The potential of microbial enzymes as diagnostic reagents.

There has been a rapid growth in the application of microbial enzymes for diagnosis in the area of clinical chemistry. The reasons behind this trend are discussed. Descriptions and illustrations are given of the use of microbial enzymes in the determination of metabolic marker analytes; in the assay of antibiotics, analgesic and chemotherapeutic drugs, and in the quantitation of antibody-antigen interactions.