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. 1976 Nov;73(11):3848-51.
doi: 10.1073/pnas.73.11.3848.

Immobilization of bacterial luciferase and FMN reductase on glass rods

E Jablonski, M DeLuca

Immobilization of bacterial luciferase and FMN reductase on glass rods

E Jablonski et al. Proc Natl Acad Sci U S A. 1976 Nov.

Abstract

Bacterial luciferase and NAD(P)H: FMN oxidoreductase isolated from Beneckea harveyi were covalently linked via diazotization to arylamine porous glass beads which had been cemented onto plain glass rods. These immobilized enzymes are individually active and also function to produce light via a coupled reaction utilizing NADH or NADPH. These enzymes have properties similar to the soluble forms with regard to pH and substrate optima and also exhibit linearity in peak intensity of the initial flash of light emitted as a function of NADH or NADPH concentration. Linearity with NADH is obtained in the range of 1 pmol to 50 nmol, and between 10 pmol to 200 nmol for NADPH. The bound enzymes are stable and reusable. This immobilized system offers a rapid and inexpensive m

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