Polyclonal antibody production

Get the highest affinity polyclonal antibodies with 30% off! Our integrated solutions include the polyclonal antibody production steps from antigen design to purification. Our polyclonal antibody production services are available using various species such as rabbit, chicken, mouse, rat, goat, sheep, llama or alpaca!

Why choose ProteoGenix' polyclonal
antibody production services?

Guaranteed polyclonal antibody production
Strong guarantees

All our packages include a high antibody titer guarantee (1/64000 in ELISA). Our anti-protein package even includes WB positive results.

Competitive price

With all-included packages starting from 255€, we provide the most competitive price on the market!

Buy polyclonal antibodies
Instant online order

Save time and buy polyclonal antibodies directly online thanks to our online form!

Custom polyclonal antibody formats
Large choice of species

Choose between different species depending on the volume and format of antibodies you require!

Integrated polyclonal antibody production solutions
One-stop solution

We offer integrated polyclonal antibody production solutions from antigen design to purification and conjugation (if requested).

Fast polyclonal antibody generation
Express service

Get your polyclonal antibodies in 28 days thanks to our ExpresswayTM protocol.

Our polyclonal antibody production packages

Peptide synthesized by ProteoGenix 2 peptides Modified and non-modified peptides
Recombinant Protein produced by ProteoGenix
Provided by customer
Immunization of 2 rabbits
Standard (51 days) or Express protocol (28 days)? Standard Standard Standard ExpresswayTM Standard Standard
vs. Protein A or G
vs. Antigen Purification/ depletion
No purification
Guarantee ELISA titer ELISA titer WB + ELISA titer ELISA titer ELISA titer ELISA titer
Timeline 9-10 weeks ≈15 weeks ≈13-15 weeks 28 days ≈15 weeks ≈15 weeks

Our polyclonal antibody production process

Antigen design for phage display screening
Antigen design
  • Definition of an antigen design strategy for optimized polyclonal antibody production
  • Protein design
  • Peptide design

1-2 days


Designed sequence for customer’s validation

antigen design for polyclonal antibody generation
Antigen production

3-5 weeks for protein
3 weeks for peptide


Antigen sample (protein or peptide)

animal immunization for polyclonal antibody production
Animal immunization
  • Animal injection with the antigen produced or provided + Freund’s adjuvant
    Injection route: subcutaneous, intradermal, intramuscular, intraperitoneal, intravenous

Fast: 28 days
Protein: 51 days

Peptides: 70 days


Pre-immune serum

Custom polyclonal antibodies test
Antibody testing
  • Antibody QC analysis : ELISA, Western Blot or Dot Blot (depending on the guarantees)

1-2 days


Final Immune serum (if no purification)

Custom polyclonal antibodies purification
Serum purification
  • Purification against protein A or protein G
  • Purification against antigen
  • No purification

1 week


-Purified polyclonal antibodies (serum of each animal is purified separately)
-Certificate of analysis (CoA)

Our recommendations for polyclonal antibody production


Selecting the most appropriate species for your polyclonal antibody production requires taking several factors into account:

  • The amount of pAb needed: Rabbits are the most commonly used animals for polyclonal antibody production due to their convenient size and their ability to produce high titer and high affinity antibodies. Larger amounts of polyclonal antibodies can be obtained from larger species such as goat, sheep, llama or alpaca.
  • Chickens also represent an interesting alternative for production of large amounts of polyclonal antibodies as the antibodies generated pass from the blood to the egg yolk. Thus, antibodies can be collected directly from the egg and allows circumventing the bleeding step.
  • Phylogenetic distance: The choice of host to immunize is also governed by the species from which the antigen is taken. The greater the phylogenetic distance between the animal to immunize and the source of antigen, the better the immune response. Thus, when immunizing with an antigen highly conserved in mammals, chickens could be considered a good choice.
  • Final use: The final application of your polyclonal antibody is another critical point which influences the choice of your host. A common example is the polyclonal antibody production for an ELISA assay as the animal species chosen for the primary antibody should be different from the host of the secondary antibody.


Our standard immunization protocol is 51 days – 4 injections for anti-protein polyclonal antibody production (with possibility to extend the protocol if the guarantees are not reached)

For anti-peptide polyclonal antibody production, our standard protocol is 70 days – 5 injections (with the possibility to extend the protocol if the guarantees are not reached)

It is usually recommended to immunize animals with a lower quantity of antigen and for a longer period of time, rather than to immunize them over a shorter period of time with a larger quantity of antigen.

If this seems too long, we also propose our ExpresswayTM protocol of 28 days (Fast polyclonal antibody production) which is made using our special adjuvant which is aimed at increasingthe immune response.

It is usually only recommended for anti-protein polyclonal antibodies because peptides might sometimes not be immunogenic enough to give a good immune response over a short period of time.

Need advice for your custom polyclonal antibody production? Please feel free to contact your dedicated account manager!

Polyclonal antibody production:
the advantages of camelid antibodies

Camelids differ from other mammals by their ability to produce unique antibodies. In addition to conventional IgG1 antibodies, they produce unique subclasses IgG2 and IgG3 lacking light chains and functional heavy chain domains. This singular structure provides several advantages to camelid antibodies, mainly due to their smaller size such as:

  • An increased stability at extreme pH or temperature,
  • A low steric hindrance allowing an easier access to buried antigens that would not be accessible to conventional antibodies,
  • A higher capacity of tissue penetration which is a precious asset for immunohistochemistry experiments or even for therapeutic applications.