Creative Diagnostics has extensive experience in development a successful immunization protocol improving the generation of polyclonal anti-idiotype antibodies (anti-IDs). Polyclonal antibodies are a mixture of immunoglobulins that recognize different epitopes on a specific antigen. In addition to the traditional mouse and rabbit options, we also offer goat, chicken, sheep, donkey, Guinea pig, Llama, Camel, horse, dogs, bovine, primate or host animals specified by the clients.
Features and Benefits of Polyclonal Antibodies
Recognition of many epitopes on any single antigen
Easier detection of denatured proteins
Enhanced target protein signal amplification
Better management of antigen modifications
Fragmentation and purification of your antibody to obtain F(ab) & F(ab)2 fragment
Peptide Synthesis (up to 20 aa) & Conjugation (3-4 weeks)
5-10mg, purity > 90% by HPLC
Conjugation of peptide to carrier protein (KLH, BSA, OVA)
Immunization of conjugate into desired host species
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Fab & F(ab)2 Fragmentation and purification (3-4 weeks)
Fab or F(ab)2 fragment generation with papain /pepsin
Fab or F(ab)2 purification from protein A /G
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Services 1: 1 or 2 Rabbit, 63-days
3-5 immunizations
Test bleed day 35 & ELISA titer determination
Final bleed: 40 – 90 ml serum
Services 2: 1 Super-Fast rabbit, 28-days
4 immunizations
Final bleed: 40 – 90 ml serum
Services 3: PhosphoSpecific Antibodies
Peptide synthesis: phospho & non-phosphopeptide
Immunization of 2 rabbits
Purification: affinity purification & depletion
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Antigen Affinity Purification
Antigens are covalently bound to agarose beads bysulfhydryls
Immuno-affinity purification of polyclonal antibodies
Common Applications of Polyclonal Anti-Idiotypic Antibodies
Preclinical research of therapeutic antibodies
Anti-drug Antibodies (ADA) for clinical development
Pharmacokinetic (PK) studies
Immune Response (IR) immunogenicity assays
Controls in ligand binding neutralizing assays
Controls in antibody blocking assays
The FDA recommends that the sponsor develops polyclonal anti-idiotypic antibodies as positive controls for antibody immunogenicity assays. Creative Diagnostics has a proven track record of achieving successful outcomes with higher complexity projects. Our ability to work closely with customers to clearly understand their end application, define their specific project goals and design a detailed project plan is the key to our high success rate delivering quality polyclonal anti-idiotype antibodies.