Chaperone‐like effect of monoclonal antibodies on refolding of heat‐denatured carboxypeptidase A

Beka Solomon*, Fidi Schwartz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The availability of monoclonal antibodies which bind to a specific antigen at distinct and well‐defined sites has led to a better understanding of the effects of highly specific enzyme–antibody interactions on enzyme behaviour. By appropriate selection it has been possible to isolate those antibodies that are non‐inhibitory to biological activity of the enzyme and bind at strategic locations on the antigen molecule, resulting in a considerable stabilization effect on the enzyme conformation. Moreover, such monoclonal antibodies proved to have a chaperone activity leading to aconsiderable refolding effect on the enzyme which was already partially heat denatured. Renaturation of carboxypeptidase A after heat denaturation in the presence of selected monoclonal antibodies, was followed by recovery of its enzymatic activity. The refolding effect of anti‐CPA monoclonal antibodies, was followed by recovery of its enzymatic activity. The refolding effect of anit‐CPA monoclonal antibodies on heat‐denatured enzyme depends on the degree of denaturation of the enzyme and on the location of the antigenic site of each antibody. The additively effect of the pairs of monoclonal antibodies on the refolding process of CPA proved to be dependent on the localization of the antigenic sites of the monoclonal antibodies studied.

Original languageEnglish
Pages (from-to)72-76
Number of pages5
JournalJournal of Molecular Recognition
Volume8
Issue number1-2
DOIs
StatePublished - 1995

Keywords

  • carboxypeptidase A
  • monoclonal antibodies
  • refolding

Fingerprint

Dive into the research topics of 'Chaperone‐like effect of monoclonal antibodies on refolding of heat‐denatured carboxypeptidase A'. Together they form a unique fingerprint.

Cite this