Peroxisomal diseases

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

General aspects of peroxisomes: Peroxisomes were first identified in renal proximal tubule cells by a Swedish graduate student in 1954. Initially called microbodies, these organelles were studied intensively by de Duve and coworkers. Because they contained enzymes that both produced (e.g. amino acid and urate oxidases) and degraded (e.g. catalase) hydrogen peroxide, de Duve proposed the name peroxisomes [1]. Microbodies found in some lower organisms and plants were named for the specialized functions that they carry out. For example, glyoxysomes of fungi and plants contain the five enzymes of the glyoxylate cycle and glycosomes house the enzymes of glycolysis in trypanosomes. While peroxisomes have been found in essentially all plant and animal cells with the exception of mature erythrocytes, they range in size from about 0.1μm (microperoxisomes of intestine and brain) up to 1.0μm (characteristic of hepatic and renal peroxisomes; range: 0.2–1.0μm) (Figure 37.1). A single lipid bilayer comprises the peroxisomal membrane. The organelle's matrix is finely granular, but microcrystalline cores of urate oxidase are present in the hepatic peroxisomes of some species (e.g. rats). No cores are found in human peroxisomes as humans lack urate oxidase. Unlike chloroplasts and mitochondria, peroxisomes contain no DNA although it has been speculated that all three organelles evolved from endosymbionts. Since the discovery of peroxisomes, numerous membrane proteins and matrix enzymes have been identified. Much research on peroxisomes has been fueled by the identification of patients whose cells lack either normal appearing organelles or one or more peroxisomal metabolic functions.

Original languageEnglish (US)
Title of host publicationLiver Disease in Children, Fourth Edition
PublisherCambridge University Press
Pages649-663
Number of pages15
ISBN (Print)9781139012102, 9781107013797
DOIs
StatePublished - Jan 1 2011

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Peroxisomes
Microbodies
Urate Oxidase
Organelles
Enzymes
Glyoxysomes
Proximal Kidney Tubule
Trypanosomiasis
Liver
Plant Cells
Lipid Bilayers
Glycolysis
Chloroplasts
Catalase
Hydrogen Peroxide
Intestines
Names
Mitochondria
Membrane Proteins
Fungi

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Watkins, P. A., & Schwarz, K. (2011). Peroxisomal diseases. In Liver Disease in Children, Fourth Edition (pp. 649-663). Cambridge University Press. https://doi.org/10.1017/CBO9781139012102.038

Peroxisomal diseases. / Watkins, Paul A; Schwarz, Kathleen.

Liver Disease in Children, Fourth Edition. Cambridge University Press, 2011. p. 649-663.

Research output: Chapter in Book/Report/Conference proceedingChapter

Watkins, PA & Schwarz, K 2011, Peroxisomal diseases. in Liver Disease in Children, Fourth Edition. Cambridge University Press, pp. 649-663. https://doi.org/10.1017/CBO9781139012102.038
Watkins PA, Schwarz K. Peroxisomal diseases. In Liver Disease in Children, Fourth Edition. Cambridge University Press. 2011. p. 649-663 https://doi.org/10.1017/CBO9781139012102.038
Watkins, Paul A ; Schwarz, Kathleen. / Peroxisomal diseases. Liver Disease in Children, Fourth Edition. Cambridge University Press, 2011. pp. 649-663
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