exposed epitopes in the same conformational context the antibody will ultimately recognize the antigen such as FACS, sandwich ELISA, or receptor blocking for example.

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Antibody Services

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Quotation and Ordering

Our customer service representatives are available 24 hours Monday through Friday. You may contact us anytime for assistance. Orders can be placed online, over the phone, by email or fax. Please have your payment information (credit card, purchase order or bank information) ready.

Fill out the online form and email to [email protected]
A Technical Account Manager will reply you within 24 hours to finalize the quote
To place order, provide credit card/PO information
Production of your project begins immediately
A Project Manager is in contact with you during the production process to give updates



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