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Recombinant penicillin binding protein, PBP2x, beta-lactam receptor protein


  • Highly sensitive to major beta-lactams
  • Validated in ELISA and lateral flow assays
  • Detection limit meets EU, US MRLs
Product Code: AB5022
Unit Size: 0.5 mg
  • This product is only for research use.
  • In case of payment failure, please contact [email protected].
  • For all ELISA kit, stop solution is 2M sulfuric acid.
  • User the form on the right for quick inquiry.

Product details

ProductRecombinant penicillin binding protein, PBP2x, beta-lactam receptor protein
Product #AB5022
Tags ,
Unit Size

0.5 mg


E. Coli






-20 degree celsius or below for long term storage. Room temperature for shipment.


At least 12 months when stored properly.


ELISA, lateral flow, etc.

Application Notes

Dilute the lyophlized product with distilled water 1mL, then determine the final dilution according to your own assay.
This recombinant protein can recognize various penicillins including penicillin G, amoxicillin, cefazolin, etc, which has been successfully used in commercial ELISA and lateral flow immunoassays for the detection of penicillins.

PBP2x, beta-lactam receptor protein is derived from E Coli. It can be used in bioassays for the detection of beta-lactams antibiotics, including penicillin, amoxicillin, cefalotin, etc. It is highly sensitive and specific to beta-lactam groups.

Penicillin-binding proteins (PBPs) are a group of proteins that are characterized by their affinity for and binding of penicillin. They are a normal constituent of many bacteria; the name just reflects the way by which the protein was discovered. All β-lactam antibiotics (except for tabtoxinine-β-lactam, which inhibits glutamine synthetase) bind to PBPs, which are essential for bacterial cell wall synthesis. PBPs are members of a subgroup of enzymes called transpeptidases. Specifically, PBPs are DD-transpeptidases.

PBP2x belongs to PBPs and represents a primary resistance determinant for beta-lactams.