decreasing the isoelectric point ( pi ) of isoenzyme c from 8.2 to 4.4 decreases its transport , but a basic pi is not the sole requisite for transportability since two other basic peroxidases ( turnip isoenzyme p7 and lactoperoxidase ) are not transported in retrograde .
C0031179
peroxidases
C0022948
lactoperoxidase