Original Research

Stucture and function of peroxisomes

J. J. Theron, D. H. van Papendorp
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie | Vol 13, No 2 | a582 | DOI: https://doi.org/10.4102/satnt.v13i2.582 | © 1994 J. J. Theron, D. H. van Papendorp | This work is licensed under CC Attribution 4.0
Submitted: 09 July 1994 | Published: 09 July 1994

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J. J. Theron,, South Africa
D. H. van Papendorp,, South Africa

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Peroxisomes found in most pro - and eucaryotic cells are usually round or oval cytoplasmic structures of varying size with a finely granular matrix surrounded by a single membrane. Crystalline inclusions described as nucleoids or marginal plates that consist of aggregates of enzyme molecules such as urate oxidase or L-a-hydroxyacid oxidase respectively, are found in some peroxisomes. Biogenesis of peroxisomes occurs through the translocation of proteins from the cytosol across the limiting membrane of the organelle and a carboxyterminal tripeptide signal, SKL, or minor modifications of this motif, is required for this process.


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