Anti-Polyethylene Glycol (PEG)
Anti-PEG Rabbit Monoclonal Antibodies and ELISA Kit
Polyethylene glycol (PEG) is a family of long chain polymers attached to a glycerine backbone. It is a nonionic, nontoxic, biocompatible, strongly hydrophilic polymer, which has a large exclusion volume in aqueous solution (1). The covalent attachment of PEG (PEGylation) is commonly used to modify a variety of proteins and drugs (2-4).
Benefits of PEGylated molecules include:
- increased bioavailability
- increased blood circulation of the drug
- optimized pharmacokinetics
- decreased immunogenicity
- decreased frequency of administration.
Due to the nonionic and biocompatible nature of PEG it is not very immunogenic and thus very difficult to raise antibodies against. After extensive development Epitomics was able to successfully generate a high quality PEG Rabbit Monoclonal Antibody. This PEG Rabbit Monoclonal can reliably be used for the quality control of PEGylated molecules as well as monitoring the pharmacokinetics of PEGylated molecules via ELISA, WB and Immunohistochemistry.
Anti-PEG Rabbit Monoclonal Antibodies
The modification of a biopharmaceutical with PEG increases its hydrodynamic radius, and reduces immunogenicity
and proteolytic cleavage. Other benefits include decelerated renal excretion, improved stability towards proteolysis and
increased solubility of the biopharmaceutical in aqueous solutions.
An Anti-PEG antibody can be used to monitor a drug's pharmacokinetics, including distribution, metabolism and excretion. Also, it can be used for the quality control of pegylated molecules in ELISA, WB and IHC.
- Anti-PEG Rabbit Monoclonal IgG Antibody, PEG Terminal Region specific (2061-1)
- Anti-PEG Biotinylated Rabbit Monoclonal IgG Antibody (2137-1)
- Anti-PEG Rabbit Monoclonal IgM Antibody, PEG Backbone specific (3104-1)
PEG ELISA Kit - New complete competition based ELISA Kit
The PEG ELISA kit operates on the basis of competition between the enzyme (HRP) conjugated PEG and PEG labeled molecules for a limited number of binding sites on the surface of 96-wells coated with Anti-PEG antibody. The extent of color development resulted from interaction between HRP and substrate TMB is inversely proportional to the amount of PEGylated molecules in the sample (Fig 1).
Fig 1. Competition between PEG labeled HRP (H) and PEG labeled sample (S) in PEG ELISA assay.