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Alkyl-dihydroxyacetonephosphate synthase

H van den Bosch1, E C de Vet

  • 1Centre for Biomembranes and Lipid Enzymology, Institute of Biomembranes, Utrecht University, The Netherlands.

Biochimica Et Biophysica Acta
|November 25, 1997
PubMed
Summary

Ether phospholipids, vital for human health, are synthesized in peroxisomes. This review details alkyl-dihydroxyacetonephosphate synthase, crucial for ether lipid synthesis, and recent structural insights.

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Human Metabolism

Background:

  • Ether phospholipids, characterized by a glycero-ether linkage, constitute ~15% of human phosphoglycerides.
  • Their synthesis involves replacing an acyl chain with a long-chain alcohol, a process occurring in peroxisomes.

Purpose of the Study:

  • To review the synthesis of ether phospholipids.
  • To highlight the role of alkyl-dihydroxyacetonephosphate synthase in this process.
  • To present recent findings on the enzyme's structure and properties.

Main Methods:

  • Purification of alkyl-dihydroxyacetonephosphate synthase.
  • Cloning and expression of the cDNA encoding the enzyme.
  • Mechanistic studies of ether lipid synthesis.

Main Results:

  • Ether phospholipid deficiency is linked to peroxisome biogenesis defects, underscoring peroxisomes' essential role.
  • Alkyl-dihydroxyacetonephosphate synthase is the key enzyme in ether lipid synthesis.
  • Recent studies have provided new structural and property insights into this peroxisomal enzyme.

Conclusions:

  • Peroxisomes are indispensable for ether phospholipid synthesis.
  • Alkyl-dihydroxyacetonephosphate synthase is a critical enzyme in this pathway.
  • Further research into the enzyme's structure and function is ongoing.

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