The products of the mutant and normal allele do not, however, appear to associate randomly to
form isozymes.
The similarity of the relative retardation of normal and
mutant isozymes in gels made with increasing concentrations of starch suggests that they do not differ significantly in size.
The appearance of the variant after starch - gel electrophoresis of the hemolysates supports the concept that the lactic
dehydrogenase isozymes are determined by the interaction of two subunits which are under separate genetic control.
Aloe vera — the gel of the aloe vera stem contains seven
isozymes of superoxide dismutase.
Among the other genes she says play a role in thoroughbred performance are peroxisome proliferator - activated receptor - γ coactivator - 1 alpha (PGC - 1α), which is involved in skeletal muscle adaptation to exercise; pyruvate dehydrogenase kinase,
isozyme 4 (PDK4), involved in glucose regulation, expression of which increased almost fourfold after sprints; and cytochrome c oxidase subunit 4 isoform 2 (COX 4I2), involved in respiration.
Activation of both protein kinase A (PKA) type I and PKA type II
isozymes is required for retinoid - induced maturation of acute promyelocytic leukemia cells.
5 alpha - reductase activity was determined at pH 5 (optimal for the type 2
isozyme) and pH 7 (optimal for the type 1 isozyme) in isolated infrainfundibular segments from sebaceous and vellus follicles...