Trichomonas hominis

CpPNO in carbohydrate metabolism is not yet known, a Nar/-like hydroge-nase has been identified in both C. parvum (Stejskal et al. 2003 Abrahamsen et al. 2004) and C. hominis (Xu et al. 2004), which may function to oxidize the NADPH produced by PNO during pyruvate decarboxylation. Unlike other amitochondriate protists (Entamoeba, Giardia, Trichomonas), neither of these Cryptosporidia possesses an [FeFe]-hydrogenase capable of transferring electrons produced during the oxidation of PFO (Horner et al. 2000). It is proposed that the acetyl-CoA resulting from the decarboxylation of pyruvate in C. parvum may then be converted to malonyl-CoA (Templeton et al. 

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