Review Article

Oxidative Stress Control by Apicomplexan Parasites

Table 2

Antioxidant enzymes in T. gondii.

ProteinsAbbr.T. gondii CommentsStage LocalisationReferences

Directly dealing with prooxidants
 CatalaseCATAF161267ConstitutiveCytoplasmatic[104, 105, 107]
 Glucose-6-phosphate dehydrogenase XP_002370586Putative
 Superoxide dismutase (SOD1) FeSODB1AF029915Fe in the active siteTachyzoite/bradyzoiteCytoplasmatic[115]
 Superoxide dismutase (SOD2) SOD2AY176062ConstitutiveMitochondrial[107]
 Superoxide dismutase (SOD3)SOD3AY254045Sporulated oocystMitochondrial[107]
 PeroxiredoxinPrx1AF3057182-Cys mechanismConstitutiveCytoplasmatic[107, 127]
 PeroxiredoxinPrx2AF3972131-Cys mechanismTachyzoite/bradyzoiteCytoplasmatic[107]
 PeroxiredoxinPrx3AY2510212-Cys mechanismConstitutiveMitochondrial[107]
Glutathione system
 Glutathione peroxidase 1 AY043228PutativeTachyzoite/bradyzoite
 Glutathione reductase AF041450Putative
 Glutathione synthase XP_002366333 Putative
 Glutathione-S-transferase XP_002369230Putative
γ-Glu-Cys synthase XP_002368128 Putative
 GlutaredoxinGrx1BM131493Putative
 GlutaredoxinGrx2BM040167Putative
Thioredoxin system
 ThioredoxinTrxBG657266PutativeConstitutive[117]
 Thioredoxin peroxidase 1 BM039715PutativeOocyst[117]
 Thioredoxin reductase TrxRAA519618Putative