TY  - JOUR
A1  - Messerschmidt, Katrin
A1  - Degen, Janine
A1  - Micheel, Burkhard
T1  - Oxidoreductase activity of multifunctional monoclonal antibody B13-DE1
JF  - Journal of molecular recognition : an international journal devoted to research on specific molecular recognition in chemistry, biology, biotechnology and medicine
N2  - The monoclonal antibody B13-DE1 binds fluorescein, several fluorescein derivatives, and three peptide mimotopes. Our results revealed that this antibody also catalyzed the redox reaction of resazurin to resorufin, which are both structurally related to fluorescein. By using sodium sulfite as a reducing agent, the antibody B13-DE1 lowered the activation energy of this reaction. The Michaelis-Menten constant and turnover number of the catalyzed reaction were determined as 4.2 mu mol/l and 0.0056 s(-1), respectively. Because the results showed that fluorescein inhibited the catalytic activity of the antibody, we assume that the antigen-binding site and the catalytic active site are identical.
KW  - catalytic antibody
KW  - fluorescein
KW  - oxidoreductase
KW  - resazurin
KW  - resorufin
Y1  - 2011
U6  - https://doi.org/10.1002/jmr.1136
SN  - 0952-3499
VL  - 24
IS  - 6
SP  - 930
EP  - 934
PB  - Wiley-Blackwell
CY  - Malden
ER  -