2.7.6.2 cytosol - 2.7.6.2 cytosol exclusively 2.7.6.2 cytosol isozymes TPK1 and TPK2 2.7.6.2 additional information no enzyme localization in the peroxisome, subcellular localization analysis, overview 2.7.6.2 peroxisome Peroxisomes are devoid of thiamine pyrophosphokinase activity.