Article (Scientific journals)
Efficient refolding of a recombinant abzyme : Structural and catalytic characterizations.
Ben Naya, Raouia; Matti, Kalyankumar; Guellier, Adeline et al.
2013In Applied Microbiology and Biotechnology, 97 (17), p. 7721-31
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Keywords :
Abzymes; Catalytic antibodies; Single chain variable fragment; Cytoplasmic expression; Refolding; beta-lactamase
Abstract :
[en] Catalytic antibodies are currently being investigated in order to understand their role under physio-pathological situations. To this end, the knowledge of structure-function relationships is of great interest. Recombinant scFv fragments are smaller and easier to genetically manipulate than whole antibodies, making them well suited for this kind of study. Nevertheless they are often described as proteins being laborious to produce. This paper describes a highly efficient method to produce large quantities of refolded soluble catalytic scFv. For the first time, the functionality of a refolded catalytic scFv displaying a beta-lactamase activity has been validated by three approaches: (1) use of circular dichroism to ensure that the refolded had secondary structure consistent with a native scFv fold, (2) development of enzyme-linked immunosorbant assay and surface plasmon resonance (SPR) approaches for testing that the binding characteristics of an inhibitory peptide have been retained, and (3) proof of the subtle catalytic properties conservation through the development of a new sensitive catalytic assay using a fluorogenic substrate.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Ben Naya, Raouia
Matti, Kalyankumar
Guellier, Adeline
Matagne, André  ;  Université de Liège - ULiège > Département des sciences de la vie > Enzymologie et repliement des protéines
Boquet, Didier
Thomas, Daniel
Friboulet, Alain
Avalle, Berangere
Padiolleau-Lefevre, Severine
Language :
English
Title :
Efficient refolding of a recombinant abzyme : Structural and catalytic characterizations.
Publication date :
2013
Journal title :
Applied Microbiology and Biotechnology
ISSN :
0175-7598
eISSN :
1432-0614
Publisher :
Springer, Germany
Volume :
97
Issue :
17
Pages :
7721-31
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 20 August 2013

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