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  • Title: In or out? On the tightness of glycosomal compartmentalization of metabolites and enzymes in Trypanosoma brucei.
    Author: Haanstra JR, Bakker BM, Michels PA.
    Journal: Mol Biochem Parasitol; 2014 Nov; 198(1):18-28. PubMed ID: 25476771.
    Abstract:
    Trypanosomatids sequester large parts of glucose metabolism inside specialised peroxisomes, called glycosomes. Many studies have shown that correct glycosomal compartmentalization of glycolytic enzymes is essential for bloodstream-form Trypanosoma brucei. The recent finding of pore-forming activities in glycosomal membrane preparations and extensions of the trypanosome glycolysis computer model with size-selective pores sparked again an old debate on the extent of (im)permeability of the glycosomal membrane and whether glycosomally located glycolytic enzymes could and should also be present with some activity in the cytosol. This review presents a critical discussion of the experimental and theoretical evidence for and against the different hypotheses.
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