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Related Experiment Video

Updated: Jan 19, 2026

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A Stroll Down the CerS Lane.

Iris D Zelnik1, Batsheva Rozman1, Eden Rosenfeld-Gur1

  • 1Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel.

Advances in Experimental Medicine and Biology
|September 11, 2019
PubMed
Summary
This summary is machine-generated.

Mammalian ceramide synthases (CerS), crucial for sphingolipid synthesis, have six types. Research explores their roles in N-acylation and the physiological importance of specific fatty acid ceramides.

Keywords:
CeramideCeramide synthaseN-acyl transferaseN-acylationSphingolipids

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Background:

  • Sphingolipid (SL) metabolism is vital for cellular functions.
  • Enzymes in SL biosynthesis are largely identified, but ceramide synthases (CerS) remain understudied.
  • CerS are key enzymes in catalyzing the N-acylation of sphingoid long chain bases.

Purpose of the Study:

  • To review current knowledge on the ceramide synthase (CerS) enzyme family.
  • To highlight the gaps in understanding CerS function and specificity.
  • To discuss the physiological implications of CerS-generated ceramides.

Main Methods:

  • Literature review of studies on ceramide synthases.
  • Analysis of enzyme kinetics and substrate specificity data for CerS.
  • Discussion of genetic and cellular studies involving CerS.

Main Results:

  • Six distinct mammalian CerS enzymes exist, each with specific fatty acyl-CoA preferences.
  • CerS enzymes exhibit broad specificity for long chain bases.
  • The precise biological reasons for multiple CerS and their specific ceramide products are not fully elucidated.

Conclusions:

  • Ceramide synthases are essential for producing specific ceramides with potentially distinct physiological roles.
  • Further research is needed to understand the functional diversity and regulation of the CerS family.
  • Elucidating CerS functions is critical for understanding sphingolipid metabolism and its impact on cell physiology.