catalytic activity fraction

of an isozyme
Also contains definition of: catalytic fraction
https://doi.org/10.1351/goldbook.C00884
Quotient of the catalytic activity of the @[email protected] and the catalytic activity of all the isozymes of the same enzyme in the system.
Notes:
  1. The term catalytic fraction is accepted for use in clinical chemistry.
  2. The definition is based on the definitions of @[email protected] and @[email protected]
  3. The definition also applies to other multiple forms of an enzyme that are not isoenzymes.
Source:
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 964 [Terms] [Paper]